Update and rename convert_full.py to convert.py

Engine/Model/convert.py

@@ -14,33 +14,17 @@ def preprocess_image(file_data, size, channels=1):
 
 ####################################################################################################
 
-def is_text_file(content, sample_size=1024):
-    raw = content[:sample_size]
-    if not raw:
-        return False
-    text_char = set(range(32, 127)) | {9, 10, 13}
-    nontext = sum(b not in text_char for b in raw)
-    return nontext / len(raw) < 0.15
-
 def get_type(file_path):
     suffix = {".com", ".dll", ".drv", ".exe", ".ocx", ".scr", ".sys", ".mui", ".cpl"}
-
-    match_data = {}
-    if not os.path.splitext(file_path)[-1].lower() in suffix:
-        return match_data
     try:
-        with pefile.PE(file_path, fast_load=True) as pe:
-            for section in pe.sections:
-                name = section.Name.rstrip(b'\x00').decode('latin1').lower()
-                data = section.get_data()
-                if data:
-                    match_data[name] = section.get_data()
-    except pefile.PEFormatError:
+        file_content = None
+        if not os.path.splitext(file_path)[-1].lower() in suffix:
+            return file_content
         with open(file_path, 'rb') as f:
             file_content = f.read()
-        if is_text_file(file_content):
-            match_data[os.path.splitext(file_path)[-1].lower()] = file_content
-    return match_data
+    except:
+        pass
+    return file_content
 
 ####################################################################################################
 
@@ -49,14 +33,17 @@ def file_to_images(input_dir, output_dir):
         for file in files:
             try:
                 file_path = os.path.join(root, file)
-                for name, data in get_type(file_path).items():
-                    print(name, file_path)
+                file_content = get_type(file_path)
+                if file_content:
+                    print(file_path)
                     relative_path = os.path.relpath(root, input_dir)
                     output_path_dir = os.path.join(output_dir, relative_path)
+
                     if not os.path.exists(output_path_dir):
                         os.makedirs(output_path_dir)
-                    image = preprocess_image(data, (224, 224))
-                    image.save(os.path.join(output_path_dir, f"{name}_{file}.png"))
+                    image = preprocess_image(file_content, (224, 224))
+                    safe_name = os.path.basename(file_path).replace('/', '_').replace('\\', '_')
+                    image.save(os.path.join(output_path_dir, f"{safe_name}.png"))
             except Exception as e:
                 print(e)
 

Engine/Model/train.py

@@ -117,7 +117,7 @@ def build_model(input_shape, num_classes):
 
 ####################################################################################################
 
-def calculate_lr_cosine_sq(epoch, total_epochs=25, lr_start=5e-4, lr_end=1e-6):
+def calculate_lr_cosine_sq(epoch, total_epochs=30, lr_start=5e-4, lr_end=5e-7):
     cos_val = 0.5 * (1 + numpy.cos(epoch / total_epochs * numpy.pi))
     return lr_end + (lr_start - lr_end) * (cos_val ** 2)
 
@@ -142,7 +142,7 @@ class CustomModelCheckpoint(callbacks.Callback):
 
 ####################################################################################################
 
-train_ds, val_ds = load_dataset(r'.\Image_File_Pefile')
+train_ds, val_ds = load_dataset(r'.\Image_Full_Pefile')
 for imgs, _ in train_ds.take(1):
     train_ds.image_shape = imgs.shape[1:]
     break
@@ -159,5 +159,5 @@ model.compile(optimizer='adam', loss=categorical_focal_loss(gamma=2.0, alpha=0.2
     metrics=['accuracy', metrics.Precision(name='precision'), metrics.Recall(name='recall'),
     metrics.FalsePositives(name='fp'), metrics.TrueNegatives(name='tn')])
 
-model.fit(train_ds, epochs=25, callbacks=[CustomModelCheckpoint(), callbacks.LearningRateScheduler(lr_scheduler)], validation_data=val_ds)
+model.fit(train_ds, epochs=30, callbacks=[CustomModelCheckpoint(), callbacks.LearningRateScheduler(lr_scheduler)], validation_data=val_ds)
 input('Training Complete')

PYAS.py

@@ -1,7 +1,7 @@
-import os, gc, re, sys, time, json, shutil
+import os, gc, re, sys, time, json, uuid, queue
 import ctypes, ctypes.wintypes, threading
 import requests, webbrowser, winreg, msvcrt
-import traceback, hashlib
+import traceback, hashlib, subprocess, shutil
 
 from PYAS_Config import *
 from PYAS_Engine import *
@@ -13,7 +13,7 @@ from PySide6.QtGui import *
 
 ####################################################################################################
 
-class PROCESSENTRY32(ctypes.Structure):
+class PROCESSENTRY32W(ctypes.Structure):
     _fields_ = [
         ("dwSize", ctypes.wintypes.DWORD),
         ("cntUsage", ctypes.wintypes.DWORD),
@@ -22,8 +22,9 @@ class PROCESSENTRY32(ctypes.Structure):
         ("th32ModuleID", ctypes.wintypes.DWORD),
         ("cntThreads", ctypes.wintypes.DWORD),
         ("th32ParentProcessID", ctypes.wintypes.DWORD),
+        ("pcPriClassBase", ctypes.wintypes.LONG),
         ("dwFlags", ctypes.wintypes.DWORD),
-        ("szExeFile", ctypes.wintypes.CHAR * 260)]
+        ("szExeFile", ctypes.wintypes.WCHAR * 260)]
 
 class MIB_TCPROW_OWNER_PID(ctypes.Structure):
     _fields_ = [
@@ -62,8 +63,7 @@ class PROCESS_BASIC_INFORMATION(ctypes.Structure):
         ("PebBaseAddress", ctypes.wintypes.LPVOID),
         ("Reserved2", ctypes.wintypes.LPVOID * 2),
         ("UniqueProcessId", ctypes.wintypes.LPVOID),
-        ("Reserved3", ctypes.wintypes.LPVOID)
-    ]
+        ("Reserved3", ctypes.wintypes.LPVOID)]
 
 class UNICODE_STRING(ctypes.Structure):
     _fields_ = [
@@ -71,6 +71,22 @@ class UNICODE_STRING(ctypes.Structure):
         ("MaximumLength", ctypes.wintypes.USHORT),
         ("Buffer", ctypes.c_void_p)]
 
+class FILTER_MESSAGE_HEADER(ctypes.Structure):
+    _fields_ = [
+        ("ReplyLength", ctypes.wintypes.ULONG),
+        ("MessageId", ctypes.c_uint64)]
+
+class PYAS_MESSAGE(ctypes.Structure):
+    _fields_ = [
+        ("MessageCode", ctypes.wintypes.ULONG),
+        ("ProcessId", ctypes.wintypes.ULONG),
+        ("Path", ctypes.wintypes.WCHAR * 1024)]
+
+class PYAS_FULL_MESSAGE(ctypes.Structure):
+    _fields_ = [
+        ("Header", FILTER_MESSAGE_HEADER),
+        ("Data", PYAS_MESSAGE)]
+
 ####################################################################################################
 
 class MainWindow_Controller(QMainWindow):
@@ -78,7 +94,10 @@ class MainWindow_Controller(QMainWindow):
     scan_add_virus_signal = Signal(str)
     scan_result_signal = Signal(str)
     scan_reset_signal = Signal()
+    scan_update_signal = Signal(str, str)
+    scan_remove_signal = Signal(str)
     progress_title_signal = Signal(str)
+    init_log_signal = Signal(str)
 
     def __init__(self):
         super().__init__()
@@ -89,11 +108,6 @@ class MainWindow_Controller(QMainWindow):
         self.load_config()
         self.init_interface()
         self.init_windll()
-        self.backup_mbr()
-        self.relock_file()
-        self.init_whitelist()
-        self.init_thread()
-        self.init_connect()
         self.show_startup()
 
 ####################################################################################################
@@ -107,9 +121,10 @@ class MainWindow_Controller(QMainWindow):
         self.sign = sign_scanner()
         self.sign.init_windll(["wintrust"])
         self.model = model_scanner()
-        self.model.load_path(self.path_models)
         self.rule = rule_scanner()
-        self.rule.load_path(self.path_rules)
+        self.cloud = cloud_scanner()
+        self.cloud_queue = queue.Queue()
+        self.init_cloud_worker()
 
         self.mouse_flag = 0
         self.mouse_pos = 0
@@ -129,11 +144,14 @@ class MainWindow_Controller(QMainWindow):
             "traditional_switch", "simplified_switch", "english_switch",
         ]
         self.pyas_default = {
-            "version": "3.3.7",
-            "product": "00000-00000-00000-00000-00000",
+            "version": "3.3.8",
+            "api_host": "https://pyas-security.com/",
+            "api_key": "",
+            "suffix": [".com", ".dll", ".drv", ".exe", ".ocx", ".scr", ".sys", ".mui", ".cpl"],
+            "size": 256 * 1024 * 1024,
+            "sensitive": 95,
             "language": "english_switch",
             "theme": "white_switch",
-            "sensitive": 90,
             "process_switch": True,
             "document_switch": True,
             "system_switch": True,
@@ -187,7 +205,7 @@ class MainWindow_Controller(QMainWindow):
 ####################################################################################################
 
     def init_windll(self):
-        for name in ["ntdll", "Psapi", "user32", "kernel32", "advapi32", "iphlpapi", "shell32"]:
+        for name in ["ntdll", "Psapi", "user32", "kernel32", "advapi32", "iphlpapi", "shell32", "fltlib"]:
             try:
                 setattr(self, name.lower(), ctypes.WinDLL(name, use_last_error=True))
             except Exception as e:
@@ -200,8 +218,7 @@ class MainWindow_Controller(QMainWindow):
             ctypes.wintypes.HANDLE, ctypes.c_wchar_p, ctypes.c_wchar_p, ctypes.wintypes.DWORD,
             ctypes.wintypes.DWORD, ctypes.wintypes.DWORD, ctypes.wintypes.DWORD, ctypes.c_wchar_p,
             ctypes.c_wchar_p, ctypes.POINTER(ctypes.wintypes.DWORD), ctypes.c_wchar_p, ctypes.c_wchar_p,
-            ctypes.c_wchar_p
-        ]
+            ctypes.c_wchar_p]
         self.advapi32.CreateServiceW.restype = ctypes.wintypes.HANDLE
 
         self.advapi32.OpenServiceW.argtypes = [ctypes.wintypes.HANDLE, ctypes.c_wchar_p, ctypes.wintypes.DWORD]
@@ -225,6 +242,11 @@ class MainWindow_Controller(QMainWindow):
         self.shell32.CommandLineToArgvW.argtypes = [ctypes.wintypes.LPCWSTR, ctypes.POINTER(ctypes.c_int)]
         self.shell32.CommandLineToArgvW.restype = ctypes.POINTER(ctypes.wintypes.LPWSTR)
 
+        self.fltlib.FilterConnectCommunicationPort.argtypes = [ctypes.wintypes.LPCWSTR, ctypes.wintypes.DWORD, ctypes.c_void_p, ctypes.wintypes.DWORD, ctypes.c_void_p, ctypes.POINTER(ctypes.wintypes.HANDLE)]
+        self.fltlib.FilterConnectCommunicationPort.restype = ctypes.c_long
+        self.fltlib.FilterGetMessage.argtypes = [ctypes.wintypes.HANDLE, ctypes.c_void_p, ctypes.wintypes.DWORD, ctypes.c_void_p]
+        self.fltlib.FilterGetMessage.restype = ctypes.c_long
+
 ####################################################################################################
 
     def save_config(self, file_path, config):
@@ -270,6 +292,16 @@ class MainWindow_Controller(QMainWindow):
             self.pyas_config[key] = []
         return self.pyas_config[key]
 
+####################################################################################################
+
+    def init_engine_thread(self):
+        try:
+            self.rule.load_path(self.path_rules, callback=lambda x: self.init_log_signal.emit(os.path.basename(x)))
+            self.model.load_path(self.path_models, callback=lambda x: self.init_log_signal.emit(os.path.basename(x)))
+            self.init_log_signal.emit("引擎加載完成")
+        except Exception as e:
+            self.send_message(e, "warn", False)
+
 ####################################################################################################
 
     def init_interface(self):
@@ -313,7 +345,10 @@ class MainWindow_Controller(QMainWindow):
         self.scan_add_virus_signal.connect(self.slot_scan_add_virus)
         self.scan_result_signal.connect(self.slot_scan_result)
         self.scan_reset_signal.connect(self.slot_scan_reset)
+        self.scan_update_signal.connect(self.slot_scan_update)
+        self.scan_remove_signal.connect(self.slot_scan_remove)
         self.progress_title_signal.connect(self.slot_progress_title)
+        self.init_log_signal.connect(self.slot_init_log)
 
         for name, widget in self.widgets.items():
             if hasattr(widget, "setCheckable") and widget.isCheckable():
@@ -357,7 +392,7 @@ class MainWindow_Controller(QMainWindow):
     def save_state(self, name, checked):
         self.pyas_config[name] = bool(checked)
         if name == "sensitive_switch":
-            self.pyas_config["sensitive"] = 0 if checked else 90
+            self.pyas_config["sensitive"] = 0 if checked else 95
         elif name == "extension_switch":
             pass
         elif name == "process_switch":
@@ -572,12 +607,19 @@ class MainWindow_Controller(QMainWindow):
     def show_startup(self):
         try:
             if self.singleton_mutex("pyas_security"):
+                self.backup_mbr()
+                self.relock_file()
+                self.init_whitelist()
+                self.init_thread()
+                self.init_connect()
+
                 param = ""
                 if self.args_pyas:
                     param = self.args_pyas[0].replace("/", "-")
                 if "-h" not in param:
                     self.show_button()
                 self.apply_settings()
+                self.start_daemon_thread(self.init_engine_thread)
             else:
                 sys.exit(0)
         except Exception as e:
@@ -614,20 +656,16 @@ class MainWindow_Controller(QMainWindow):
     def reset_button(self):
         if self.send_message("您確定要重置所有設定嗎?", "quest", True):
             self.pyas_config = self.pyas_default.copy()
-            self.restart_button()
-
-    def restart_button(self):
-        self.save_config(self.file_config, self.pyas_config)
-        self.minimize_button()
-        while self.isVisible():
-            QApplication.processEvents()
-        os.execl(self.python, self.python, *sys.argv)
+            self.close_button()
 
     def singleton_mutex(self, name):
-        mutex = self.kernel32.CreateMutexW(None, False, name)
-        if self.kernel32.GetLastError() == 183:
+        try:
+            self.h_mutex = self.kernel32.CreateMutexW(None, False, name)
+            if self.kernel32.GetLastError() == 183:
+                return False
+            return True
+        except Exception:
             return False
-        return True
 
 ####################################################################################################
 
@@ -747,6 +785,23 @@ class MainWindow_Controller(QMainWindow):
         self.widgets["method_button"].show()
         self.send_message(msg, "notify", True)
 
+    @Slot(str)
+    def slot_init_log(self, text):
+        self.send_message(text, "load", True)
+        
+    @Slot(str, str)
+    def slot_scan_update(self, old_text, new_text):
+        items = self.widgets["virus_list"].findItems(old_text, Qt.MatchExactly)
+        if items:
+            items[0].setText(new_text)
+
+    @Slot(str)
+    def slot_scan_remove(self, text):
+        items = self.widgets["virus_list"].findItems(text, Qt.MatchExactly)
+        if items:
+            row = self.widgets["virus_list"].row(items[0])
+            self.widgets["virus_list"].takeItem(row)
+
 ####################################################################################################
 
     def init_scan(self):
@@ -794,10 +849,16 @@ class MainWindow_Controller(QMainWindow):
                         continue
                     self.scan_count += 1
 
-                    state = self.scan_engine(norm_path)
-                    if state:
+                    suffix = self.pyas_config.get("suffix", [".com", ".dll", ".drv", ".exe", ".ocx", ".scr", ".sys", ".mui"])
+                    ext = os.path.splitext(file_path)[-1].lower()
+                    if ext not in suffix:
+                        continue
+
+                    result = self.scan_engine(norm_path)
+                    if result:
                         self.virus_results.append(norm_path)
-                        self.scan_add_virus_signal.emit(f"[{state}] > {norm_path}")
+                        self.scan_add_virus_signal.emit(f"[{result}] > {norm_path}")
+                        self.start_daemon_thread(self.cloud_check, norm_path)
 
                     lang = self.pyas_config.get("language", "english_switch")
                     self.progress_title_signal.emit(self.trans(lang, "正在掃描"))
@@ -829,21 +890,83 @@ class MainWindow_Controller(QMainWindow):
 
     def scan_engine(self, file_path):
         try:
-            if self.sign.sign_verify(file_path):
-                return False
+            result = False
 
             label, level = self.model.model_scan(file_path)
-            if label and level >= self.pyas_config.get("sensitive", 90):
-                return f"{label}.{level}"
+            if label and level >= self.pyas_config.get("sensitive", 95):
+                if not self.sign.sign_verify(file_path):
+                    result = f"{label}.{level}"
 
             if self.pyas_config.get("extension_switch", False):
-                label, level = self.rule.yara_scan(file_path)
-                if label and level:
-                    return f"{label}.{level}"
-            return False
+                types, detail = self.rule.yara_scan(file_path)
+                if types and detail:
+                    result = f"{types}.{detail}"
+
+            return result
         except Exception as e:
             self.send_message(e, "warn", False)
-            return None
+        return False
+
+####################################################################################################
+
+    def init_cloud_worker(self):
+        for _ in range(1):
+            t = threading.Thread(target=self.cloud_worker, daemon=True)
+            t.start()
+
+    def cloud_worker(self):
+        while True:
+            try:
+                file_path = self.cloud_queue.get()
+                self.perform_cloud_scan(file_path)
+                self.cloud_queue.task_done()
+            except Exception:
+                pass
+
+    def cloud_check(self, file_path, get_result=False):
+        if get_result:
+            return self.perform_cloud_scan(file_path, get_result=True)
+        self.cloud_queue.put(file_path)
+
+    def perform_cloud_scan(self, file_path, get_result=False):
+        was_locked = False
+        try:
+            if not os.path.exists(file_path):
+                return False
+
+            if file_path in self.virus_lock:
+                self.lock_file(file_path, False)
+                was_locked = True
+
+            size = os.path.getsize(file_path)
+            if size > self.pyas_config.get("size", 256 * 1024 * 1024):
+                if was_locked:
+                    self.lock_file(file_path, True)
+                return False
+
+            api_host = self.pyas_config.get("api_host", "https://pyas-security.com/")
+            api_key = self.pyas_config.get("api_key", "")
+            success, sha256 = self.cloud.upload_file(file_path, api_host, api_key)
+
+            if was_locked:
+                self.lock_file(file_path, True)
+                was_locked = False
+
+            if success and sha256:
+                if get_result:
+                    return self.cloud.get_result(sha256, api_host, api_key)
+            else:
+                self.send_message(f"雲端服務 | 通訊服務錯誤 | None | {file_path} | None", "warn", True)
+
+        except Exception as e:
+            self.send_message(e, "warn", False)
+        finally:
+            if 'was_locked' in locals() and was_locked:
+                try:
+                    self.lock_file(file_path, True)
+                except Exception:
+                    pass
+        return False
 
 ####################################################################################################
 
@@ -934,7 +1057,7 @@ class MainWindow_Controller(QMainWindow):
                     self.send_message(f"成功增加到白名單，共 {n} 個檔案", "info", True)
                     widget.takeItem(widget.row(item))
                     self.virus_results.remove(file_path)
-                except:
+                except Exception as e:
                     self.send_message(e, "warn", False)
 
         elif act == quarantine_action:
@@ -945,7 +1068,7 @@ class MainWindow_Controller(QMainWindow):
                     self.send_message(f"成功增加到隔離區，共 {n} 個檔案", "info", True)
                     widget.takeItem(widget.row(item))
                     self.virus_results.remove(file_path)
-                except:
+                except Exception as e:
                     self.send_message(e, "warn", False)
 
         count = len(self.virus_results)
@@ -956,7 +1079,7 @@ class MainWindow_Controller(QMainWindow):
     def list_process(self):
         pe = self.get_process_entry()
         snapshot = self.kernel32.CreateToolhelp32Snapshot(0x00000002, 0)
-        result, success = [], self.kernel32.Process32First(snapshot, ctypes.byref(pe))
+        result, success = [], self.kernel32.Process32FirstW(snapshot, ctypes.byref(pe))
 
         while success:
             pid = pe.th32ProcessID
@@ -964,15 +1087,13 @@ class MainWindow_Controller(QMainWindow):
             if pid > 4:
                 name, file_path = self.get_exe_info(pid)
             if not name:
-                raw = bytes(pe.szExeFile).split(b"\x00", 1)[0]
-                if raw:
-                    try:
-                        name = raw.decode("mbcs", errors="replace") or None
-                    except Exception:
-                        name = None
+                try:
+                    name = pe.szExeFile
+                except Exception:
+                    name = None
 
             result.append((pid, name, file_path))
-            success = self.kernel32.Process32Next(snapshot, ctypes.byref(pe))
+            success = self.kernel32.Process32NextW(snapshot, ctypes.byref(pe))
         self.kernel32.CloseHandle(snapshot)
         return result
 
@@ -1044,21 +1165,21 @@ class MainWindow_Controller(QMainWindow):
             self.kill_process(pid)
 
         elif act == white_action:
-            file_path = self.norm_path(path)
-            if file_path and self.send_message("您確定要增加到白名單嗎?", "quest"):
+            target_path = self.norm_path(file_path)
+            if target_path and self.send_message("您確定要增加到白名單嗎?", "quest"):
                 try:
-                    n = self.manage_named_list("white_list", [file_path], action="add", with_hash=True)
+                    n = self.manage_named_list("white_list", [target_path], action="add", with_hash=True)
                     self.send_message(f"成功增加到白名單，共 {n} 個檔案", "info", True)
-                except:
+                except Exception as e:
                     self.send_message(e, "warn", False)
 
         elif act == quarantine_action:
-            file_path = self.norm_path(path)
-            if file_path and self.send_message("您確定要增加到隔離區嗎?", "quest"):
+            target_path = self.norm_path(file_path)
+            if target_path and self.send_message("您確定要增加到隔離區嗎?", "quest"):
                 try:
-                    n = self.manage_named_list("quarantine", [file_path], action="add", with_hash=True, lock_func=self.lock_file)
+                    n = self.manage_named_list("quarantine", [target_path], action="add", with_hash=True, lock_func=self.lock_file)
                     self.send_message(f"成功增加到隔離區，共 {n} 個檔案", "info", True)
-                except:
+                except Exception as e:
                     self.send_message(e, "warn", False)
 
     def kill_process(self, pid):
@@ -1286,6 +1407,35 @@ class MainWindow_Controller(QMainWindow):
         except Exception as e:
             self.send_message(e, "warn", False)
 
+####################################################################################################
+
+    def check_process_survival(self):
+        target_map = {
+            "explorer.exe": "explorer.exe"
+        }
+        try:
+            running = set()
+            pe = self.get_process_entry()
+            snapshot = self.kernel32.CreateToolhelp32Snapshot(0x00000002, 0)
+            if self.kernel32.Process32FirstW(snapshot, ctypes.byref(pe)):
+                while True:
+                    try:
+                        name = pe.szExeFile.lower()
+                        running.add(name)
+                    except:
+                        pass
+                    if not self.kernel32.Process32NextW(snapshot, ctypes.byref(pe)):
+                        break
+            self.kernel32.CloseHandle(snapshot)
+
+            for name, cmd in target_map.items():
+                if name.lower() not in running:
+                    subprocess.Popen(cmd, shell=True)
+                    self.send_message(f"系統防護 | 系統進程重啟 | None | None | {name}", "notify", True)
+
+        except Exception as e:
+            self.send_message(e, "warn", False)
+
 ####################################################################################################
 
     def popup_button(self):
@@ -1407,19 +1557,19 @@ class MainWindow_Controller(QMainWindow):
         if name:
             return name
         snapshot = self.kernel32.CreateToolhelp32Snapshot(0x00000002, 0)
-        entry = PROCESSENTRY32()
-        entry.dwSize = ctypes.sizeof(PROCESSENTRY32)
+        entry = PROCESSENTRY32W()
+        entry.dwSize = ctypes.sizeof(PROCESSENTRY32W)
 
         result = ""
-        if self.kernel32.Process32First(snapshot, ctypes.byref(entry)):
+        if self.kernel32.Process32FirstW(snapshot, ctypes.byref(entry)):
             while True:
                 if entry.th32ProcessID == pid:
                     try:
-                        result = entry.szExeFile.decode("mbcs").rstrip("\x00")
+                        result = entry.szExeFile
                     except Exception:
                         result = ""
                     break
-                if not self.kernel32.Process32Next(snapshot, ctypes.byref(entry)):
+                if not self.kernel32.Process32NextW(snapshot, ctypes.byref(entry)):
                     break
         self.kernel32.CloseHandle(snapshot)
         return result
@@ -1632,7 +1782,8 @@ class MainWindow_Controller(QMainWindow):
                     continue
                 if self.scan_engine(file_path):
                     self.kernel32.TerminateProcess(h, 0)
-                    self.send_message(f"進程防護 | 靜態掃描攔截 | {pid} | {file_path} | None", "notify", True)
+                    self.send_message(f"進程防護 | 靜態掃描攔截 | {pid} | None | {file_path}", "notify", True)
+                self.start_daemon_thread(self.cloud_check, file_path)
 
             self.suspend_process(h, False)
             self.kernel32.CloseHandle(h)
@@ -1658,10 +1809,10 @@ class MainWindow_Controller(QMainWindow):
     def get_process_list(self):
         exist_process, pe = set(), self.get_process_entry()
         hSnapshot = self.kernel32.CreateToolhelp32Snapshot(0x00000002, 0)
-        if self.kernel32.Process32First(hSnapshot, ctypes.byref(pe)):
+        if self.kernel32.Process32FirstW(hSnapshot, ctypes.byref(pe)):
             while True:
                 exist_process.add(pe.th32ProcessID)
-                if not self.kernel32.Process32Next(hSnapshot, ctypes.byref(pe)):
+                if not self.kernel32.Process32NextW(hSnapshot, ctypes.byref(pe)):
                     break
         self.kernel32.CloseHandle(hSnapshot)
         return exist_process
@@ -1673,8 +1824,8 @@ class MainWindow_Controller(QMainWindow):
         return ""
 
     def get_process_entry(self):
-        pe = PROCESSENTRY32()
-        pe.dwSize = ctypes.sizeof(PROCESSENTRY32)
+        pe = PROCESSENTRY32W()
+        pe.dwSize = ctypes.sizeof(PROCESSENTRY32W)
         return pe
 
     def get_exe_info(self, pid):
@@ -1778,10 +1929,17 @@ class MainWindow_Controller(QMainWindow):
 
                 file_path = self.norm_path(os.path.join(self.path_user, raw_filename), must_exist=True)
                 if file_path and notify.Action in [2, 3, 4] and not self.is_in_whitelist(file_path):
+
+                    suffix = self.pyas_config.get("suffix", [".com", ".dll", ".drv", ".exe", ".ocx", ".scr", ".sys", ".mui"])
+                    ext = os.path.splitext(file_path)[-1].lower()
+                    if ext not in suffix:
+                        continue
+
                     state = self.scan_engine(file_path)
                     if state:
                         self.add_to_quarantine([file_path])
-                        self.send_message(f"檔案防護 | 靜態掃描攔截 | None | {file_path} | None", "notify", True)
+                        self.send_message(f"檔案防護 | 靜態掃描攔截 | None | None | {file_path}", "notify", True)
+                        self.start_daemon_thread(self.cloud_check, file_path)
             except Exception as e:
                 self.send_message(e, "warn", False)
         self.kernel32.CloseHandle(hDir)
@@ -1858,97 +2016,100 @@ class MainWindow_Controller(QMainWindow):
                 self.repair_system_file_type()
                 self.repair_system_file_icon()
                 self.repair_system_image()
-                time.sleep(0.2)
+                self.check_process_survival()
+                time.sleep(0.5)
             except Exception as e:
                 self.send_message(e, "warn", False)
 
 ####################################################################################################
 
     def install_system_driver(self):
-        service_name = "PYAS_Driver"
-        scm = self.advapi32.OpenSCManagerW(None, None, 0xF003F)
-        if not scm:
+        try:
+            service_name = "PYAS_Driver"
+            bin_path = self.path_drivers
+            cmd = [
+                "sc", "create", service_name,
+                f"binPath={bin_path}",
+                "type=kernel",
+                "start=demand",
+                "error=normal",
+                "depend=FltMgr",
+                "group=\"FSFilter Activity Monitor\""]
+            subprocess.run(cmd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, shell=True)
+
+            key_path = r"SYSTEM\CurrentControlSet\Services\PYAS_Driver\Instances"
+            with winreg.CreateKey(winreg.HKEY_LOCAL_MACHINE, key_path) as key:
+                winreg.SetValueEx(key, "DefaultInstance", 0, winreg.REG_SZ, "PYAS Instance")
+
+            with winreg.CreateKey(winreg.HKEY_LOCAL_MACHINE, rf"{key_path}\PYAS Instance") as key:
+                winreg.SetValueEx(key, "Altitude", 0, winreg.REG_SZ, "320000")
+                winreg.SetValueEx(key, "Flags", 0, winreg.REG_DWORD, 0)
+
+            subprocess.run(["sc", "start", service_name], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, shell=True)
+            return True
+        except Exception as e:
+            self.send_message(e, "warn", False)
             return False
 
-        svc = self.advapi32.CreateServiceW(scm, service_name, service_name, 0xF01FF, 
-            0x00000001, 0x00000003, 0x00000001, self.path_drivers, None, None, None, None, None)
-        if not svc:
-            svc = self.advapi32.OpenServiceW(scm, service_name, 0xF01FF)
-            if not svc:
-                self.advapi32.CloseServiceHandle(scm)
-                return False
-
-        res = self.advapi32.StartServiceW(svc,0,None)
-        self.advapi32.CloseServiceHandle(svc)
-        self.advapi32.CloseServiceHandle(scm)
-        return bool(res)
-
     def stop_system_driver(self):
-        service_name = "PYAS_Driver"
-        scm = self.advapi32.OpenSCManagerW(None, None, 0xF003F)
-        if not scm:
+        try:
+            service_name = "PYAS_Driver"
+            subprocess.run(["sc", "stop", service_name], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, shell=True)
+            subprocess.run(["sc", "delete", service_name], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, shell=True)
+            return True
+        except Exception:
             return False
 
-        svc = self.advapi32.OpenServiceW(scm, service_name, 0xF01FF)
-        if not svc:
-            self.advapi32.CloseServiceHandle(scm)
-            return False
-
-        status = SERVICE_STATUS()
-        self.advapi32.ControlService(svc, 0x00000001, ctypes.byref(status))
-        self.advapi32.DeleteService(svc)
-        self.advapi32.CloseServiceHandle(svc)
-        self.advapi32.CloseServiceHandle(scm)
-        return True
-
 ####################################################################################################
 
     def pipe_server_thread(self):
-        pipe_path = r"\\.\pipe\PYAS_Output_Pipe"
-        PIPE_BUF_SIZE = 65536
+        try:
+            port_name = "\\PYAS_Output_Pipe"
+            h_port = ctypes.wintypes.HANDLE()
 
-        while self.pyas_config.get("driver_switch", False):
-            try:
-                hPipe = self.kernel32.CreateNamedPipeW(pipe_path, 0x00000001, 0x00000004 | 0x00000002, 1, PIPE_BUF_SIZE, PIPE_BUF_SIZE, 0, None)
-                if hPipe == ctypes.c_void_p(-1).value:
-                    time.sleep(0.2)
-                    continue
+            while self.pyas_config.get("driver_switch", False):
+                hr = self.fltlib.FilterConnectCommunicationPort(port_name, 0, None, 0, None, ctypes.byref(h_port))
+                if hr == 0:
+                    message = PYAS_FULL_MESSAGE()
 
-                while self.pyas_config.get("driver_switch", False):
-                    if not self.kernel32.ConnectNamedPipe(hPipe, None) and self.kernel32.GetLastError() != 535:
-                        time.sleep(0.2)
-                        continue
+                    while self.pyas_config.get("driver_switch", False):
+                        hr_get = self.fltlib.FilterGetMessage(h_port, ctypes.byref(message), ctypes.sizeof(PYAS_FULL_MESSAGE), None)
+                        if hr_get == 0:
+                            code = message.Data.MessageCode
+                            pid = message.Data.ProcessId
+                            raw_path = self.get_exe_info(pid)[1]
+                            target = message.Data.Path
 
-                    buf = ctypes.create_string_buffer(PIPE_BUF_SIZE)
-                    bytes_read = ctypes.c_ulong(0)
-                    if not self.kernel32.ReadFile(hPipe, buf, PIPE_BUF_SIZE, ctypes.byref(bytes_read), None) or bytes_read.value == 0:
-                        self.kernel32.DisconnectNamedPipe(hPipe)
-                        time.sleep(0.2)
-                        continue
+                            rule_name = "Unknown"
+                            if code == 2001:
+                                rule_name = "FILE_BLOCK"
+                            elif code == 3001:
+                                rule_name = "REG_BLOCK"
+                            elif code == 4001:
+                                rule_name = "BOOT_BLOCK"
+                            elif code == 5001:
+                                rule_name = "RANSOM_BLOCK"
+                            elif code == 6001:
+                                rule_name = "INJECT_BLOCK"
 
-                    msg = buf.raw[:bytes_read.value].decode("utf-8", errors="ignore")
-                    parts = [p.strip() for p in msg.split("|", 3)]
-                    if len(parts) == 4:
-                        rules, pid, raw_path, target = parts
-                        for old, new in self.block_replace.items():
-                            rules = rules.replace(old, new)
-                        self.send_message(f"驅動防護 | {rules} | {pid} | {raw_path} | {target}", "notify", True)
+                            display_rule = self.block_replace.get(rule_name, rule_name)
+                            self.send_message(f"驅動防護 | {display_rule} | {pid} | {raw_path} | {target}", "notify", True)
+                            
 
-                        file_path = self.norm_path(self.device_path_to_drive(raw_path))
-                        if not self.is_in_whitelist(file_path) and not self.sign.sign_verify(file_path):
-                            try:
-                                h = self.kernel32.OpenProcess(0x1F0FFF, False, int(pid.strip()))
-                                if h:
-                                    self.kernel32.TerminateProcess(h, 0)
-                                    self.kernel32.CloseHandle(h)
-                            except Exception as e:
-                                self.send_message(e, "warn", False)
-
-                    self.kernel32.DisconnectNamedPipe(hPipe)
-                self.kernel32.CloseHandle(hPipe)
-            except Exception as e:
-                self.send_message(e, "warn", False)
-                time.sleep(0.5)
+                            if code in [4001, 5001]:
+                                try:
+                                    h = self.kernel32.OpenProcess(0x1F0FFF, False, pid)
+                                    if h:
+                                        self.kernel32.TerminateProcess(h, 0)
+                                        self.kernel32.CloseHandle(h)
+                                except:
+                                    pass
+                        else:
+                            break
+                    self.kernel32.CloseHandle(h_port)
+                time.sleep(0.2)
+        except Exception as e:
+            self.send_message(e, "warn", False)
 
 ####################################################################################################
 

PYAS_Config.py

@@ -24,7 +24,7 @@ translate_dict = {
 
     "english_switch": {"開啟":"On","關閉":"Off","开启":"On","关闭":"Off","，":", ",
               "立即刪除":"Delete Now","安全模式":"Safe Mode","官方網站":"Official Website ",
-              "腳本":"Script ","鏈式":"Chain ","記憶體":"Memory ","加載":"Load ",
+              "腳本":"Script ","鏈式":"Chain ","記憶體":"Memory ","正在加載":"Loading ","加載":"Load ",
               "行為":"Behavior ","可疑":"Suspicious ","勒索":"Ransom ","主要":"Main ",
               "許可條款":"License Terms ","惡意":"Malicious", "開發":"Developers ",
               "啟用":"Enable ","禁用":"Disable ","正在初始化中":"Initializing ",

PYAS_Engine.py

@@ -1,5 +1,6 @@
-import os, yara, numpy, base64, onnxruntime
-import ctypes, ctypes.wintypes, pefile
+import os, yara, time, numpy, base64, requests
+import ctypes, ctypes.wintypes, hashlib, onnxruntime
+
 from PIL import Image
 from io import BytesIO
 
@@ -45,61 +46,85 @@ class sign_scanner:
         for name in path:
             try:
                 setattr(self, name.lower(), ctypes.WinDLL(name, use_last_error=True))
-            except Exception as e:
-                self.send_message(e, "warn", False)
+            except Exception:
+                pass
 
-        self.WinVerifyTrust = self.wintrust.WinVerifyTrust
-        self.WinVerifyTrust.restype = ctypes.wintypes.LONG
-        self.WinVerifyTrust.argtypes = [ctypes.wintypes.HWND, ctypes.POINTER(GUID), ctypes.c_void_p]
-
-    def is_sign(self, file_path):
-        with pefile.PE(file_path, fast_load=True) as pe:
-            sec_dir = pe.OPTIONAL_HEADER.DATA_DIRECTORY[pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_SECURITY']]
-            return sec_dir.VirtualAddress != 0 and sec_dir.Size > 0
+        try:
+            self.WinVerifyTrust = self.wintrust.WinVerifyTrust
+            self.WinVerifyTrust.restype = ctypes.wintypes.LONG
+            self.WinVerifyTrust.argtypes = [ctypes.wintypes.HWND, ctypes.POINTER(GUID), ctypes.c_void_p]
+        except Exception:
+            pass
 
     def sign_verify(self, file_path):
-        fi = WINTRUST_FILE_INFO(ctypes.sizeof(WINTRUST_FILE_INFO), file_path, None, None)
-        data = WINTRUST_DATA(ctypes.sizeof(WINTRUST_DATA), None, None, 2, 0, 1,
-            ctypes.pointer(fi), 1, None, None, 0, 0, None)
-        s = self.WinVerifyTrust(None, ctypes.byref(self.verify), ctypes.byref(data))
-        data.dwStateAction = 2
-        self.WinVerifyTrust(None, ctypes.byref(self.verify), ctypes.byref(data))
-        return s == 0
+        try:
+            fi = WINTRUST_FILE_INFO(ctypes.sizeof(WINTRUST_FILE_INFO), file_path, None, None)
+            data = WINTRUST_DATA(ctypes.sizeof(WINTRUST_DATA), None, None, 2, 0, 1,
+                ctypes.pointer(fi), 1, None, None, 0, 0, None)
+            s = self.WinVerifyTrust(None, ctypes.byref(self.verify), ctypes.byref(data))
+            data.dwStateAction = 2
+            self.WinVerifyTrust(None, ctypes.byref(self.verify), ctypes.byref(data))
+            return s == 0
+        except Exception:
+            return False
 
 ####################################################################################################
 
 class rule_scanner:
     def __init__(self):
-        self.rules = {}
+        self.rules = None
         self.network = []
 
-    def load_path(self, path):
+    def load_path(self, path, callback=None):
+        yara_files = {}
         for root, _, files in os.walk(path):
             for file in files:
-                self.load_file(os.path.join(root, file))
+                full_path = os.path.join(root, file)
+                if callback:
+                    callback(full_path)
+                ext = os.path.splitext(file)[1].lower()
+                if ext in ('.yara', '.yar'):
+                    namespace = os.path.relpath(full_path, path).replace(os.sep, '_')
+                    yara_files[namespace] = full_path
+                elif ext in ('.yc', '.yrc'):
+                    self.load_compiled_rule(full_path)
+                elif ext in ('.ip', '.txt'):
+                    self.load_network_list(full_path)
 
-    def load_file(self, file):
-        ext = os.path.splitext(file)[1].lower()
+        if yara_files:
+            self.compile_all_rules(yara_files)
+
+    def load_compiled_rule(self, file):
         try:
-            if ext in ('.yara', '.yar'):
-                self.rules[file] = yara.compile(file)
-            elif ext in ('.yc', '.yrc'):
-                self.rules[file] = yara.load(file)
-            elif ext in ('.ip', '.txt'):
-                with open(file, "r", encoding="utf-8", errors="ignore") as f:
-                    self.network.extend(line.strip() for line in f if line.strip())
+            self.rules = yara.load(file)
         except Exception:
-            return False
+            pass
+
+    def load_network_list(self, file):
+        try:
+            with open(file, "r", encoding="utf-8", errors="ignore") as f:
+                self.network.extend(line.strip() for line in f if line.strip())
+        except Exception:
+            pass
+
+    def compile_all_rules(self, file_map):
+        try:
+            self.rules = yara.compile(filepaths=file_map)
+        except Exception:
+            pass
 
     def yara_scan(self, file_path):
         try:
-            for rules in self.rules.values():
-                matches = rules.match(filepath=file_path)
-                if matches:
-                    rule_name = str(matches[0])
-                    label = rule_name.split("_")[0]
-                    level = rule_name.split("_")[-1]
-                    return f"Rules/{label}", level
+            if not self.rules:
+                return False, False
+
+            matches = self.rules.match(filepath=file_path)
+            if matches:
+                rule_name = str(matches[0])
+                types = rule_name.split("_")[0]
+                label = rule_name.split("_")[1]
+                level = rule_name.split("_")[2]
+                return f"{types}/{label}", level
             return False, False
         except Exception:
             return False, False
@@ -108,63 +133,70 @@ class rule_scanner:
 
 class model_scanner:
     def __init__(self):
-        self.model = None
-        self.suffix = {".com", ".dll", ".drv", ".exe", ".ocx", ".scr", ".sys"}
+        self.models = []
         self.labels = ["Pefile/White", "Pefile/General"]
         self.detect_set = {"Pefile/General"}
         self.resize = (224, 224)
 
-    def load_path(self, path):
+    def load_path(self, path, callback=None):
         for root, _, files in os.walk(path):
             for file in files:
-                self.load_file(os.path.join(root, file))
+                full_path = os.path.join(root, file)
+                if callback:
+                    callback(full_path)
+                self.load_file(full_path)
 
     def load_file(self, file):
         if file.lower().endswith('.onnx'):
             try:
-                self.model = onnxruntime.InferenceSession(file)
+                session = onnxruntime.InferenceSession(file)
+                self.models.append(session)
             except Exception:
                 return False
 
     def model_scan(self, file_path, full_output=False):
-        if not self.model:
+        if not self.models:
             return (False, False) if not full_output else ([], str(file_path), None)
 
-        sections = self.extract_sections(file_path)
-        if not sections:
-            return (False, False) if not full_output else ([], str(file_path), None)
-            
-        images = [self.preprocess_image(data, self.resize) for data in sections.values()]
-        if not images:
+        data = self.get_data(file_path)
+        if not data:
             return (False, False) if not full_output else ([], str(file_path), None)
 
-        arr = numpy.stack([numpy.asarray(img).astype('float32') / 255.0 for img in images])
+        image = self.preprocess_image(data, self.resize)
+        if not image:
+            return (False, False) if not full_output else ([], str(file_path), None)
+
+        arr = numpy.asarray(image).astype('float32') / 255.0
+        arr = numpy.expand_dims(arr, axis=0)
         if arr.ndim == 3:
             arr = numpy.expand_dims(arr, axis=-1)
 
-        input_meta = self.model.get_inputs()[0]
-        input_name = input_meta.name
-        input_shape = input_meta.shape
-
-        if len(input_shape) == 4:
-            if input_shape[1] in (1, 3) and input_shape[3] not in (1, 3):
-                arr = arr.transpose(0, 3, 1, 2)
-        try:
-            probs = self.model.run(None, {input_name: arr})[0]
-        except Exception:
-            return (False, False) if not full_output else ([], str(file_path), None)
-
         results = []
         best_malicious = None
 
-        for name, pred, img in zip(sections.keys(), probs, images):
+        for model in self.models:
+            input_meta = model.get_inputs()[0]
+            input_name = input_meta.name
+            input_shape = input_meta.shape
+            
+            curr_arr = arr.copy()
+            if len(input_shape) == 4:
+                if input_shape[1] in (1, 3) and input_shape[3] not in (1, 3):
+                    curr_arr = curr_arr.transpose(0, 3, 1, 2)
+            
+            try:
+                probs = model.run(None, {input_name: curr_arr})[0]
+                pred = probs[0]
+            except Exception:
+                continue
+
             idx = int(numpy.argmax(pred))
             label = self.labels[idx] if idx < len(self.labels) else f"Class_{idx}"
             conf = round(float(pred[idx]) * 100, 2)
-            print(f"Section: {name} | Label: {label} | Confidence: {conf}%")
 
             if full_output:
-                results.append((name, label, conf, self.pil_to_base64(img)))
+                results.append(("Whole File", label, conf, self.pil_to_base64(image)))
+            
             if label in self.detect_set:
                 if best_malicious is None or conf > best_malicious[1]:
                     best_malicious = (label, int(conf))
@@ -191,18 +223,100 @@ class model_scanner:
         image = Image.fromarray(imgbuf.reshape((wah, wah)), 'L')
         return image.resize((width, height), Image.Resampling.NEAREST)
 
-    def extract_sections(self, file_path):
-        match_data = {}
-        fpath_str = str(file_path)
-        ext = os.path.splitext(fpath_str)[-1].lower()
-        if ext in self.suffix:
-            try:
-                with pefile.PE(fpath_str, fast_load=True) as pe:
-                    for section in pe.sections:
-                        name = section.Name.rstrip(b'\x00').decode('latin1', errors='ignore').lower()
-                        data = section.get_data()
-                        if data:
-                            match_data[name] = data
-            except Exception:
-                pass
-        return match_data
+    def get_data(self, file_path):
+        try:
+            with open(file_path, 'rb') as f:
+                return f.read()
+        except Exception:
+            return None
+
+####################################################################################################
+
+class cloud_scanner:
+    def __init__(self):
+        pass
+
+    def calc_hash(self, file_path, block_size=65536):
+        try:
+            h = hashlib.sha256()
+            with open(file_path, "rb") as f:
+                for chunk in iter(lambda: f.read(block_size), b""):
+                    h.update(chunk)
+            return h.hexdigest()
+        except Exception:
+            return ""
+
+    def upload_file(self, file_path, api_host, api_key):
+        try:
+            sha256 = self.calc_hash(file_path)
+            if not sha256:
+                return False, None
+
+            base = api_host.rstrip('/')
+            base_headers = {"X-API-Key": api_key, "User-Agent": "PYAS-Client/1.0"}
+
+            def _req(m, ep, files=None, **k):
+                try:
+                    return requests.request(m, f"{base}{ep}", headers=base_headers, files=files, timeout=120, **k)
+                except:
+                    return None
+
+            r = _req("GET", f"/api/processing_status/{sha256}")
+            status = r.json().get('status') if r and r.status_code == 200 else 'missing'
+            if status in ['failed', 'error']:
+                status = 'missing'
+
+            if status == 'missing':
+                with open(file_path, 'rb') as f:
+                    r = _req("POST", "/api/upload", files={'file': f})
+                    if not r or r.status_code != 200:
+                        return False, sha256
+
+            return True, sha256
+        except Exception:
+            return False, None
+
+    def get_result(self, sha256, api_host, api_key):
+        try:
+            if not sha256:
+                return False
+
+            base = api_host.rstrip('/')
+            headers = {"X-API-Key": api_key, "User-Agent": "PYAS-Client/1.0"}
+
+            def _req(m, ep, **k):
+                try:
+                    return requests.request(m, f"{base}{ep}", headers=headers, timeout=10, **k)
+                except:
+                    return None
+
+            for _ in range(30):
+                r = _req("GET", f"/api/processing_status/{sha256}")
+                st = r.json().get('status') if r else 'error'
+                if st == 'done':
+                    break
+                if st in ['error', 'failed']:
+                    return False
+                time.sleep(1)
+
+            r = _req("GET", f"/api/report/{sha256}")
+            if r and r.status_code == 200:
+                data = r.json().get('data', {})
+                res = data.get('detection', {}).get('results', {}).get('PYAS', {})
+                label = res.get('label', 'Unsupport')
+                sims = data.get('similar', [])
+
+                is_malicious = 'General' in label
+                sim_malicious_count = 0
+                valid_sim_count = 0
+                for s in sims:
+                    if s.get('similarity', 0) > 80:
+                        valid_sim_count += 1
+                        if "General" in s.get('label'):
+                            sim_malicious_count += 1
+
+                if is_malicious and (valid_sim_count == 0 or sim_malicious_count == valid_sim_count):
+                    return True
+        except Exception:
+            pass
+        return False

PYAS_Version.py

@@ -2,7 +2,7 @@ import pyinstaller_versionfile
 
 pyinstaller_versionfile.create_versionfile(
 output_file="versionfile.txt",
-version='3.3.7',
+version='3.3.8',
 company_name="PYAS Security",
 file_description="Python Antivirus Software",
 internal_name="PYAS",

Plugins/Filter/DriverCommon.h

@@ -0,0 +1,142 @@
+#pragma once
+#include <fltKernel.h>
+#include <ntddk.h>      
+#include <ntdddisk.h>   
+#include <ntddscsi.h> 
+#include <ntstrsafe.h>
+
+constexpr auto PYAS_PORT_NAME = L"\\PYAS_Output_Pipe";
+constexpr auto MAX_PATH_LEN = 1024;
+constexpr auto PYAS_POOL_TAG = 'SAYP';
+
+#ifndef PROCESS_TERMINATE
+#define PROCESS_TERMINATE                  (0x0001)
+#endif
+#ifndef PROCESS_CREATE_THREAD
+#define PROCESS_CREATE_THREAD              (0x0002)
+#endif
+#ifndef PROCESS_VM_OPERATION
+#define PROCESS_VM_OPERATION               (0x0008)
+#endif
+#ifndef PROCESS_VM_READ
+#define PROCESS_VM_READ                    (0x0010)
+#endif
+#ifndef PROCESS_VM_WRITE
+#define PROCESS_VM_WRITE                   (0x0020)
+#endif
+#ifndef PROCESS_DUP_HANDLE
+#define PROCESS_DUP_HANDLE                 (0x0040)
+#endif
+#ifndef PROCESS_CREATE_PROCESS
+#define PROCESS_CREATE_PROCESS             (0x0080)
+#endif
+#ifndef PROCESS_SET_INFORMATION
+#define PROCESS_SET_INFORMATION            (0x0200)
+#endif
+#ifndef PROCESS_QUERY_INFORMATION
+#define PROCESS_QUERY_INFORMATION          (0x0400)
+#endif
+#ifndef PROCESS_SUSPEND_RESUME
+#define PROCESS_SUSPEND_RESUME             (0x0800)
+#endif
+#ifndef PROCESS_QUERY_LIMITED_INFORMATION
+#define PROCESS_QUERY_LIMITED_INFORMATION  (0x1000)
+#endif
+#ifndef PROCESS_SET_QUOTA
+#define PROCESS_SET_QUOTA (0x0100)
+#endif
+
+#ifndef POOL_FLAG_NON_PAGED
+#define POOL_FLAG_NON_PAGED 0x0000000000000040UI64
+#endif
+
+#ifndef FSCTL_MANAGE_BYPASS_IO
+#define FSCTL_MANAGE_BYPASS_IO CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 188, METHOD_NEITHER, FILE_ANY_ACCESS)
+
+typedef enum _FS_BPIO_OPERATIONS {
+    FS_BPIO_OP_ENABLE = 1,
+    FS_BPIO_OP_DISABLE = 2,
+    FS_BPIO_OP_QUERY = 3,
+    FS_BPIO_OP_VOLUME_STACK_PAUSE = 4,
+    FS_BPIO_OP_VOLUME_STACK_RESUME = 5,
+    FS_BPIO_OP_STREAM_PAUSE = 6,
+    FS_BPIO_OP_STREAM_RESUME = 7,
+    FS_BPIO_OP_GET_INFO = 8
+} FS_BPIO_OPERATIONS;
+
+typedef struct _FS_BPIO_INPUT {
+    FS_BPIO_OPERATIONS Operation;
+    ULONG InFlags;
+    ULONGLONG Reserved1;
+    ULONGLONG Reserved2;
+} FS_BPIO_INPUT, * PFS_BPIO_INPUT;
+
+typedef struct _FS_BPIO_OUTPUT {
+    FS_BPIO_OPERATIONS Operation;
+    ULONG OutFlags;
+    ULONGLONG Reserved1;
+    ULONGLONG Reserved2;
+    NTSTATUS Status;
+} FS_BPIO_OUTPUT, * PFS_BPIO_OUTPUT;
+
+#endif
+
+typedef struct _PYAS_MESSAGE {
+    ULONG MessageCode;
+    ULONG ProcessId;
+    WCHAR Path[MAX_PATH_LEN];
+} PYAS_MESSAGE, * PPYAS_MESSAGE;
+
+typedef struct _DRIVER_DATA {
+    PDRIVER_OBJECT DriverObject;
+    PFLT_FILTER FilterHandle;
+    PFLT_PORT ServerPort;
+    PFLT_PORT ClientPort;
+    PEPROCESS PyasProcess;
+    ULONG PyasPid;
+    LARGE_INTEGER Cookie;
+    FAST_MUTEX PortMutex;
+    FAST_MUTEX TrackerMutex;
+    EX_RUNDOWN_REF PortRundown;
+} DRIVER_DATA, * PDRIVER_DATA;
+
+extern DRIVER_DATA GlobalData;
+
+FLT_PREOP_CALLBACK_STATUS ProtectFile_PreCreate(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext);
+FLT_PREOP_CALLBACK_STATUS ProtectFile_PreWrite(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext);
+FLT_PREOP_CALLBACK_STATUS ProtectFile_PreSetInfo(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext);
+FLT_PREOP_CALLBACK_STATUS ProtectFile_FileSystemControl(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext);
+FLT_PREOP_CALLBACK_STATUS ProtectBoot_PreDeviceControl(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext);
+
+NTSTATUS InitializeProcessProtection();
+VOID UninitializeProcessProtection();
+NTSTATUS InitializeRegistryProtection(PDRIVER_OBJECT DriverObject);
+VOID UninitializeRegistryProtection();
+
+VOID ImageLoadNotify(PUNICODE_STRING FullImageName, HANDLE ProcessId, PIMAGE_INFO ImageInfo);
+
+BOOLEAN IsProcessTrusted(HANDLE ProcessId);
+BOOLEAN IsTargetProtected(HANDLE ProcessId);
+BOOLEAN IsInstallerProcess(HANDLE ProcessId);
+BOOLEAN WildcardMatch(PCWSTR Pattern, PCWSTR String, USHORT StringLengthBytes);
+
+BOOLEAN CheckRegistryRule(PCUNICODE_STRING KeyName);
+BOOLEAN CheckFileExtensionRule(PCUNICODE_STRING FileName);
+BOOLEAN CheckProtectedPathRule(PCUNICODE_STRING FileName);
+BOOLEAN CheckRansomActivity(HANDLE ProcessId, PUNICODE_STRING FileName, PVOID Buffer, ULONG Length, BOOLEAN IsWrite);
+
+NTSTATUS SendMessageToUser(ULONG Code, ULONG Pid, PWCHAR Path, USHORT PathSize);
+
+FORCEINLINE PVOID PyasAllocate(SIZE_T Size) {
+#if (NTDDI_VERSION >= NTDDI_WIN10_VB)
+    return ExAllocatePool2(POOL_FLAG_NON_PAGED, Size, PYAS_POOL_TAG);
+#else
+    PVOID Buffer = ExAllocatePoolWithTag(NonPagedPoolNx, Size, PYAS_POOL_TAG);
+    if (Buffer) RtlZeroMemory(Buffer, Size);
+    return Buffer;
+#endif
+}
+
+FORCEINLINE VOID PyasFree(PVOID Ptr) {
+    if (Ptr) ExFreePoolWithTag(Ptr, PYAS_POOL_TAG);
+}

Plugins/Filter/DriverEntry.c

@@ -1,265 +0,0 @@
-#include <ntifs.h>
-#include "DriverEntry.h"
-#include "ProtectRules.h"
-
-LARGE_INTEGER g_CmRegHandle;
-PDEVICE_OBJECT g_ControlDeviceObject;
-KSPIN_LOCK g_ProtectLock;
-FAST_MUTEX HookMutex;
-PDRIVER_OBJECT DiskDrvObj = NULL;
-KEVENT g_LogDrainEvent;
-BOOLEAN g_Unloading = FALSE;
-BOOLEAN g_CmRegActive = FALSE;
-EX_RUNDOWN_REF g_Rundown;
-PDEVICE_OBJECT g_GuardDevice = NULL;
-PDRIVER_OBJECT g_DriverObject = NULL;
-
-PDEVICE_OBJECT g_MbrFilterTargets[MAX_MBR_TARGETS] = { 0 };
-ULONG g_MbrFilterCount = 0;
-
-volatile LONG g_LogWorkCount = 0;
-static UNICODE_STRING g_DeviceName;
-static WCHAR g_DeviceNameBuf[64];
-static UNICODE_STRING g_SymLink = RTL_CONSTANT_STRING(L"\\??\\PYAS_Driver");
-static BOOLEAN g_SymLinkCreated = FALSE;
-
-static NTSTATUS CombinedDispatch(PDEVICE_OBJECT DeviceObject, PIRP Irp)
-{
-    if (DeviceObject == g_ControlDeviceObject) {
-        PIO_STACK_LOCATION s = IoGetCurrentIrpStackLocation(Irp);
-        if (s->MajorFunction == IRP_MJ_CREATE || s->MajorFunction == IRP_MJ_CLOSE || s->MajorFunction == IRP_MJ_CLEANUP) {
-            Irp->IoStatus.Status = STATUS_SUCCESS;
-            Irp->IoStatus.Information = 0;
-            IoCompleteRequest(Irp, IO_NO_INCREMENT);
-            return STATUS_SUCCESS;
-        }
-        Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
-        Irp->IoStatus.Information = 0;
-        IoCompleteRequest(Irp, IO_NO_INCREMENT);
-        return STATUS_INVALID_DEVICE_REQUEST;
-    }
-
-    PIO_STACK_LOCATION s = IoGetCurrentIrpStackLocation(Irp);
-    if (s->MajorFunction == IRP_MJ_PNP) {
-        PDEVICE_OBJECT lower = (PDEVICE_OBJECT)DeviceObject->DeviceExtension;
-        if (s->MinorFunction == IRP_MN_REMOVE_DEVICE) {
-            NTSTATUS st;
-            IoSkipCurrentIrpStackLocation(Irp);
-            st = lower ? IoCallDriver(lower, Irp) : STATUS_SUCCESS;
-            if (lower) IoDetachDevice(lower);
-            IoDeleteDevice(DeviceObject);
-            return st;
-        }
-        IoSkipCurrentIrpStackLocation(Irp);
-        return IoCallDriver((PDEVICE_OBJECT)DeviceObject->DeviceExtension, Irp);
-    }
-
-    return BootProtectDispatch(DeviceObject, Irp);
-}
-
-static NTSTATUS AttachDiskFilters(PDRIVER_OBJECT DriverObject)
-{
-    UNICODE_STRING name = RTL_CONSTANT_STRING(L"\\Driver\\Disk");
-    UNICODE_STRING sym = RTL_CONSTANT_STRING(L"IoDriverObjectType");
-    POBJECT_TYPE* pType = (POBJECT_TYPE*)MmGetSystemRoutineAddress(&sym);
-
-    if (!pType || !*pType)
-        return STATUS_NOT_SUPPORTED;
-
-    NTSTATUS status = ObReferenceObjectByName(&name, OBJ_CASE_INSENSITIVE, NULL, 0, *pType, KernelMode, NULL, (PVOID*)&DiskDrvObj);
-    if (!NT_SUCCESS(status))
-        return status;
-
-    ULONG done = 0;
-    status = IoEnumerateDeviceObjectList(DiskDrvObj, NULL, 0, &done);
-    if (status != STATUS_BUFFER_TOO_SMALL && status != STATUS_SUCCESS) {
-        ObDereferenceObject(DiskDrvObj);
-        DiskDrvObj = NULL;
-        return status;
-    }
-
-    PDEVICE_OBJECT* list = ExAllocatePool2(POOL_FLAG_NON_PAGED, done * sizeof(PDEVICE_OBJECT), 'dskT');
-    if (!list) {
-        ObDereferenceObject(DiskDrvObj);
-        DiskDrvObj = NULL;
-        return STATUS_INSUFFICIENT_RESOURCES;
-    }
-
-    status = IoEnumerateDeviceObjectList(DiskDrvObj, list, done * sizeof(PDEVICE_OBJECT), &done);
-    if (!NT_SUCCESS(status)) {
-        ExFreePool2(list, 'dskT', NULL, 0);
-        ObDereferenceObject(DiskDrvObj);
-        DiskDrvObj = NULL;
-        return status;
-    }
-
-    for (ULONG i = 0; i < done && g_MbrFilterCount < MAX_MBR_TARGETS; ++i) {
-        PDEVICE_OBJECT lower = list[i], filter, attached = NULL;
-
-        status = IoCreateDevice(DriverObject, 0, NULL, lower->DeviceType, lower->Characteristics, FALSE, &filter);
-        if (!NT_SUCCESS(status))
-            continue;
-
-        filter->Flags |= (lower->Flags & (DO_BUFFERED_IO | DO_DIRECT_IO | DO_POWER_PAGABLE));
-
-        status = IoAttachDeviceToDeviceStackSafe(filter, lower, &attached);
-        if (!NT_SUCCESS(status) || !attached) {
-            IoDeleteDevice(filter);
-            continue;
-        }
-
-        filter->StackSize = lower->StackSize + 1;
-        filter->AlignmentRequirement = lower->AlignmentRequirement;
-        filter->DeviceExtension = attached;
-        filter->Flags &= ~DO_DEVICE_INITIALIZING;
-        g_MbrFilterTargets[g_MbrFilterCount++] = filter;
-    }
-
-    for (ULONG i = 0; i < done; ++i)
-        ObDereferenceObject(list[i]);
-    ExFreePool2(list, 'dskT', NULL, 0);
-    return STATUS_SUCCESS;
-}
-
-NTSTATUS DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
-{
-    UNREFERENCED_PARAMETER(RegistryPath);
-
-    g_DriverObject = DriverObject;
-
-    KeInitializeSpinLock(&g_ProtectLock);
-    ExInitializeFastMutex(&HookMutex);
-    KeInitializeEvent(&g_LogDrainEvent, NotificationEvent, TRUE);
-    g_Unloading = FALSE;
-    g_CmRegActive = FALSE;
-
-    InterlockedExchange(&g_LogWorkCount, 0);
-    ExInitializeRundownProtection(&g_Rundown);
-
-    {
-        UNICODE_STRING guardName = RTL_CONSTANT_STRING(L"\\Device\\PYAS_Driver_Guard");
-        NTSTATUS gs = IoCreateDevice(DriverObject, 0, &guardName, FILE_DEVICE_UNKNOWN, 0, FALSE, &g_GuardDevice);
-        if (!NT_SUCCESS(gs))
-            return STATUS_DEVICE_BUSY;
-    }
-
-    {
-        LARGE_INTEGER t = KeQueryPerformanceCounter(NULL);
-        g_DeviceName.Buffer = g_DeviceNameBuf;
-        g_DeviceName.MaximumLength = sizeof(g_DeviceNameBuf);
-        RtlStringCchPrintfW(g_DeviceName.Buffer, RTL_NUMBER_OF(g_DeviceNameBuf), L"\\Device\\PYAS_Driver_%p_%I64x", DriverObject, t.QuadPart);
-        g_DeviceName.Length = (USHORT)(wcslen(g_DeviceName.Buffer) * sizeof(WCHAR));
-    }
-
-    NTSTATUS status = IoCreateDevice(DriverObject, 0, &g_DeviceName, FILE_DEVICE_UNKNOWN, 0, FALSE, &g_ControlDeviceObject);
-    if (!NT_SUCCESS(status))
-        return status;
-
-    DriverObject->DriverUnload = DriverUnload;
-    for (ULONG i = 0; i < IRP_MJ_MAXIMUM_FUNCTION; ++i)
-        DriverObject->MajorFunction[i] = CombinedDispatch;
-
-    DriverObject->Flags |= 0x20;
-    g_ControlDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
-
-    IoDeleteSymbolicLink(&g_SymLink);
-    {
-        UINT i = 0;
-        for (; i < 50; ++i) {
-            status = IoCreateSymbolicLink(&g_SymLink, &g_DeviceName);
-            if (NT_SUCCESS(status))
-                break;
-            LARGE_INTEGER d = { 0 };
-            d.QuadPart = -10LL * 1000LL * 10LL;
-            KeDelayExecutionThread(KernelMode, FALSE, &d);
-            IoDeleteSymbolicLink(&g_SymLink);
-        }
-        if (!NT_SUCCESS(status)) {
-            IoDeleteDevice(g_ControlDeviceObject);
-            g_ControlDeviceObject = NULL;
-            if (g_GuardDevice) { IoDeleteDevice(g_GuardDevice); g_GuardDevice = NULL; }
-            return status;
-        }
-    }
-    g_SymLinkCreated = TRUE;
-
-    {
-        static WCHAR regAltBuf[32];
-        static UNICODE_STRING regAlt;
-        LARGE_INTEGER t = KeQueryPerformanceCounter(NULL);
-        RtlStringCchPrintfW(regAltBuf, RTL_NUMBER_OF(regAltBuf), L"385100.%I64x", t.QuadPart);
-        RtlInitUnicodeString(&regAlt, regAltBuf);
-
-        status = CmRegisterCallbackEx(RegistryProtectCallback, &regAlt, DriverObject, NULL, &g_CmRegHandle, NULL);
-        if (NT_SUCCESS(status))
-            g_CmRegActive = TRUE;
-    }
-
-    InitImageProtect();
-    InitInjectProtect();
-    InitRemoteProtect();
-    InitScreenProtect();
-    InitProcessProtect();
-
-    InitFileProtect();
-    AttachDiskFilters(DriverObject);
-
-    return STATUS_SUCCESS;
-}
-
-VOID DriverUnload(PDRIVER_OBJECT DriverObject)
-{
-    UNREFERENCED_PARAMETER(DriverObject);
-
-    g_Unloading = TRUE;
-
-    if (g_SymLinkCreated) {
-        IoDeleteSymbolicLink(&g_SymLink);
-        g_SymLinkCreated = FALSE;
-    }
-
-    if (g_CmRegActive) {
-        CmUnRegisterCallback(g_CmRegHandle);
-        g_CmRegActive = FALSE;
-    }
-
-    UninitFileProtect();
-    UninitInjectProtect();
-    UninitImageProtect();
-    UninitRemoteProtect();
-    UninitScreenProtect();
-    UninitProcessProtect();
-
-    ExWaitForRundownProtectionRelease(&g_Rundown);
-
-    if (InterlockedCompareExchange((volatile LONG*)&g_LogWorkCount, 0, 0) != 0) {
-        KeWaitForSingleObject(&g_LogDrainEvent, Executive, KernelMode, FALSE, NULL);
-    }
-    if (InterlockedCompareExchange(&g_LogWorkCount, 0, 0) != 0) {
-        KeResetEvent(&g_LogDrainEvent);
-        while (InterlockedCompareExchange(&g_LogWorkCount, 0, 0) != 0)
-            KeWaitForSingleObject(&g_LogDrainEvent, Executive, KernelMode, FALSE, NULL);
-    }
-
-    for (ULONG i = 0; i < g_MbrFilterCount; ++i) {
-        if (g_MbrFilterTargets[i]) {
-            IoDetachDevice((PDEVICE_OBJECT)g_MbrFilterTargets[i]->DeviceExtension);
-            IoDeleteDevice(g_MbrFilterTargets[i]);
-            g_MbrFilterTargets[i] = NULL;
-        }
-    }
-    g_MbrFilterCount = 0;
-
-    if (DiskDrvObj) {
-        ObDereferenceObject(DiskDrvObj);
-        DiskDrvObj = NULL;
-    }
-    if (g_ControlDeviceObject) {
-        IoDeleteDevice(g_ControlDeviceObject);
-        g_ControlDeviceObject = NULL;
-    }
-    if (g_GuardDevice) {
-        IoDeleteDevice(g_GuardDevice);
-        g_GuardDevice = NULL;
-    }
-}

Plugins/Filter/DriverEntry.cpp

@@ -0,0 +1,141 @@
+#include "DriverCommon.h"
+
+DRIVER_DATA GlobalData;
+
+static NTSTATUS InstanceSetup(PCFLT_RELATED_OBJECTS FltObjects, FLT_INSTANCE_SETUP_FLAGS Flags, DEVICE_TYPE VolumeDeviceType, FLT_FILESYSTEM_TYPE VolumeFilesystemType) {
+    UNREFERENCED_PARAMETER(FltObjects);
+    UNREFERENCED_PARAMETER(Flags);
+    UNREFERENCED_PARAMETER(VolumeDeviceType);
+    UNREFERENCED_PARAMETER(VolumeFilesystemType);
+    return STATUS_SUCCESS;
+}
+
+static NTSTATUS InstanceQueryTeardown(PCFLT_RELATED_OBJECTS FltObjects, FLT_INSTANCE_QUERY_TEARDOWN_FLAGS Flags) {
+    UNREFERENCED_PARAMETER(FltObjects);
+    UNREFERENCED_PARAMETER(Flags);
+    return STATUS_SUCCESS;
+}
+
+static VOID InstanceTeardownStart(PCFLT_RELATED_OBJECTS FltObjects, FLT_INSTANCE_TEARDOWN_FLAGS Flags) {
+    UNREFERENCED_PARAMETER(FltObjects);
+    UNREFERENCED_PARAMETER(Flags);
+}
+
+static VOID InstanceTeardownComplete(PCFLT_RELATED_OBJECTS FltObjects, FLT_INSTANCE_TEARDOWN_FLAGS Flags) {
+    UNREFERENCED_PARAMETER(FltObjects);
+    UNREFERENCED_PARAMETER(Flags);
+}
+
+static NTSTATUS DriverUnload(FLT_FILTER_UNLOAD_FLAGS Flags) {
+    UNREFERENCED_PARAMETER(Flags);
+
+    PsRemoveLoadImageNotifyRoutine(ImageLoadNotify);
+    UninitializeRegistryProtection();
+    UninitializeProcessProtection();
+
+    ExWaitForRundownProtectionRelease(&GlobalData.PortRundown);
+
+    if (GlobalData.ServerPort) {
+        FltCloseCommunicationPort(GlobalData.ServerPort);
+    }
+    if (GlobalData.FilterHandle) {
+        FltUnregisterFilter(GlobalData.FilterHandle);
+    }
+    return STATUS_SUCCESS;
+}
+
+static NTSTATUS PortConnect(PFLT_PORT ClientPort, PVOID ServerPortCookie, PVOID ConnectionContext, ULONG SizeOfContext, PVOID* ConnectionPortCookie) {
+    UNREFERENCED_PARAMETER(ServerPortCookie);
+    UNREFERENCED_PARAMETER(ConnectionContext);
+    UNREFERENCED_PARAMETER(SizeOfContext);
+    UNREFERENCED_PARAMETER(ConnectionPortCookie);
+
+    ExAcquireFastMutex(&GlobalData.PortMutex);
+
+    GlobalData.ClientPort = ClientPort;
+    GlobalData.PyasPid = (ULONG)(ULONG_PTR)PsGetCurrentProcessId();
+    GlobalData.PyasProcess = PsGetCurrentProcess();
+
+    ExReInitializeRundownProtection(&GlobalData.PortRundown);
+
+    ExReleaseFastMutex(&GlobalData.PortMutex);
+
+    return STATUS_SUCCESS;
+}
+
+static VOID PortDisconnect(PVOID ConnectionCookie) {
+    UNREFERENCED_PARAMETER(ConnectionCookie);
+
+    ExAcquireFastMutex(&GlobalData.PortMutex);
+    GlobalData.ClientPort = NULL;
+    GlobalData.PyasPid = 0;
+    if (GlobalData.PyasProcess) {
+        GlobalData.PyasProcess = NULL;
+    }
+    ExReleaseFastMutex(&GlobalData.PortMutex);
+
+    ExWaitForRundownProtectionRelease(&GlobalData.PortRundown);
+}
+
+CONST FLT_OPERATION_REGISTRATION Callbacks[] = {
+    { IRP_MJ_CREATE, 0, ProtectFile_PreCreate, NULL },
+    { IRP_MJ_WRITE, 0, ProtectFile_PreWrite, NULL },
+    { IRP_MJ_SET_INFORMATION, 0, ProtectFile_PreSetInfo, NULL },
+    { IRP_MJ_FILE_SYSTEM_CONTROL, 0, ProtectFile_FileSystemControl, NULL },
+    { IRP_MJ_DEVICE_CONTROL, 0, ProtectBoot_PreDeviceControl, NULL },
+    { IRP_MJ_OPERATION_END }
+};
+
+CONST FLT_REGISTRATION FilterRegistration = {
+    sizeof(FLT_REGISTRATION),
+    FLT_REGISTRATION_VERSION,
+    0,
+    NULL,
+    Callbacks,
+    DriverUnload,
+    InstanceSetup,
+    InstanceQueryTeardown,
+    InstanceTeardownStart,
+    InstanceTeardownComplete,
+    NULL,
+    NULL,
+    NULL
+};
+
+extern "C" NTSTATUS DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath) {
+    UNREFERENCED_PARAMETER(RegistryPath);
+
+    NTSTATUS status = STATUS_SUCCESS;
+    PSECURITY_DESCRIPTOR sd = NULL;
+    OBJECT_ATTRIBUTES oa = { 0 };
+    UNICODE_STRING name = { 0 };
+
+    RtlZeroMemory(&GlobalData, sizeof(GlobalData));
+    GlobalData.DriverObject = DriverObject;
+    ExInitializeFastMutex(&GlobalData.PortMutex);
+    ExInitializeFastMutex(&GlobalData.TrackerMutex);
+
+    ExInitializeRundownProtection(&GlobalData.PortRundown);
+
+    status = FltRegisterFilter(DriverObject, &FilterRegistration, &GlobalData.FilterHandle);
+    if (!NT_SUCCESS(status)) return status;
+
+    status = FltBuildDefaultSecurityDescriptor(&sd, FLT_PORT_ALL_ACCESS);
+    if (NT_SUCCESS(status)) {
+        RtlInitUnicodeString(&name, PYAS_PORT_NAME);
+        InitializeObjectAttributes(&oa, &name, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, NULL, sd);
+        status = FltCreateCommunicationPort(GlobalData.FilterHandle, &GlobalData.ServerPort, &oa, NULL, PortConnect, PortDisconnect, NULL, 1);
+        FltFreeSecurityDescriptor(sd);
+    }
+
+    if (!NT_SUCCESS(status)) {
+        FltUnregisterFilter(GlobalData.FilterHandle);
+        return status;
+    }
+
+    InitializeProcessProtection();
+    InitializeRegistryProtection(DriverObject);
+    PsSetLoadImageNotifyRoutine(ImageLoadNotify);
+
+    return FltStartFiltering(GlobalData.FilterHandle);
+}

Plugins/Filter/DriverEntry.h

@@ -1,187 +0,0 @@
-#pragma once
-#include <ntifs.h>
-#include <ntstrsafe.h>
-#include <ntdddisk.h>
-#include <ntddscsi.h>
-#include <fltKernel.h>
-
-#define PIPE_NAME L"\\??\\pipe\\PYAS_Output_Pipe"
-
-#ifndef POOL_FLAG_NON_PAGED
-#define POOL_FLAG_NON_PAGED 0x00000001
-#endif
-#ifndef PROCESS_TERMINATE
-#define PROCESS_TERMINATE 0x0001
-#endif
-#ifndef PROCESS_CREATE_THREAD
-#define PROCESS_CREATE_THREAD 0x0002
-#endif
-#ifndef PROCESS_VM_OPERATION
-#define PROCESS_VM_OPERATION 0x0008
-#endif
-#ifndef PROCESS_VM_WRITE
-#define PROCESS_VM_WRITE 0x0020
-#endif
-#ifndef PROCESS_VM_READ
-#define PROCESS_VM_READ 0x0010
-#endif
-#ifndef PROCESS_DUP_HANDLE
-#define PROCESS_DUP_HANDLE 0x0040
-#endif
-#ifndef PROCESS_CREATE_PROCESS
-#define PROCESS_CREATE_PROCESS 0x0080
-#endif
-#ifndef PROCESS_SET_QUOTA
-#define PROCESS_SET_QUota 0x0100
-#endif
-#ifndef PROCESS_SET_INFORMATION
-#define PROCESS_SET_INFORMATION 0x0200
-#endif
-#ifndef PROCESS_SUSPEND_RESUME
-#define PROCESS_SUSPEND_RESUME 0x0800
-#endif
-#ifndef PROCESS_QUERY_LIMITED_INFORMATION
-#define PROCESS_QUERY_LIMITED_INFORMATION 0x1000
-#endif
-#ifndef PROCESS_SET_LIMITED_INFORMATION
-#define PROCESS_SET_LIMITED_INFORMATION 0x2000
-#endif
-#ifndef THREAD_TERMINATE
-#define THREAD_TERMINATE 0x0001
-#endif
-#ifndef THREAD_SUSPEND_RESUME
-#define THREAD_SUSPEND_RESUME 0x0002
-#endif
-#ifndef THREAD_SET_CONTEXT
-#define THREAD_SET_CONTEXT 0x0010
-#endif
-#ifndef THREAD_IMPERSONATE
-#define THREAD_IMPERSONATE 0x0100
-#endif
-#ifndef THREAD_DIRECT_IMPERSONATION
-#define THREAD_DIRECT_IMPERSONATION 0x0200
-#endif
-#ifndef JOB_OBJECT_ASSIGN_PROCESS
-#define JOB_OBJECT_ASSIGN_PROCESS 0x0001
-#endif
-#ifndef JOB_OBJECT_TERMINATE
-#define JOB_OBJECT_TERMINATE 0x0008
-#endif
-#ifndef FILE_DISPOSITION_DELETE
-#define FILE_DISPOSITION_DELETE 0x00000001
-#endif
-#ifndef UINT
-typedef unsigned int UINT;
-#endif
-#define MAX_MBR_TARGETS 64
-
-extern POBJECT_TYPE* PsJobType;
-extern volatile LONG g_LogWorkCount;
-extern BOOLEAN g_Unloading;
-extern KEVENT g_LogDrainEvent;
-extern KSPIN_LOCK g_ProtectLock;
-extern LARGE_INTEGER g_CmRegHandle;
-extern POBJECT_TYPE* IoDriverObjectType;
-extern POBJECT_TYPE* IoFileObjectType;
-extern FAST_MUTEX HookMutex;
-extern EX_RUNDOWN_REF g_Rundown;
-extern PDEVICE_OBJECT g_GuardDevice;
-extern PDRIVER_OBJECT g_DriverObject;
-extern PFLT_FILTER g_FilterHandle;
-
-NTSYSAPI PCSTR NTAPI PsGetProcessImageFileName(PEPROCESS Process);
-
-typedef PVOID(NTAPI* _pyas_ExAllocatePool2)(ULONG, SIZE_T, ULONG);
-typedef VOID(NTAPI* _pyas_ExFreePool2)(PVOID, ULONG, PVOID, ULONG);
-typedef PVOID(NTAPI* _pyas_ExAllocatePoolWithTag)(POOL_TYPE, SIZE_T, ULONG);
-typedef VOID(NTAPI* _pyas_ExFreePoolWithTag)(PVOID, ULONG);
-
-static __forceinline PVOID PYAS_ExAllocatePool2(ULONG f, SIZE_T s, ULONG t) {
-    static _pyas_ExAllocatePool2 p2 = 0;
-    if (!p2) {
-        UNICODE_STRING n = RTL_CONSTANT_STRING(L"ExAllocatePool2");
-        p2 = (_pyas_ExAllocatePool2)MmGetSystemRoutineAddress(&n);
-    }
-    if (p2)
-        return p2(f, s, t);
-    static _pyas_ExAllocatePoolWithTag p1 = 0;
-    if (!p1) {
-        UNICODE_STRING n = RTL_CONSTANT_STRING(L"ExAllocatePoolWithTag");
-        p1 = (_pyas_ExAllocatePoolWithTag)MmGetSystemRoutineAddress(&n);
-    }
-    if (p1)
-        return p1((f & POOL_FLAG_NON_PAGED) ? NonPagedPoolNx : PagedPool, s, t);
-    return NULL;
-}
-
-static __forceinline VOID PYAS_ExFreePool2(PVOID a, ULONG t, PVOID h, ULONG f) {
-    UNREFERENCED_PARAMETER(h);
-    UNREFERENCED_PARAMETER(f);
-
-    static _pyas_ExFreePool2 p2 = 0;
-    if (!p2) {
-        UNICODE_STRING n = RTL_CONSTANT_STRING(L"ExFreePool2");
-        p2 = (_pyas_ExFreePool2)MmGetSystemRoutineAddress(&n);
-    }
-    if (p2) {
-        p2(a, t, h, f);
-        return;
-    }
-    static _pyas_ExFreePoolWithTag p1 = 0;
-    if (!p1) {
-        UNICODE_STRING n = RTL_CONSTANT_STRING(L"ExFreePoolWithTag");
-        p1 = (_pyas_ExFreePoolWithTag)MmGetSystemRoutineAddress(&n);
-    }
-    if (p1) {
-        p1(a, t);
-        return;
-    }
-}
-
-#define ExAllocatePool2 PYAS_ExAllocatePool2
-#define ExFreePool2 PYAS_ExFreePool2
-
-VOID DriverUnload(PDRIVER_OBJECT DriverObject);
-VOID SendPipeLog(PCSTR msg, SIZE_T len);
-VOID UninitImageProtect(VOID);
-VOID UninitInjectProtect(VOID);
-VOID UninitRemoteProtect(VOID);
-VOID UninitScreenProtect(VOID);
-VOID UninitProcessProtect(VOID);
-VOID UninitFileProtect(VOID);
-
-VOID LogAnsi3(PCSTR tag, ULONG upid, PUNICODE_STRING s1, PUNICODE_STRING s2);
-
-NTSYSAPI NTSTATUS NTAPI ZwQueryInformationProcess(
-    _In_ HANDLE ProcessHandle,
-    _In_ PROCESSINFOCLASS ProcessInformationClass,
-    _Out_writes_bytes_opt_(ProcessInformationLength) PVOID ProcessInformation,
-    _In_ ULONG ProcessInformationLength,
-    _Out_opt_ PULONG ReturnLength
-);
-
-NTSTATUS ObReferenceObjectByName(
-    IN PUNICODE_STRING ObjectName,
-    IN ULONG Attributes,
-    IN PACCESS_STATE PassedAccessState OPTIONAL,
-    IN ACCESS_MASK DesiredAccess OPTIONAL,
-    IN POBJECT_TYPE ObjectType,
-    IN KPROCESSOR_MODE AccessMode,
-    IN OUT PVOID ParseContext OPTIONAL,
-    OUT PVOID* Object
-);
-
-NTSTATUS BootProtectDispatch(
-    PDEVICE_OBJECT DeviceObject,
-    PIRP Irp
-);
-
-NTSTATUS RegistryProtectCallback(PVOID ctx, PVOID arg1, PVOID arg2);
-NTSTATUS InitImageProtect(VOID);
-NTSTATUS InitInjectProtect(VOID);
-NTSTATUS InitRemoteProtect(VOID);
-NTSTATUS InitScreenProtect(VOID);
-NTSTATUS InitProcessProtect(VOID);
-NTSTATUS InitFileProtect(VOID);
-
-BOOLEAN GetProcessImagePathByPid(HANDLE pid, PUNICODE_STRING ProcessImagePath);

Plugins/Filter/DriverPipe.c

@@ -1,80 +0,0 @@
-#include <ntifs.h>
-#include <ntstrsafe.h>
-#include "DriverEntry.h"
-
-extern PDEVICE_OBJECT g_ControlDeviceObject;
-
-typedef struct _PIPE_LOG_CTX {
-    PIO_WORKITEM Item;
-    SIZE_T Len;
-    PCHAR Buf;
-}PIPE_LOG_CTX, * PPIPE_LOG_CTX;
-
-static VOID PipeLogWork(PDEVICE_OBJECT DeviceObject, PVOID Context)
-{
-    UNREFERENCED_PARAMETER(DeviceObject);
-    PPIPE_LOG_CTX ctx = (PPIPE_LOG_CTX)Context;
-    HANDLE h = NULL;
-    UNICODE_STRING name;
-    OBJECT_ATTRIBUTES oa = { 0 };
-    IO_STATUS_BLOCK iosb;
-    
-    RtlInitUnicodeString(&name, PIPE_NAME);
-    InitializeObjectAttributes(&oa, &name, OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE, NULL, NULL);
-    if (NT_SUCCESS(ZwCreateFile(&h, FILE_GENERIC_WRITE, &oa, &iosb, NULL, 0, 0, FILE_OPEN, FILE_SYNCHRONOUS_IO_NONALERT, NULL, 0))) {
-        ZwWriteFile(h, NULL, NULL, NULL, &iosb, ctx->Buf, (ULONG)(ctx->Len > 0xFFFFFFFF ? 0xFFFFFFFF : ctx->Len), NULL, NULL);
-        ZwClose(h);
-    }
-    IoFreeWorkItem(ctx->Item);
-    ExFreePool2(ctx->Buf, 'golP', NULL, 0);
-    ExFreePool2(ctx, 'golP', NULL, 0);
-    
-    if (InterlockedDecrement(&g_LogWorkCount) == 0) {
-        KeSetEvent(&g_LogDrainEvent, IO_NO_INCREMENT, FALSE);
-    }
-}
-
-VOID SendPipeLog(PCSTR msg, SIZE_T len)
-{
-    if (!msg || len == 0)
-        return;
-    if (!g_ControlDeviceObject)
-        return;
-    if (g_Unloading)
-        return;
-    PPIPE_LOG_CTX ctx = (PPIPE_LOG_CTX)ExAllocatePool2(POOL_FLAG_NON_PAGED, sizeof(PIPE_LOG_CTX), 'golP');
-    if (!ctx)
-        return;
-    ctx->Len = len;
-    ctx->Buf = (PCHAR)ExAllocatePool2(POOL_FLAG_NON_PAGED, ctx->Len, 'golP');
-    if (!ctx->Buf) {
-        ExFreePool2(ctx, 'golP', NULL, 0);
-        return;
-    }
-    RtlCopyMemory(ctx->Buf, msg, ctx->Len);
-    ctx->Item = IoAllocateWorkItem(g_ControlDeviceObject);
-    if (!ctx->Item) {
-        ExFreePool2(ctx->Buf, 'golP', NULL, 0);
-        ExFreePool2(ctx, 'golP', NULL, 0);
-        return;
-    }
-    InterlockedIncrement(&g_LogWorkCount);
-    IoQueueWorkItem(ctx->Item, PipeLogWork, DelayedWorkQueue, ctx);
-}
-
-VOID LogAnsi3(PCSTR tag, ULONG upid, PUNICODE_STRING s1, PUNICODE_STRING s2)
-{
-    ANSI_STRING a1 = { 0 }, a2 = { 0 };
-    CHAR buf[1024] = { 0 };
-
-    if (s1)
-        RtlUnicodeStringToAnsiString(&a1, s1, TRUE);
-    if (s2)
-        RtlUnicodeStringToAnsiString(&a2, s2, TRUE);
-
-    RtlStringCchPrintfA(buf, RTL_NUMBER_OF(buf), "%s | %u | %s | %s", tag, upid, a1.Buffer ? a1.Buffer : "",  a2.Buffer ? a2.Buffer : "");
-    SendPipeLog(buf, strlen(buf));
-
-    RtlFreeAnsiString(&a1);
-    RtlFreeAnsiString(&a2);
-}

Plugins/Filter/PYAS_Driver.inf

@@ -1,27 +1,52 @@
 [Version]
 Signature   = "$WINDOWS NT$"
-Class       = System 
-ClassGuid   = {4d36e97d-e325-11ce-bfc1-08002be10318}
+Class       = ActivityMonitor
+ClassGuid   = {b86dff51-a31e-4bac-b3cf-e8cfe75c9fc2}
 Provider    = %ManufacturerName%
+DriverVer   = 12/29/2025,1.0.0.0
 CatalogFile = PYAS_Driver.cat
 PnpLockdown = 1
-DriverVer   = 
 
 [DestinationDirs]
-DefaultDestDir = 13
-
-[DefaultInstall.ntamd64]
-CopyFiles = @PYAS_Driver.sys
-AddService = PYAS_Driver,0x00000002
-
-[SourceDisksFiles]
-PYAS_Driver.sys = 1
+DefaultDestDir          = 12
+PYAS_Driver.DriverFiles = 12
 
 [SourceDisksNames]
 1 = %DiskName%,,,""
 
+[SourceDisksFiles]
+PYAS_Driver.sys = 1,,
+
+[DefaultInstall.NTamd64]
+OptionDesc = %ServiceDescription%
+CopyFiles  = PYAS_Driver.DriverFiles
+
+[DefaultInstall.NTamd64.Services]
+AddService = %ServiceName%,,PYAS_Driver.Service
+
+[PYAS_Driver.DriverFiles]
+PYAS_Driver.sys
+
+[PYAS_Driver.Service]
+DisplayName      = %ServiceName%
+Description      = %ServiceDescription%
+ServiceBinary    = %12%\PYAS_Driver.sys
+Dependencies     = FltMgr
+ServiceType      = 2
+StartType        = 3
+ErrorControl     = 1
+LoadOrderGroup   = "FSFilter Activity Monitor"
+AddReg           = PYAS_Driver.AddReg
+
+[PYAS_Driver.AddReg]
+HKR,"Parameters","DebugFlags",0x00010001,0x0
+HKR,"Parameters","SupportedFeatures",0x00010001,0x3
+HKR,"Parameters\Instances","DefaultInstance",0x00000000,"PYAS Instance"
+HKR,"Parameters\Instances\PYAS Instance","Altitude",0x00000000,"320000"
+HKR,"Parameters\Instances\PYAS Instance","Flags",0x00010001,0x0
+
 [Strings]
-ManufacturerName = "PYAS_Driver"
-DiskName = "PYAS_Driver"
-ServiceName="PYAS_Driver"
-ServiceDisplayName="PYAS_Driver"
+ManufacturerName   = "PYAS Security"
+DiskName           = "PYAS_Driver Source Disk"
+ServiceName        = "PYAS_Driver"
+ServiceDescription = "PYAS Security Driver"

Plugins/Filter/PYAS_Driver.sln

@@ -0,0 +1,35 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36518.9 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "PYAS_Driver", "PYAS_Driver.vcxproj", "{699C79A8-A904-1976-F72A-CDD7E811CFD2}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|ARM64 = Debug|ARM64
+		Debug|x64 = Debug|x64
+		Release|ARM64 = Release|ARM64
+		Release|x64 = Release|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Debug|ARM64.Build.0 = Debug|ARM64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Debug|ARM64.Deploy.0 = Debug|ARM64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Debug|x64.ActiveCfg = Debug|x64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Debug|x64.Build.0 = Debug|x64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Debug|x64.Deploy.0 = Debug|x64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Release|ARM64.ActiveCfg = Release|ARM64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Release|ARM64.Build.0 = Release|ARM64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Release|ARM64.Deploy.0 = Release|ARM64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Release|x64.ActiveCfg = Release|x64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Release|x64.Build.0 = Release|x64
+		{699C79A8-A904-1976-F72A-CDD7E811CFD2}.Release|x64.Deploy.0 = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {D166699A-50D5-470E-9559-39B8E842528D}
+	EndGlobalSection
+EndGlobal

Plugins/Filter/PYAS_Driver.vcxproj

@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|ARM64">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM64">
+      <Configuration>Release</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{699C79A8-A904-1976-F72A-CDD7E811CFD2}</ProjectGuid>
+    <TemplateGuid>{dd38f7fc-d7bd-488b-9242-7d8754cde80d}</TemplateGuid>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <MinimumVisualStudioVersion>12.0</MinimumVisualStudioVersion>
+    <Configuration>Debug</Configuration>
+    <Platform Condition="'$(Platform)' == ''">x64</Platform>
+    <RootNamespace>PYAS_Driver</RootNamespace>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <TargetVersion>Windows10</TargetVersion>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
+    <ConfigurationType>Driver</ConfigurationType>
+    <DriverType>WDM</DriverType>
+    <Driver_SpectreMitigation>false</Driver_SpectreMitigation>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <TargetVersion>Windows10</TargetVersion>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
+    <ConfigurationType>Driver</ConfigurationType>
+    <DriverType>WDM</DriverType>
+    <Driver_SpectreMitigation>false</Driver_SpectreMitigation>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="Configuration">
+    <TargetVersion>Windows10</TargetVersion>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
+    <ConfigurationType>Driver</ConfigurationType>
+    <DriverType>WDM</DriverType>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'" Label="Configuration">
+    <TargetVersion>Windows10</TargetVersion>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
+    <ConfigurationType>Driver</ConfigurationType>
+    <DriverType>WDM</DriverType>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
+    <EnableInf2cat>false</EnableInf2cat>
+    <Inf2CatUseLocalTime>true</Inf2CatUseLocalTime>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
+    <Inf2CatUseLocalTime>true</Inf2CatUseLocalTime>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">
+    <DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
+    <DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <DriverSign>
+      <FileDigestAlgorithm>sha256</FileDigestAlgorithm>
+    </DriverSign>
+    <ClCompile>
+      <LanguageStandard>stdcpp20</LanguageStandard>
+      <TreatWarningAsError>false</TreatWarningAsError>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(DDK_LIB_PATH)fltmgr.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <DriverSign>
+      <FileDigestAlgorithm>sha256</FileDigestAlgorithm>
+    </DriverSign>
+    <ClCompile>
+      <TreatWarningAsError>false</TreatWarningAsError>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>$(DDK_LIB_PATH)fltmgr.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <Inf Include="PYAS_Driver.inf" />
+  </ItemGroup>
+  <ItemGroup>
+    <FilesToPackage Include="$(TargetPath)" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DriverCommon.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DriverEntry.cpp" />
+    <ClCompile Include="ProtectBoot.cpp" />
+    <ClCompile Include="ProtectFile.cpp" />
+    <ClCompile Include="ProtectProcess.cpp" />
+    <ClCompile Include="ProtectRegistry.cpp" />
+    <ClCompile Include="ProtectRules.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

Plugins/Filter/PYAS_Driver.vcxproj.filters

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+    <Filter Include="Driver Files">
+      <UniqueIdentifier>{8E41214B-6785-4CFE-B992-037D68949A14}</UniqueIdentifier>
+      <Extensions>inf;inv;inx;mof;mc;</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <Inf Include="PYAS_Driver.inf">
+      <Filter>Driver Files</Filter>
+    </Inf>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="DriverCommon.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="ProtectRules.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ProtectFile.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ProtectBoot.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ProtectRegistry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="ProtectProcess.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DriverEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

Plugins/Filter/ProtectBoot.c

@@ -1,175 +0,0 @@
-#include <ntifs.h>
-#include "DriverEntry.h"
-#include "ProtectMatch.h"
-
-#define PROTECTED_BOOT_AREA_SIZE (34 * 512)
-
-static VOID GetExeNameForLog(HANDLE pid, PUNICODE_STRING exe)
-{
-    if (!exe || !exe->Buffer || exe->MaximumLength == 0)
-        return;
-
-    exe->Length = 0;
-    if (KeGetCurrentIrql() == PASSIVE_LEVEL) {
-        if (GetProcessImagePathByPid(pid, exe))
-            return;
-    }
-    PEPROCESS eproc = PsGetCurrentProcess();
-    PCSTR n = PsGetProcessImageFileName(eproc);
-    size_t l = n ? strlen(n) : 0;
-
-    for (size_t i = 0; i < l && i < (exe->MaximumLength / sizeof(WCHAR)) - 1; i++)
-        exe->Buffer[i] = (WCHAR)n[i];
-    exe->Buffer[l] = 0;
-    exe->Length = (USHORT)(l * sizeof(WCHAR));
-}
-
-static BOOLEAN QueryDevName(PDEVICE_OBJECT dev, PUNICODE_STRING out)
-{
-    if (KeGetCurrentIrql() > APC_LEVEL)
-        return FALSE;
-
-    if (!dev || !out || !out->Buffer || out->MaximumLength == 0)
-        return FALSE;
-
-    ULONG need = 0;
-    NTSTATUS s = ObQueryNameString(dev, NULL, 0, &need);
-    if (s != STATUS_INFO_LENGTH_MISMATCH || need == 0)
-        return FALSE;
-
-    POBJECT_NAME_INFORMATION oni = (POBJECT_NAME_INFORMATION)ExAllocatePool2(POOL_FLAG_NON_PAGED, need, 'nOmD');
-    if (!oni)
-        return FALSE;
-
-    BOOLEAN ok = FALSE;
-    s = ObQueryNameString(dev, oni, need, &need);
-    if (NT_SUCCESS(s) && oni->Name.Buffer && oni->Name.Length && oni->Name.Length < out->MaximumLength) {
-        RtlCopyMemory(out->Buffer, oni->Name.Buffer, oni->Name.Length);
-        out->Length = (USHORT)oni->Name.Length;
-        out->Buffer[out->Length / sizeof(WCHAR)] = 0;
-        ok = TRUE;
-    }
-    ExFreePool2(oni, 'nOmD', NULL, 0);
-    return ok;
-}
-
-static BOOLEAN IsDangerousDiskIo(PIO_STACK_LOCATION s)
-{
-    if (!s) return FALSE;
-
-    if (s->MajorFunction == IRP_MJ_DEVICE_CONTROL || s->MajorFunction == IRP_MJ_INTERNAL_DEVICE_CONTROL) {
-        ULONG code = s->Parameters.DeviceIoControl.IoControlCode;
-        if (code == IOCTL_DISK_SET_DRIVE_LAYOUT || code == IOCTL_DISK_SET_DRIVE_LAYOUT_EX) return TRUE;
-        if (code == IOCTL_DISK_DELETE_DRIVE_LAYOUT) return TRUE;
-        if (code == IOCTL_DISK_FORMAT_TRACKS || code == IOCTL_DISK_FORMAT_TRACKS_EX) return TRUE;
-        if (code == IOCTL_DISK_SET_PARTITION_INFO || code == IOCTL_DISK_SET_PARTITION_INFO_EX) return TRUE;
-        if (code == IOCTL_SCSI_PASS_THROUGH || code == IOCTL_SCSI_PASS_THROUGH_DIRECT) return TRUE;
-    }
-
-    return FALSE;
-}
-
-static BOOLEAN IsBootSectorWrite(PIO_STACK_LOCATION s)
-{
-    if (s->MajorFunction == IRP_MJ_WRITE) {
-        LARGE_INTEGER offset = s->Parameters.Write.ByteOffset;
-        if (offset.QuadPart < PROTECTED_BOOT_AREA_SIZE) {
-            return TRUE;
-        }
-    }
-    return FALSE;
-}
-
-NTSTATUS BootProtectDispatch(PDEVICE_OBJECT DeviceObject, PIRP Irp)
-{
-    PDEVICE_OBJECT lower = (PDEVICE_OBJECT)DeviceObject->DeviceExtension;
-    if (!lower) {
-        Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
-        Irp->IoStatus.Information = 0;
-        IoCompleteRequest(Irp, IO_NO_INCREMENT);
-        return STATUS_INVALID_DEVICE_REQUEST;
-    }
-
-    if (!ExAcquireRundownProtection(&g_Rundown)) {
-        IoSkipCurrentIrpStackLocation(Irp);
-        return IoCallDriver(lower, Irp);
-    }
-
-    if (g_Unloading) {
-        IoSkipCurrentIrpStackLocation(Irp);
-        NTSTATUS rs = IoCallDriver(lower, Irp);
-        ExReleaseRundownProtection(&g_Rundown);
-        return rs;
-    }
-
-    PIO_STACK_LOCATION s = IoGetCurrentIrpStackLocation(Irp);
-
-    if (s->MajorFunction == IRP_MJ_POWER) {
-        PoStartNextPowerIrp(Irp);
-        IoSkipCurrentIrpStackLocation(Irp);
-        NTSTATUS ps = PoCallDriver(lower, Irp);
-        ExReleaseRundownProtection(&g_Rundown);
-        return ps;
-    }
-
-    HANDLE pid = PsGetCurrentProcessId();
-    ULONG upid = (ULONG)(ULONG_PTR)pid;
-
-    if (upid == 0 || upid == 4) {
-        IoSkipCurrentIrpStackLocation(Irp);
-        NTSTATUS ns = IoCallDriver(lower, Irp);
-        ExReleaseRundownProtection(&g_Rundown);
-        return ns;
-    }
-
-    BOOLEAN blocked = FALSE;
-    WCHAR eb[512] = { 0 };
-    UNICODE_STRING exe = { 0 };
-    exe.Buffer = eb;
-    exe.MaximumLength = sizeof(eb);
-
-    if (KeGetCurrentIrql() == PASSIVE_LEVEL) {
-        GetExeNameForLog(pid, &exe);
-        if (IsWhitelist(&exe)) {
-            IoSkipCurrentIrpStackLocation(Irp);
-            NTSTATUS ns2 = IoCallDriver(lower, Irp);
-            ExReleaseRundownProtection(&g_Rundown);
-            return ns2;
-        }
-    }
-
-    if (lower->DeviceType == FILE_DEVICE_DISK) {
-        if (IsDangerousDiskIo(s)) {
-            blocked = TRUE;
-        }
-
-        if (!blocked && IsBootSectorWrite(s)) {
-            blocked = TRUE;
-        }
-
-        if (blocked) {
-            if (KeGetCurrentIrql() <= APC_LEVEL) {
-                WCHAR db[512] = { 0 };
-                UNICODE_STRING dev = { 0 };
-                dev.Buffer = db;
-                dev.MaximumLength = sizeof(db);
-                QueryDevName(lower, &dev);
-
-                LogAnsi3("BOOT_BLOCK", upid, &exe, dev.Length ? &dev : &exe);
-            }
-        }
-    }
-
-    if (blocked) {
-        Irp->IoStatus.Status = STATUS_ACCESS_DENIED;
-        Irp->IoStatus.Information = 0;
-        IoCompleteRequest(Irp, IO_NO_INCREMENT);
-        ExReleaseRundownProtection(&g_Rundown);
-        return STATUS_ACCESS_DENIED;
-    }
-
-    IoSkipCurrentIrpStackLocation(Irp);
-    NTSTATUS rs2 = IoCallDriver(lower, Irp);
-    ExReleaseRundownProtection(&g_Rundown);
-    return rs2;
-}

Plugins/Filter/ProtectBoot.cpp

@@ -0,0 +1,34 @@
+#include "DriverCommon.h"
+
+#ifndef IOCTL_DISK_FORMAT_TRACKS
+#define IOCTL_DISK_FORMAT_TRACKS        CTL_CODE(IOCTL_DISK_BASE, 0x0006, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
+#endif
+#ifndef IOCTL_DISK_FORMAT_TRACKS_EX
+#define IOCTL_DISK_FORMAT_TRACKS_EX     CTL_CODE(IOCTL_DISK_BASE, 0x000b, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
+#endif
+
+FLT_PREOP_CALLBACK_STATUS ProtectBoot_PreDeviceControl(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext) {
+    UNREFERENCED_PARAMETER(FltObjects);
+    UNREFERENCED_PARAMETER(CompletionContext);
+
+    if (Data->RequestorMode == KernelMode) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    if (KeGetCurrentIrql() > APC_LEVEL) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    ULONG IoControlCode = Data->Iopb->Parameters.DeviceIoControl.Common.IoControlCode;
+
+    if (IoControlCode == IOCTL_DISK_SET_DRIVE_LAYOUT_EX ||
+        IoControlCode == IOCTL_SCSI_PASS_THROUGH_DIRECT ||
+        IoControlCode == IOCTL_DISK_FORMAT_TRACKS ||
+        IoControlCode == IOCTL_DISK_FORMAT_TRACKS_EX) {
+
+        HANDLE Pid = PsGetCurrentProcessId();
+        if (!IsProcessTrusted(Pid) && !IsInstallerProcess(Pid)) {
+            UNICODE_STRING MsgStr = RTL_CONSTANT_STRING(L"Disk_Wiper_Attempt");
+            SendMessageToUser(4001, (ULONG)(ULONG_PTR)Pid, MsgStr.Buffer, MsgStr.Length);
+            Data->IoStatus.Status = STATUS_ACCESS_DENIED;
+            return FLT_PREOP_COMPLETE;
+        }
+    }
+    return FLT_PREOP_SUCCESS_NO_CALLBACK;
+}

Plugins/Filter/ProtectFile.c

@@ -1,322 +0,0 @@
-#include <ntifs.h>
-#include <fltKernel.h>
-#include "DriverEntry.h"
-#include "ProtectMatch.h"
-
-#pragma comment(lib, "FltMgr.lib")
-
-PFLT_FILTER g_FilterHandle = NULL;
-extern PDRIVER_OBJECT g_DriverObject;
-EX_RUNDOWN_REF g_Rundown;
-
-// 定義標誌以便在不同 IRQL 下安全操作
-#define MAX_PATH_LEN 512
-
-// 獲取進程名稱 (僅在確定需要攔截時調用，減少性能開銷)
-static VOID GetExeNameSafe(HANDLE pid, PUNICODE_STRING exe)
-{
-    if (!exe || !exe->Buffer || !exe->MaximumLength)
-        return;
-
-    exe->Length = 0;
-
-    // 嘗試獲取短名稱 (最安全)
-    PEPROCESS cur = PsGetCurrentProcess();
-    PCSTR n = NULL;
-    if (cur) n = PsGetProcessImageFileName(cur);
-
-    // 如果在 PASSIVE_LEVEL，嘗試獲取完整路徑 (用於精確白名單)
-    // 注意：這裡依然有風險，但僅在攔截路徑執行
-    if (KeGetCurrentIrql() == PASSIVE_LEVEL) {
-        if (GetProcessImagePathByPid(pid, exe)) {
-            return;
-        }
-    }
-
-    // 降級方案：使用短名稱
-    size_t l = n ? strlen(n) : 0;
-    for (size_t i = 0; i < l && i < (exe->MaximumLength / sizeof(WCHAR)) - 1; i++)
-        exe->Buffer[i] = (WCHAR)n[i];
-    exe->Buffer[l] = 0;
-    exe->Length = (USHORT)(l * sizeof(WCHAR));
-}
-
-static BOOLEAN PreOpCheck(VOID)
-{
-    if (g_Unloading)
-        return FALSE;
-    if (!ExAcquireRundownProtection(&g_Rundown))
-        return FALSE;
-    return TRUE;
-}
-
-static VOID PostOpRelease(VOID)
-{
-    ExReleaseRundownProtection(&g_Rundown);
-}
-
-static BOOLEAN IsDeleteOrRename(PFLT_CALLBACK_DATA Data)
-{
-    FILE_INFORMATION_CLASS infoClass = Data->Iopb->Parameters.SetFileInformation.FileInformationClass;
-
-    if (infoClass == FileDispositionInformation) {
-        PFILE_DISPOSITION_INFORMATION di = (PFILE_DISPOSITION_INFORMATION)Data->Iopb->Parameters.SetFileInformation.InfoBuffer;
-        return di && di->DeleteFile;
-    }
-    if (infoClass == FileDispositionInformationEx) {
-        PFILE_DISPOSITION_INFORMATION_EX dx = (PFILE_DISPOSITION_INFORMATION_EX)Data->Iopb->Parameters.SetFileInformation.InfoBuffer;
-        return dx && (dx->Flags & FILE_DISPOSITION_DELETE);
-    }
-    if (infoClass == FileRenameInformation || infoClass == FileRenameInformationEx)
-        return TRUE;
-
-    return FALSE;
-}
-
-static BOOLEAN IsWriteAccess(PFLT_CALLBACK_DATA Data)
-{
-    // 如果是寫入操作，直接返回
-    if (Data->Iopb->MajorFunction == IRP_MJ_WRITE)
-        return TRUE;
-
-    // 如果是設置信息 (已經通過 IsDeleteOrRename 過濾)，視為寫入(修改元數據)
-    if (Data->Iopb->MajorFunction == IRP_MJ_SET_INFORMATION)
-        return TRUE;
-
-    // 如果是創建/打開文件，檢查權限
-    if (Data->Iopb->MajorFunction == IRP_MJ_CREATE) {
-        ULONG access = Data->Iopb->Parameters.Create.SecurityContext->DesiredAccess;
-        // 檢查是否包含寫入數據、追加數據、刪除、修改屬性等權限
-        if (access & (FILE_WRITE_DATA | FILE_APPEND_DATA | DELETE |
-            WRITE_DAC | WRITE_OWNER | GENERIC_WRITE | GENERIC_ALL)) {
-            return TRUE;
-        }
-    }
-    return FALSE;
-}
-
-static FLT_PREOP_CALLBACK_STATUS FilePreOp(
-    _Inout_ PFLT_CALLBACK_DATA Data,
-    _In_ PCFLT_RELATED_OBJECTS FltObjects,
-    _Flt_CompletionContext_Outptr_ PVOID* CompletionContext
-)
-{
-    UNREFERENCED_PARAMETER(FltObjects);
-    UNREFERENCED_PARAMETER(CompletionContext);
-
-    // 1. 基礎檢查 (Paging IO 不攔截)
-    if (FlagOn(Data->Iopb->IrpFlags, IRP_PAGING_IO)) {
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    if (!PreOpCheck())
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-
-    // 2. 獲取 PID
-    HANDLE pid = PsGetCurrentProcessId();
-    ULONG upid = (ULONG)(ULONG_PTR)pid;
-
-    // 忽略 System (4) 和 Idle (0) 進程，避免系統崩潰
-    if (upid == 0 || upid == 4) {
-        PostOpRelease();
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    // 3. 檢查操作類型 (僅關心 Create, Write, SetInfo)
-    BOOLEAN checkFile = (Data->Iopb->MajorFunction == IRP_MJ_CREATE || Data->Iopb->MajorFunction == IRP_MJ_WRITE);
-    BOOLEAN checkSetInfo = (Data->Iopb->MajorFunction == IRP_MJ_SET_INFORMATION);
-
-    if (!checkFile && !checkSetInfo) {
-        PostOpRelease();
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    if (checkSetInfo && !IsDeleteOrRename(Data)) {
-        PostOpRelease();
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    // 4. 獲取文件名 (這一步最關鍵)
-    PFLT_FILE_NAME_INFORMATION nameInfo = NULL;
-    // 使用 QUERY_DEFAULT | NORMALIZED 確保獲取標準化路徑
-    NTSTATUS status = FltGetFileNameInformation(Data, FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT, &nameInfo);
-
-    if (!NT_SUCCESS(status)) {
-        PostOpRelease();
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    status = FltParseFileNameInformation(nameInfo);
-    if (!NT_SUCCESS(status)) {
-        FltReleaseFileNameInformation(nameInfo);
-        PostOpRelease();
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    // 5. 邏輯判斷 (優化順序：文件名白名單 -> 黑名單 -> 操作檢查 -> 進程白名單)
-
-    // A. 全局文件白名單 (例如 Windows 目錄下的某些操作)
-    if (IsWhitelist(&nameInfo->Name)) {
-        FltReleaseFileNameInformation(nameInfo);
-        PostOpRelease();
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    // B. 黑名單匹配
-    BOOLEAN hitFile = MatchBlockFile(&nameInfo->Name);
-    // 勒索防護：必須在敏感目錄 且 有敏感後綴 (如 .txt, .doc)
-    // 註：Updater.bat 產生 .txt，應命中這裡
-    BOOLEAN hitRansom = MatchBlockRansom(&nameInfo->Name) && HasBlockedSuffix(&nameInfo->Name);
-
-    // 如果沒有命中任何規則，直接放行，節省資源
-    if (!hitFile && !hitRansom) {
-        FltReleaseFileNameInformation(nameInfo);
-        PostOpRelease();
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    // C. 檢查是否為寫入行為 (讀取不攔截)
-    if (!IsWriteAccess(Data)) {
-        FltReleaseFileNameInformation(nameInfo);
-        PostOpRelease();
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    // D. 到了這裡，說明命中規則且正在寫入，準備攔截
-    //    這時候才去獲取進程名稱，檢查進程白名單
-    WCHAR exe_buffer[MAX_PATH_LEN] = { 0 };
-    UNICODE_STRING exe = { 0 };
-    exe.Buffer = exe_buffer;
-    exe.MaximumLength = sizeof(exe_buffer);
-
-    GetExeNameSafe(pid, &exe); // 獲取進程名
-
-    if (IsWhitelistExcept(&exe)) {
-        // 進程在白名單中 (如 ntoskrnl, explorer 等)
-        FltReleaseFileNameInformation(nameInfo);
-        PostOpRelease();
-        return FLT_PREOP_SUCCESS_NO_CALLBACK;
-    }
-
-    // E. 執行攔截
-    if (hitRansom) {
-        LogAnsi3("RANSOM_BLOCK", upid, &exe, &nameInfo->Name);
-        Data->IoStatus.Status = STATUS_ACCESS_DENIED;
-        Data->IoStatus.Information = 0;
-        FltReleaseFileNameInformation(nameInfo);
-        PostOpRelease();
-        return FLT_PREOP_COMPLETE;
-    }
-
-    if (hitFile) {
-        LogAnsi3("FILE_BLOCK", upid, &exe, &nameInfo->Name);
-        Data->IoStatus.Status = STATUS_ACCESS_DENIED;
-        Data->IoStatus.Information = 0;
-        FltReleaseFileNameInformation(nameInfo);
-        PostOpRelease();
-        return FLT_PREOP_COMPLETE;
-    }
-
-    // 默認放行
-    FltReleaseFileNameInformation(nameInfo);
-    PostOpRelease();
-    return FLT_PREOP_SUCCESS_NO_CALLBACK;
-}
-
-static NTSTATUS FilterUnloadCallback(FLT_FILTER_UNLOAD_FLAGS Flags)
-{
-    UNREFERENCED_PARAMETER(Flags);
-    g_Unloading = TRUE;
-    ExWaitForRundownProtectionRelease(&g_Rundown);
-    if (g_FilterHandle != NULL) {
-        FltUnregisterFilter(g_FilterHandle);
-        g_FilterHandle = NULL;
-    }
-    return STATUS_SUCCESS;
-}
-
-static NTSTATUS FilterInstanceSetup(
-    _In_ PCFLT_RELATED_OBJECTS FltObjects,
-    _In_ FLT_INSTANCE_SETUP_FLAGS Flags,
-    _In_ DEVICE_TYPE VolumeDeviceType,
-    _In_ FLT_FILESYSTEM_TYPE VolumeFilesystemType
-)
-{
-    UNREFERENCED_PARAMETER(FltObjects);
-    UNREFERENCED_PARAMETER(Flags);
-    UNREFERENCED_PARAMETER(VolumeDeviceType);
-    UNREFERENCED_PARAMETER(VolumeFilesystemType);
-    // 自動附加到所有卷
-    return STATUS_SUCCESS;
-}
-
-static VOID FilterInstanceTeardownStart(
-    _In_ PCFLT_RELATED_OBJECTS FltObjects,
-    _In_ FLT_INSTANCE_TEARDOWN_FLAGS Flags
-)
-{
-    UNREFERENCED_PARAMETER(FltObjects);
-    UNREFERENCED_PARAMETER(Flags);
-}
-
-static VOID FilterInstanceTeardownComplete(
-    _In_ PCFLT_RELATED_OBJECTS FltObjects,
-    _In_ FLT_INSTANCE_TEARDOWN_FLAGS Flags
-)
-{
-    UNREFERENCED_PARAMETER(FltObjects);
-    UNREFERENCED_PARAMETER(Flags);
-}
-
-const FLT_OPERATION_REGISTRATION Callbacks[] = {
-    { IRP_MJ_CREATE, 0, FilePreOp, NULL },
-    { IRP_MJ_WRITE, 0, FilePreOp, NULL },
-    { IRP_MJ_SET_INFORMATION, 0, FilePreOp, NULL },
-    { IRP_MJ_OPERATION_END }
-};
-
-const FLT_REGISTRATION FilterRegistration = {
-    sizeof(FLT_REGISTRATION),
-    FLT_REGISTRATION_VERSION,
-    0,
-    NULL,
-    Callbacks,
-    FilterUnloadCallback,
-    FilterInstanceSetup,
-    NULL,
-    FilterInstanceTeardownStart,
-    FilterInstanceTeardownComplete,
-    NULL,
-    NULL,
-    NULL,
-    NULL
-};
-
-NTSTATUS InitFileProtect(VOID)
-{
-    ExInitializeRundownProtection(&g_Rundown);
-
-    if (!g_DriverObject)
-        return STATUS_UNSUCCESSFUL;
-
-    NTSTATUS status = FltRegisterFilter(g_DriverObject, &FilterRegistration, &g_FilterHandle);
-    if (!NT_SUCCESS(status))
-        return status;
-
-    status = FltStartFiltering(g_FilterHandle);
-    if (!NT_SUCCESS(status)) {
-        FltUnregisterFilter(g_FilterHandle);
-        g_FilterHandle = NULL;
-    }
-    return status;
-}
-
-VOID UninitFileProtect(VOID)
-{
-    g_Unloading = TRUE;
-    ExWaitForRundownProtectionRelease(&g_Rundown);
-    if (g_FilterHandle != NULL) {
-        FltUnregisterFilter(g_FilterHandle);
-        g_FilterHandle = NULL;
-    }
-}

Plugins/Filter/ProtectFile.cpp

@@ -0,0 +1,236 @@
+#include "DriverCommon.h"
+
+static BOOLEAN IsHoneyToken(PUNICODE_STRING Path) {
+    if (!Path || !Path->Buffer) return FALSE;
+    if (WildcardMatch(L"*PYAS_Honey*", Path->Buffer, Path->Length) ||
+        WildcardMatch(L"*Backup_Secret*", Path->Buffer, Path->Length)) {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+FLT_PREOP_CALLBACK_STATUS ProtectFile_PreCreate(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext) {
+    UNREFERENCED_PARAMETER(FltObjects);
+    UNREFERENCED_PARAMETER(CompletionContext);
+
+    if (Data->RequestorMode == KernelMode) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+    if (KeGetCurrentIrql() > APC_LEVEL) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    PFLT_FILE_NAME_INFORMATION nameInfo = NULL;
+    UNICODE_STRING FileName = { 0 };
+    NTSTATUS status = STATUS_SUCCESS;
+    FLT_PREOP_CALLBACK_STATUS callbackStatus = FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    status = FltGetFileNameInformation(Data, FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT, &nameInfo);
+    if (!NT_SUCCESS(status) || !nameInfo) {
+        return FLT_PREOP_SUCCESS_NO_CALLBACK;
+    }
+
+    status = FltParseFileNameInformation(nameInfo);
+    if (!NT_SUCCESS(status)) {
+        FltReleaseFileNameInformation(nameInfo);
+        return FLT_PREOP_SUCCESS_NO_CALLBACK;
+    }
+
+    FileName = nameInfo->Name;
+    if (!FileName.Buffer || FileName.Length == 0) {
+        goto cleanup;
+    }
+
+    HANDLE Pid = PsGetCurrentProcessId();
+    BOOLEAN Trusted = IsProcessTrusted(Pid);
+
+    if (IsHoneyToken(&FileName)) {
+        if (!Trusted) {
+            if (Data->Iopb->Parameters.Create.SecurityContext->DesiredAccess & (FILE_WRITE_DATA | DELETE)) {
+                SendMessageToUser(5001, (ULONG)(ULONG_PTR)Pid, FileName.Buffer, FileName.Length);
+                Data->IoStatus.Status = STATUS_ACCESS_DENIED;
+                callbackStatus = FLT_PREOP_COMPLETE;
+                goto cleanup;
+            }
+        }
+    }
+
+    if (WildcardMatch(L"\\Device\\PhysicalDrive*", FileName.Buffer, FileName.Length) ||
+        (WildcardMatch(L"\\Device\\Harddisk*", FileName.Buffer, FileName.Length) && !WildcardMatch(L"*Volume*", FileName.Buffer, FileName.Length))) {
+
+        if (Data->Iopb->Parameters.Create.SecurityContext->DesiredAccess &
+            (FILE_WRITE_DATA | FILE_APPEND_DATA | GENERIC_WRITE | WRITE_DAC | WRITE_OWNER)) {
+
+            if (!Trusted && !IsInstallerProcess(Pid)) {
+                UNICODE_STRING MsgStr = RTL_CONSTANT_STRING(L"Disk_Wiper_Attempt");
+                SendMessageToUser(4001, (ULONG)(ULONG_PTR)Pid, MsgStr.Buffer, MsgStr.Length);
+                Data->IoStatus.Status = STATUS_ACCESS_DENIED;
+                callbackStatus = FLT_PREOP_COMPLETE;
+                goto cleanup;
+            }
+        }
+    }
+
+    if (CheckProtectedPathRule(&FileName)) {
+        if (!Trusted) {
+            if (Data->Iopb->Parameters.Create.SecurityContext->DesiredAccess & (FILE_WRITE_DATA | DELETE | WRITE_DAC | GENERIC_WRITE)) {
+                SendMessageToUser(2001, (ULONG)(ULONG_PTR)Pid, FileName.Buffer, FileName.Length);
+                Data->IoStatus.Status = STATUS_ACCESS_DENIED;
+                callbackStatus = FLT_PREOP_COMPLETE;
+                goto cleanup;
+            }
+        }
+    }
+
+    if (CheckFileExtensionRule(&FileName)) {
+        if (!Trusted) {
+            if (Data->Iopb->Parameters.Create.SecurityContext->DesiredAccess & (DELETE | FILE_DELETE_CHILD)) {
+                if (CheckRansomActivity(Pid, &FileName, NULL, 0, FALSE)) {
+                    SendMessageToUser(5001, (ULONG)(ULONG_PTR)Pid, FileName.Buffer, FileName.Length);
+                    Data->IoStatus.Status = STATUS_ACCESS_DENIED;
+                    callbackStatus = FLT_PREOP_COMPLETE;
+                    goto cleanup;
+                }
+            }
+        }
+    }
+
+cleanup:
+    if (nameInfo) {
+        FltReleaseFileNameInformation(nameInfo);
+    }
+    return callbackStatus;
+}
+
+FLT_PREOP_CALLBACK_STATUS ProtectFile_PreSetInfo(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext) {
+    UNREFERENCED_PARAMETER(FltObjects);
+    UNREFERENCED_PARAMETER(CompletionContext);
+
+    if (Data->RequestorMode == KernelMode) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+    if (KeGetCurrentIrql() > APC_LEVEL) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    FILE_INFORMATION_CLASS infoClass = Data->Iopb->Parameters.SetFileInformation.FileInformationClass;
+
+    if (infoClass != FileDispositionInformation &&
+        infoClass != FileRenameInformation &&
+        infoClass != FileRenameInformationEx) {
+        return FLT_PREOP_SUCCESS_NO_CALLBACK;
+    }
+
+    PFLT_FILE_NAME_INFORMATION nameInfo = NULL;
+    NTSTATUS status = FltGetFileNameInformation(Data, FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT, &nameInfo);
+
+    if (!NT_SUCCESS(status) || !nameInfo) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    status = FltParseFileNameInformation(nameInfo);
+    if (!NT_SUCCESS(status) || !nameInfo->Name.Buffer) {
+        FltReleaseFileNameInformation(nameInfo);
+        return FLT_PREOP_SUCCESS_NO_CALLBACK;
+    }
+
+    HANDLE Pid = PsGetCurrentProcessId();
+    if (!IsProcessTrusted(Pid)) {
+        if (CheckFileExtensionRule(&nameInfo->Name) || CheckProtectedPathRule(&nameInfo->Name)) {
+            if (CheckRansomActivity(Pid, &nameInfo->Name, NULL, 0, FALSE)) {
+                SendMessageToUser(5001, (ULONG)(ULONG_PTR)Pid, nameInfo->Name.Buffer, nameInfo->Name.Length);
+                Data->IoStatus.Status = STATUS_ACCESS_DENIED;
+                FltReleaseFileNameInformation(nameInfo);
+                return FLT_PREOP_COMPLETE;
+            }
+        }
+    }
+
+    if (nameInfo) {
+        FltReleaseFileNameInformation(nameInfo);
+    }
+    return FLT_PREOP_SUCCESS_NO_CALLBACK;
+}
+
+FLT_PREOP_CALLBACK_STATUS ProtectFile_PreWrite(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext) {
+    UNREFERENCED_PARAMETER(FltObjects);
+    UNREFERENCED_PARAMETER(CompletionContext);
+
+    if (Data->RequestorMode == KernelMode) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    if (Data->Iopb->IrpFlags & (IRP_PAGING_IO | IRP_SYNCHRONOUS_PAGING_IO | IRP_NOCACHE)) {
+        return FLT_PREOP_SUCCESS_NO_CALLBACK;
+    }
+
+    ULONG WriteLength = Data->Iopb->Parameters.Write.Length;
+    if (WriteLength == 0) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    PFLT_FILE_NAME_INFORMATION nameInfo = NULL;
+    NTSTATUS status = FltGetFileNameInformation(Data, FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT, &nameInfo);
+
+    FLT_PREOP_CALLBACK_STATUS callbackStatus = FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    if (NT_SUCCESS(status) && nameInfo) {
+        status = FltParseFileNameInformation(nameInfo);
+        if (NT_SUCCESS(status) && nameInfo->Name.Buffer) {
+
+            if (CheckFileExtensionRule(&nameInfo->Name)) {
+                HANDLE Pid = PsGetCurrentProcessId();
+
+                if (!IsProcessTrusted(Pid)) {
+
+                    PVOID SystemBuffer = NULL;
+                    PMDL Mdl = Data->Iopb->Parameters.Write.MdlAddress;
+
+                    if (!Mdl) {
+                        if (Data->Iopb->Parameters.Write.WriteBuffer && KeGetCurrentIrql() <= APC_LEVEL) {
+                            if (NT_SUCCESS(FltLockUserBuffer(Data))) {
+                                Mdl = Data->Iopb->Parameters.Write.MdlAddress;
+                            }
+                        }
+                    }
+
+                    if (Mdl) {
+                        SystemBuffer = MmGetSystemAddressForMdlSafe(Mdl, NormalPagePriority | MdlMappingNoExecute);
+                    }
+
+                    if (SystemBuffer) {
+                        if (CheckRansomActivity(Pid, &nameInfo->Name, SystemBuffer, WriteLength, TRUE)) {
+                            if (!IsInstallerProcess(Pid)) {
+                                SendMessageToUser(5001, (ULONG)(ULONG_PTR)Pid, nameInfo->Name.Buffer, nameInfo->Name.Length);
+                                Data->IoStatus.Status = STATUS_ACCESS_DENIED;
+                                callbackStatus = FLT_PREOP_COMPLETE;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        FltReleaseFileNameInformation(nameInfo);
+    }
+    return callbackStatus;
+}
+
+FLT_PREOP_CALLBACK_STATUS ProtectFile_FileSystemControl(PFLT_CALLBACK_DATA Data, PCFLT_RELATED_OBJECTS FltObjects, PVOID* CompletionContext) {
+    UNREFERENCED_PARAMETER(FltObjects);
+    UNREFERENCED_PARAMETER(CompletionContext);
+
+    if (Data->Iopb->Parameters.FileSystemControl.Common.FsControlCode != FSCTL_MANAGE_BYPASS_IO) {
+        return FLT_PREOP_SUCCESS_NO_CALLBACK;
+    }
+
+    PFS_BPIO_INPUT InputBuffer = (PFS_BPIO_INPUT)Data->Iopb->Parameters.FileSystemControl.Neither.InputBuffer;
+    if (!InputBuffer) return FLT_PREOP_SUCCESS_NO_CALLBACK;
+
+    __try {
+        if (InputBuffer->Operation == FS_BPIO_OP_ENABLE) {
+            PFLT_FILE_NAME_INFORMATION nameInfo = NULL;
+            if (NT_SUCCESS(FltGetFileNameInformation(Data, FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT, &nameInfo)) && nameInfo) {
+                if (NT_SUCCESS(FltParseFileNameInformation(nameInfo))) {
+                    if (CheckFileExtensionRule(&nameInfo->Name) || CheckProtectedPathRule(&nameInfo->Name)) {
+
+                        Data->IoStatus.Status = STATUS_NOT_SUPPORTED;
+                        FltReleaseFileNameInformation(nameInfo);
+                        return FLT_PREOP_COMPLETE;
+                    }
+                }
+                FltReleaseFileNameInformation(nameInfo);
+            }
+        }
+    }
+    __except (EXCEPTION_EXECUTE_HANDLER) {
+        return FLT_PREOP_SUCCESS_NO_CALLBACK;
+    }
+
+    return FLT_PREOP_SUCCESS_NO_CALLBACK;
+}

Plugins/Filter/ProtectImage.c

@@ -1,124 +0,0 @@
-#include <ntifs.h>
-#include "DriverEntry.h"
-#include "ProtectMatch.h"
-
-static BOOLEAN g_ImageNotifyEnabled = FALSE;
-
-static BOOLEAN CheckVadExec(PVOID a)
-{
-    MEMORY_BASIC_INFORMATION mbi = { 0 };
-    SIZE_T ret = 0;
-    NTSTATUS s = ZwQueryVirtualMemory(NtCurrentProcess(), a, MemoryBasicInformation, &mbi, sizeof(mbi), &ret);
-    
-    if (!NT_SUCCESS(s))
-        return FALSE;
-    if (mbi.State != MEM_COMMIT)
-        return FALSE;
-    if (mbi.Type == SEC_IMAGE)
-        return FALSE;
-    if (mbi.Type != MEM_PRIVATE && mbi.Type != MEM_MAPPED)
-        return FALSE;
-    return (mbi.Protect & (PAGE_EXECUTE | PAGE_EXECUTE_READ | PAGE_EXECUTE_READWRITE | PAGE_EXECUTE_WRITECOPY)) != 0;
-}
-
-static BOOLEAN WalkForShellcode(ULONG h)
-{
-#define MAXWALK 20
-    PVOID frames[MAXWALK] = { 0 };
-    ULONG c = RtlWalkFrameChain(frames, MAXWALK, 1);
-    if (c == 0)
-        return FALSE;
-    
-    ULONG limit = RTL_NUMBER_OF(frames);
-    ULONG count = c < limit ? c : limit;
-    ULONG d = h < count ? h : count;
-    
-    for (ULONG i = 0; i < d; i++) {
-        PVOID p = frames[i];
-        if (p && CheckVadExec(p))
-            return TRUE;
-    }
-    for (ULONG i = 0; i < d; i++) {
-        ULONG idx = count - 1 - i;
-        if (idx >= d) {
-            PVOID p = frames[idx];
-            if (p && CheckVadExec(p))
-                return TRUE;
-        }
-    }
-    return FALSE;
-}
-
-static VOID ImageLoadNotify(IN PUNICODE_STRING FullImageName, IN HANDLE ProcessId, IN PIMAGE_INFO ImageInfo)
-{
-    UNREFERENCED_PARAMETER(ImageInfo);
-    if (g_Unloading)
-        return;
-    if (ProcessId == (HANDLE)0 || ProcessId == (HANDLE)4)
-        return;
-    if (KeGetCurrentIrql() != PASSIVE_LEVEL)
-        return;
-    if (!ExAcquireRundownProtection(&g_Rundown))
-        return;
-
-    WCHAR eb[512] = { 0 };
-    UNICODE_STRING exe = { 0 };
-    exe.Buffer = eb;
-    exe.MaximumLength = sizeof(eb);
-    exe.Length = 0;
-
-    if (!GetProcessImagePathByPid(ProcessId, &exe)) {
-        PEPROCESS eproc = PsGetCurrentProcess();
-        PCSTR n = PsGetProcessImageFileName(eproc);
-        size_t l = n ? strlen(n) : 0;
-        for (size_t i = 0; i < l && i < RTL_NUMBER_OF(eb) - 1; i++)
-            eb[i] = (WCHAR)n[i];
-        eb[l] = 0;
-        exe.Length = (USHORT)(l * sizeof(WCHAR));
-    }
-    if (exe.Length & 1) exe.Length--;
-
-    {
-        size_t elen = exe.Length / sizeof(WCHAR);
-        if ((elen >= 14 && _wcsnicmp(exe.Buffer + elen - 14, L"powershell.exe", 14) == 0) ||
-            (elen >= 8 && _wcsnicmp(exe.Buffer + elen - 8, L"pwsh.exe", 8) == 0) ||
-            (elen >= 10 && _wcsnicmp(exe.Buffer + elen - 10, L"sppsvc.exe", 10) == 0)) {
-            ExReleaseRundownProtection(&g_Rundown);
-            return;
-        }
-    }
-    if (IsWhitelist(&exe)) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return;
-    }
-    if (FullImageName && FullImageName->Buffer) {
-        if (MatchClrFromNonFramework(FullImageName)) {
-            LogAnsi3("CLR_BLOCK", (ULONG)(ULONG_PTR)ProcessId, &exe, FullImageName);
-            ExReleaseRundownProtection(&g_Rundown);
-            return;
-        }
-    }
-    if (WalkForShellcode(8)) {
-        UNICODE_STRING none = RTL_CONSTANT_STRING(L"None");
-        LogAnsi3("SHELLCODE_BLOCK", (ULONG)(ULONG_PTR)ProcessId, &exe, &none);
-        ExReleaseRundownProtection(&g_Rundown);
-        return;
-    }
-    ExReleaseRundownProtection(&g_Rundown);
-}
-
-NTSTATUS InitImageProtect(VOID)
-{
-    NTSTATUS s = PsSetLoadImageNotifyRoutine(ImageLoadNotify);
-    if (NT_SUCCESS(s))
-        g_ImageNotifyEnabled = TRUE;
-    return s;
-}
-
-VOID UninitImageProtect(VOID)
-{
-    if (g_ImageNotifyEnabled) {
-        PsRemoveLoadImageNotifyRoutine(ImageLoadNotify);
-        g_ImageNotifyEnabled = FALSE;
-    }
-}

Plugins/Filter/ProtectInject.c

@@ -1,177 +0,0 @@
-#include <ntifs.h>
-#include "DriverEntry.h"
-#include "ProtectMatch.h"
-
-static PVOID g_ObRegHandle = NULL;
-static POB_OPERATION_REGISTRATION g_ObOps = NULL;
-static OB_CALLBACK_REGISTRATION g_ObReg = { 0 };
-
-static OB_PREOP_CALLBACK_STATUS PreProcessCallback(PVOID RegistrationContext, POB_PRE_OPERATION_INFORMATION Info)
-{
-    UNREFERENCED_PARAMETER(RegistrationContext);
-    if (g_Unloading)
-        return OB_PREOP_SUCCESS;
-    if (!Info || Info->KernelHandle)
-        return OB_PREOP_SUCCESS;
-    if (!Info->Object)
-        return OB_PREOP_SUCCESS;
-    if (Info->Operation != OB_OPERATION_HANDLE_CREATE && Info->Operation != OB_OPERATION_HANDLE_DUPLICATE)
-        return OB_PREOP_SUCCESS;
-    if (!ExAcquireRundownProtection(&g_Rundown))
-        return OB_PREOP_SUCCESS;
-
-    HANDLE cur = PsGetCurrentProcessId();
-    if (cur == (HANDLE)0 || cur == (HANDLE)4) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return OB_PREOP_SUCCESS;
-    }
-    HANDLE target = PsGetProcessId((PEPROCESS)Info->Object);
-    if (target == cur) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return OB_PREOP_SUCCESS;
-    }
-    ACCESS_MASK* desired = (Info->Operation == OB_OPERATION_HANDLE_CREATE) ? &Info->Parameters->CreateHandleInformation.DesiredAccess : &Info->Parameters->DuplicateHandleInformation.DesiredAccess;
-    ACCESS_MASK mask = PROCESS_CREATE_THREAD | PROCESS_VM_OPERATION | PROCESS_VM_WRITE;
-    PCSTR tn = PsGetProcessImageFileName((PEPROCESS)Info->Object);
-    if (tn && (_stricmp(tn, "lsass.exe") == 0))
-        mask |= PROCESS_VM_READ;
-
-    if ((*desired & mask) == 0) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return OB_PREOP_SUCCESS;
-    }
-    BOOLEAN logok = (KeGetCurrentIrql() == PASSIVE_LEVEL);
-    WCHAR cbuf[512] = { 0 }, tbuf[512] = { 0 };
-    UNICODE_STRING cexe = { 0 }, texe = { 0 };
-    cexe.Buffer = cbuf; cexe.MaximumLength = sizeof(cbuf);
-    texe.Buffer = tbuf; texe.MaximumLength = sizeof(tbuf);
-
-    if (logok)
-        GetProcessImagePathByPid(cur, &cexe);
-    if (logok && IsWhitelist(&cexe)) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return OB_PREOP_SUCCESS;
-    }
-    ACCESS_MASK old = *desired;
-    *desired &= ~mask;
-    if ((*desired) != old && logok) {
-        GetProcessImagePathByPid(target, &texe);
-        if (cexe.Length == 0) {
-            PEPROCESS eproc = PsGetCurrentProcess();
-            PCSTR n = PsGetProcessImageFileName(eproc);
-            size_t l = n ? strlen(n) : 0;
-            for (size_t i = 0; i < l && i < RTL_NUMBER_OF(cbuf) - 1; i++)
-                cbuf[i] = (WCHAR)n[i];
-            cbuf[l] = 0;
-            cexe.Length = (USHORT)(l * sizeof(WCHAR));
-        }
-        LogAnsi3("INJECT_BLOCK", (ULONG)(ULONG_PTR)cur, &cexe, &texe);
-    }
-    ExReleaseRundownProtection(&g_Rundown);
-    return OB_PREOP_SUCCESS;
-}
-
-static OB_PREOP_CALLBACK_STATUS PreThreadCallback(PVOID RegistrationContext, POB_PRE_OPERATION_INFORMATION Info)
-{
-    UNREFERENCED_PARAMETER(RegistrationContext);
-    if (!Info || Info->KernelHandle)
-        return OB_PREOP_SUCCESS;
-    if (Info->Object == NULL)
-        return OB_PREOP_SUCCESS;
-    if (Info->Operation != OB_OPERATION_HANDLE_CREATE && Info->Operation != OB_OPERATION_HANDLE_DUPLICATE)
-        return OB_PREOP_SUCCESS;
-    if (!ExAcquireRundownProtection(&g_Rundown))
-        return OB_PREOP_SUCCESS;
-
-    HANDLE cur = PsGetCurrentProcessId();
-    if (cur == (HANDLE)0 || cur == (HANDLE)4) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return OB_PREOP_SUCCESS;
-    }
-    HANDLE owner = PsGetThreadProcessId((PETHREAD)Info->Object);
-    if (owner == cur) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return OB_PREOP_SUCCESS;
-    }
-    ACCESS_MASK tmask = THREAD_SET_CONTEXT | THREAD_SUSPEND_RESUME | THREAD_IMPERSONATE | THREAD_DIRECT_IMPERSONATION;
-    ACCESS_MASK* desired = (Info->Operation == OB_OPERATION_HANDLE_CREATE) ? &Info->Parameters->CreateHandleInformation.DesiredAccess : &Info->Parameters->DuplicateHandleInformation.DesiredAccess;
-    if ((*desired & tmask) == 0) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return OB_PREOP_SUCCESS;
-    }
-    BOOLEAN logok = (KeGetCurrentIrql() == PASSIVE_LEVEL);
-    WCHAR cbuf[512] = { 0 };
-    UNICODE_STRING cexe = { 0 };
-    cexe.Buffer = cbuf;
-    cexe.MaximumLength = sizeof(cbuf);
-
-    if (logok)
-        GetProcessImagePathByPid(cur, &cexe);
-    if (logok && IsWhitelist(&cexe)) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return OB_PREOP_SUCCESS;
-    }
-    ACCESS_MASK old = *desired;
-    *desired &= ~tmask;
-    if ((*desired) != old && logok) {
-        if (cexe.Length == 0) {
-            PEPROCESS eproc = PsGetCurrentProcess();
-            PCSTR n = PsGetProcessImageFileName(eproc);
-            size_t l = n ? strlen(n) : 0;
-            for (size_t i = 0; i < l && i < RTL_NUMBER_OF(cbuf) - 1; i++)
-                cbuf[i] = (WCHAR)n[i];
-            cbuf[l] = 0;
-            cexe.Length = (USHORT)(l * sizeof(WCHAR));
-        }
-        UNICODE_STRING tnone = RTL_CONSTANT_STRING(L"None");
-        LogAnsi3("THREAD_BLOCK", (ULONG)(ULONG_PTR)cur, &cexe, &tnone);
-    }
-    ExReleaseRundownProtection(&g_Rundown);
-    return OB_PREOP_SUCCESS;
-}
-
-NTSTATUS InitInjectProtect(VOID)
-{
-    static UNICODE_STRING obAlt;
-    RtlInitUnicodeString(&obAlt, L"385000");
-
-    g_ObOps = (POB_OPERATION_REGISTRATION)ExAllocatePool2(POOL_FLAG_NON_PAGED, sizeof(OB_OPERATION_REGISTRATION) * 2, 'bOpr');
-    if (!g_ObOps)
-        return STATUS_INSUFFICIENT_RESOURCES;
-
-    RtlZeroMemory(g_ObOps, sizeof(OB_OPERATION_REGISTRATION) * 2);
-    g_ObOps[0].ObjectType = PsProcessType;
-    g_ObOps[0].Operations = OB_OPERATION_HANDLE_CREATE | OB_OPERATION_HANDLE_DUPLICATE;
-    g_ObOps[0].PreOperation = PreProcessCallback;
-    g_ObOps[1].ObjectType = PsThreadType;
-    g_ObOps[1].Operations = OB_OPERATION_HANDLE_CREATE | OB_OPERATION_HANDLE_DUPLICATE;
-    g_ObOps[1].PreOperation = PreThreadCallback;
-
-    RtlZeroMemory(&g_ObReg, sizeof(g_ObReg));
-    g_ObReg.Version = OB_FLT_REGISTRATION_VERSION;
-    g_ObReg.OperationRegistrationCount = 2;
-    g_ObReg.Altitude = obAlt;
-    g_ObReg.RegistrationContext = NULL;
-    g_ObReg.OperationRegistration = g_ObOps;
-
-    NTSTATUS s = ObRegisterCallbacks(&g_ObReg, &g_ObRegHandle);
-    if (!NT_SUCCESS(s)) {
-        ExFreePool2(g_ObOps, 'bOpr', NULL, 0);
-        g_ObOps = NULL;
-        RtlZeroMemory(&g_ObReg, sizeof(g_ObReg));
-    }
-    return s;
-}
-
-VOID UninitInjectProtect(VOID)
-{
-    if (g_ObRegHandle) {
-        ObUnRegisterCallbacks(g_ObRegHandle);
-        g_ObRegHandle = NULL;
-    }
-    if (g_ObOps) {
-        ExFreePool2(g_ObOps, 'bOpr', NULL, 0);
-        g_ObOps = NULL;
-    }
-    RtlZeroMemory(&g_ObReg, sizeof(g_ObReg));
-}

Plugins/Filter/ProtectMatch.c

@@ -1,348 +0,0 @@
-#include <ntifs.h>
-#include "DriverEntry.h"
-#include "ProtectRules.h"
-#include "ProtectMatch.h"
-
-static __forceinline BOOLEAN USOK(PUNICODE_STRING s)
-{
-    return s && s->Buffer && s->Length;
-}
-
-static BOOLEAN WildMatchN(const wchar_t* str, SIZE_T n, const wchar_t* pat)
-{
-    if (*pat == 0)
-        return n == 0;
-
-    if (*pat == L'*') {
-        if (pat[1] == L'*') {
-            for (SIZE_T i = 0; i <= n; ++i)
-                if (WildMatchN(str + i, n - i, pat + 2))
-                    return TRUE;
-            return FALSE;
-        }
-        SIZE_T i = 0;
-        for (; i < n && str[i] != L'\\'; ++i)
-            if (WildMatchN(str + i, n - i, pat + 1))
-                return TRUE;
-        return WildMatchN(str + i, n - i, pat + 1);
-    }
-    if (*pat == L'?')
-        return n > 0 && str[0] != L'\\' && WildMatchN(str + 1, n - 1, pat + 1);
-    if (n == 0)
-        return FALSE;
-
-    WCHAR sc = str[0], pc = *pat;
-    if (sc >= L'A' && sc <= L'Z')
-        sc += 32;
-    if (pc >= L'A' && pc <= L'Z')
-        pc += 32;
-    return sc == pc && WildMatchN(str + 1, n - 1, pat + 1);
-}
-
-static BOOLEAN MatchList(PUNICODE_STRING s, wchar_t** list)
-{
-    if (!USOK(s) || !list) 
-        return FALSE;
-    
-    SIZE_T s_len = s->Length / sizeof(WCHAR);
-    for (SIZE_T i = 0; list[i]; ++i) {
-        wchar_t* pat = list[i];
-        if (wcschr(pat, L'*') || wcschr(pat, L'?')) {
-            if (WildMatchN(s->Buffer, s_len, pat)) 
-                return TRUE;
-        }
-        else {
-            SIZE_T pat_len = wcslen(pat);
-            if (s_len >= pat_len && _wcsnicmp(s->Buffer, pat, pat_len) == 0) {
-                if (s_len == pat_len || s->Buffer[s_len - pat_len - 1] == L'\\') {
-                    return TRUE;
-                }
-            }
-            if (s_len >= pat_len && _wcsnicmp(s->Buffer + s_len - pat_len, pat, pat_len) == 0) {
-                return TRUE;
-            }
-        }
-    }
-    return FALSE;
-}
-
-static wchar_t* MatchListGetRule(PUNICODE_STRING s, wchar_t** list)
-{
-    if (!USOK(s) || !list) 
-        return 0;
-   
-    SIZE_T s_len = s->Length / sizeof(WCHAR);
-    for (SIZE_T i = 0; list[i]; ++i) {
-        wchar_t* pat = list[i];
-        if (wcschr(pat, L'*') || wcschr(pat, L'?')) {
-            if (WildMatchN(s->Buffer, s_len, pat))
-                return pat;
-        }
-        else {
-            SIZE_T pat_len = wcslen(pat);
-            if (s_len >= pat_len && _wcsnicmp(s->Buffer, pat, pat_len) == 0) {
-                if (s_len == pat_len || s->Buffer[s_len - pat_len - 1] == L'\\') {
-                    return pat;
-                }
-            }
-            if (s_len >= pat_len && _wcsnicmp(s->Buffer + s_len - pat_len, pat, pat_len) == 0) {
-                return pat;
-            }
-        }
-    }
-    return 0;
-}
-
-static BOOLEAN StrStrIW(const wchar_t* s, const wchar_t* sub) 
-{
-    if (!s || !sub) 
-        return FALSE;
-    
-    SIZE_T n = wcslen(s), m = wcslen(sub);
-    if (m == 0 || n < m) 
-        return FALSE;
-    
-    for (SIZE_T i = 0; i + m <= n; i++) {
-        if (_wcsnicmp(s + i, sub, m) == 0) 
-            return TRUE;
-    }
-    return FALSE;
-}
-
-static BOOLEAN EndsWithNameUS(PUNICODE_STRING s, const wchar_t* name)
-{
-    if (!USOK(s) || !name)
-        return FALSE;
-    
-    SIZE_T n = s->Length / sizeof(WCHAR);
-    SIZE_T m = wcslen(name);
-    return n >= m && _wcsnicmp(s->Buffer + (n - m), name, m) == 0;
-}
-
-BOOLEAN IsRegistryBlock(PUNICODE_STRING key, PUNICODE_STRING valueName, PUNICODE_STRING exe)
-{
-    if (USOK(key) && WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\MACHINE\\SYSTEM\\ControlSet001\\Services\\**"))
-        return FALSE;
-
-    if (USOK(exe) && IsWhitelist(exe))
-        return FALSE;
-
-    if (USOK(exe) && USOK(key)) {
-        if ((EndsWithNameUS(exe, L"services.exe") || EndsWithNameUS(exe, L"svchost.exe") || EndsWithNameUS(exe, L"sc.exe")) &&
-            WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\**\\SYSTEM\\CurrentControlSet\\Services\\**"))
-            return FALSE;
-
-        if ((EndsWithNameUS(exe, L"powershell.exe") || EndsWithNameUS(exe, L"pwsh.exe")) &&
-            (WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\**\\CurrentVersion\\Internet Settings\\ZoneMap\\**") ||
-                WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\**\\CurrentVersion\\Internet Settings\\ZoneMap") ||
-                WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\**\\CurrentVersion\\Notifications\\Data\\**") ||
-                WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\**\\CurrentVersion\\Notifications\\Data")))
-            return FALSE;
-
-        if ((EndsWithNameUS(exe, L"msiexec.exe") || EndsWithNameUS(exe, L"TrustedInstaller.exe")) &&
-            (WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\**\\CurrentVersion\\Installer\\**") ||
-                WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\**\\CurrentVersion\\Uninstall\\**") ||
-                WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\**\\SYSTEM\\CurrentControlSet\\Services\\**")))
-            return FALSE;
-
-        if (EndsWithNameUS(exe, L"schtasks.exe") && WildMatchN(key->Buffer, key->Length / sizeof(WCHAR), L"\\REGISTRY\\**\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\**"))
-            return FALSE;
-    }
-    if (USOK(key) && MatchBlockReg(key))
-        return TRUE;
-
-    if (USOK(valueName)) {
-        for (SIZE_T i = 0; g_BlockReg[i]; ++i) {
-            wchar_t* pat = g_BlockReg[i];
-            if (!wcschr(pat, L'\\') && !wcschr(pat, L'*') && !wcschr(pat, L'?') && _wcsnicmp(valueName->Buffer, pat, wcslen(pat)) == 0)
-                return TRUE;
-        }
-    }
-    return FALSE;
-}
-
-BOOLEAN GetProcessImagePathByPid(HANDLE pid, PUNICODE_STRING ProcessImagePath)
-{
-    PEPROCESS process = NULL;
-    PVOID buf = NULL;
-    HANDLE h = NULL;
-    NTSTATUS status;
-    ULONG len = 0;
-
-    status = PsLookupProcessByProcessId(pid, &process);
-    if (!NT_SUCCESS(status)) 
-        return FALSE;
-
-    status = ObOpenObjectByPointer(process, OBJ_KERNEL_HANDLE, NULL, PROCESS_QUERY_LIMITED_INFORMATION, *PsProcessType, KernelMode, &h);
-    if (!NT_SUCCESS(status))
-        goto cleanup;
-
-    status = ZwQueryInformationProcess(h, ProcessImageFileName, NULL, 0, &len);
-    if (status != STATUS_INFO_LENGTH_MISMATCH || len == 0)
-        goto cleanup;
-
-    buf = ExAllocatePool2(POOL_FLAG_NON_PAGED, len, 'iPgN');
-    if (!buf)
-        goto cleanup;
-
-    status = ZwQueryInformationProcess(h, ProcessImageFileName, buf, len, &len);
-    if (NT_SUCCESS(status)) {
-        PUNICODE_STRING image = (PUNICODE_STRING)buf;
-        if (image->Buffer && image->Length > 0 && ProcessImagePath->MaximumLength >= image->Length + sizeof(WCHAR)) {
-            RtlCopyMemory(ProcessImagePath->Buffer, image->Buffer, image->Length);
-            ProcessImagePath->Length = image->Length;
-            ProcessImagePath->Buffer[image->Length / sizeof(WCHAR)] = 0;
-            status = TRUE;
-        }
-        else {
-            status = FALSE;
-        }
-    }
-    else {
-        status = FALSE;
-    }
-cleanup:
-    if (buf) 
-        ExFreePool2(buf, 'iPgN', NULL, 0);
-    if (h)
-        ZwClose(h);
-    if (process)
-        ObDereferenceObject(process);
-    return NT_SUCCESS(status);
-}
-
-BOOLEAN IsWhitelist(PUNICODE_STRING s)
-{
-    if (MatchList(s, g_WhitelistExcept)) 
-        return FALSE;
-    return MatchList(s, g_Whitelist);
-}
-
-BOOLEAN MatchBlockReg(PUNICODE_STRING s)
-{
-    return MatchList(s, g_BlockReg);
-}
-
-wchar_t* GetMatchedBlockRegRule(PUNICODE_STRING s) 
-{
-    return MatchListGetRule(s, g_BlockReg);
-}
-
-BOOLEAN MatchBlockFile(PUNICODE_STRING s)
-{
-    return MatchList(s, g_BlockFile);
-}
-
-BOOLEAN MatchBlockRansom(PUNICODE_STRING s)
-{
-    return MatchList(s, g_BlockRansom);
-}
-
-wchar_t* GetMatchedBlockFileRule(PUNICODE_STRING s) 
-{
-    return MatchListGetRule(s, g_BlockFile);
-}
-
-BOOLEAN HasBlockedSuffix(PUNICODE_STRING s)
-{
-    if (!USOK(s)) {
-        return FALSE;
-    }
-    for (SIZE_T i = 0; g_Blocksuffix[i]; ++i) {
-        if (EndsWithNameUS(s, g_Blocksuffix[i])) {
-            return TRUE;
-        }
-    }
-    return FALSE;
-}
-
-BOOLEAN MatchRemoteSuspectBin(PUNICODE_STRING img)
-{
-    if (!USOK(img)) 
-        return FALSE;
-    
-    for (SIZE_T i = 0; g_RemoteSuspectBins[i]; ++i)
-        if (EndsWithNameUS(img, g_RemoteSuspectBins[i]))
-            return TRUE;
-    return FALSE;
-}
-
-BOOLEAN MatchRemoteCommand(PUNICODE_STRING cmd, PUNICODE_STRING img)
-{
-    if (!USOK(cmd)) 
-        return FALSE;
-    
-    const wchar_t* s = cmd->Buffer;
-    for (SIZE_T i = 0; g_RemoteCmdIndicatorsHttp[i]; ++i)
-        if (StrStrIW(s, g_RemoteCmdIndicatorsHttp[i])) 
-            return TRUE;
-    
-    for (SIZE_T i = 0; g_RemoteCmdIndicatorsGeneric[i]; ++i)
-        if (StrStrIW(s, g_RemoteCmdIndicatorsGeneric[i])) 
-            return TRUE;
-    
-    if (USOK(img) && EndsWithNameUS(img, L"cmd.exe")) {
-        for (SIZE_T i = 0; g_RemoteCmdFromCmdExe[i]; ++i)
-            if (StrStrIW(s, g_RemoteCmdFromCmdExe[i])) 
-                return TRUE;
-    }
-    if (USOK(img) && EndsWithNameUS(img, L"rundll32.exe")) {
-        for (SIZE_T i = 0; g_RemoteCmdFromRundll32Exe[i]; ++i)
-            if (StrStrIW(s, g_RemoteCmdFromRundll32Exe[i]))
-                return TRUE;
-    }
-    if (USOK(img) && EndsWithNameUS(img, L"regsvr32.exe") && StrStrIW(s, L"/i:") && StrStrIW(s, L"http")) 
-        return TRUE;
-    
-    if (USOK(img) && EndsWithNameUS(img, L"mshta.exe")) {
-        for (SIZE_T i = 0; g_RemoteCmdFromMshtaExe[i]; ++i)
-            if (StrStrIW(s, g_RemoteCmdFromMshtaExe[i]))
-                return TRUE;
-    }
-    return FALSE;
-}
-
-BOOLEAN MatchScreenCapModule(PUNICODE_STRING mod)
-{
-    if (!USOK(mod)) 
-        return FALSE;
-    
-    for (SIZE_T i = 0; g_ScreenCapModules[i]; ++i)
-        if (EndsWithNameUS(mod, g_ScreenCapModules[i]))
-            return TRUE;
-    return FALSE;
-}
-
-BOOLEAN MatchSuspiciousProcPath(PUNICODE_STRING img)
-{
-    if (!USOK(img)) 
-        return FALSE;
-    
-    const wchar_t* s = img->Buffer;
-    if (StrStrIW(s, L"\\Users\\")) {
-        for (SIZE_T i = 0; g_ScreenUserSubdirs[i]; ++i)
-            if (StrStrIW(s, g_ScreenUserSubdirs[i])) 
-                return TRUE;
-    }
-    for (SIZE_T i = 0; g_ScreenOtherProcNeedles[i]; ++i)
-        if (StrStrIW(s, g_ScreenOtherProcNeedles[i])) 
-            return TRUE;
-    return FALSE;
-}
-
-BOOLEAN MatchClrFromNonFramework(PUNICODE_STRING fullImageName) 
-{
-    if (!USOK(fullImageName)) 
-        return FALSE;
-    
-    const wchar_t* s = fullImageName->Buffer;
-    return (StrStrIW(s, L"\\clr.dll") || StrStrIW(s, L"\\mscorwks.dll")) && !StrStrIW(s, L"\\Windows\\Microsoft.NET\\") && !StrStrIW(s, L"\\Framework");
-}
-
-BOOLEAN IsWhitelistExcept(PUNICODE_STRING img)
-{
-    if (!USOK(img)) 
-        return FALSE;
-    
-    return MatchList(img, g_WhitelistExcept);
-}

Plugins/Filter/ProtectMatch.h

@@ -1,23 +0,0 @@
-#pragma once
-#include <ntifs.h>
-
-wchar_t* GetMatchedBlockRegRule(PUNICODE_STRING s);
-wchar_t* GetMatchedBlockFileRule(PUNICODE_STRING s);
-BOOLEAN GetProcessImagePathByPid(HANDLE pid, PUNICODE_STRING ProcessImagePath);
-
-BOOLEAN IsWhitelist(PUNICODE_STRING s);
-BOOLEAN IsWhitelistExcept(PUNICODE_STRING img);
-
-BOOLEAN MatchBlockReg(PUNICODE_STRING s);
-BOOLEAN IsRegistryBlock(PUNICODE_STRING key, PUNICODE_STRING valueName, PUNICODE_STRING exe);
-
-BOOLEAN MatchBlockFile(PUNICODE_STRING s);
-BOOLEAN MatchBlockRansom(PUNICODE_STRING s);
-BOOLEAN HasBlockedSuffix(PUNICODE_STRING s);
-
-BOOLEAN MatchRemoteSuspectBin(PUNICODE_STRING img);
-BOOLEAN MatchRemoteCommand(PUNICODE_STRING cmd, PUNICODE_STRING img);
-
-BOOLEAN MatchScreenCapModule(PUNICODE_STRING mod);
-BOOLEAN MatchSuspiciousProcPath(PUNICODE_STRING img);
-BOOLEAN MatchClrFromNonFramework(PUNICODE_STRING fullImageName);

Plugins/Filter/ProtectProcess.c

@@ -1,125 +0,0 @@
-#include <ntifs.h>
-#include <ntstrsafe.h>
-#include "DriverEntry.h"
-
-typedef union _PS_PROTECTION {
-    UCHAR Level;
-    struct {
-        UCHAR Type : 3;
-        UCHAR Audit : 1;
-        UCHAR Signer : 4;
-    } Flags;
-} PS_PROTECTION, * PPS_PROTECTION;
-
-static PVOID g_PsSetProcessProtection = NULL;
-static HANDLE g_ProtectedPid = NULL;
-static PVOID g_ObCookie = NULL;
-
-static NTSTATUS SetPPL31(_In_ PEPROCESS proc)
-{
-    if (!proc || !g_PsSetProcessProtection)
-        return STATUS_PROCEDURE_NOT_FOUND;
-
-    PS_PROTECTION p = { 0 };
-    p.Level = 0x31;
-    ((VOID(NTAPI*)(PEPROCESS, PS_PROTECTION))g_PsSetProcessProtection)(proc, p);
-    return STATUS_SUCCESS;
-}
-
-static OB_PREOP_CALLBACK_STATUS ObPreOperation(
-    _In_ PVOID RegistrationContext,
-    _Inout_ POB_PRE_OPERATION_INFORMATION info
-)
-{
-    UNREFERENCED_PARAMETER(RegistrationContext);
-
-    if (!info || info->KernelHandle)
-        return OB_PREOP_SUCCESS;
-
-    if (info->ObjectType == *PsProcessType) {
-        PEPROCESS proc = (PEPROCESS)info->Object;
-        HANDLE pid = PsGetProcessId(proc);
-        if (g_ProtectedPid && pid == g_ProtectedPid && PsGetCurrentProcessId() != g_ProtectedPid) {
-            ACCESS_MASK* mask = (info->Operation == OB_OPERATION_HANDLE_CREATE)
-                ? &info->Parameters->CreateHandleInformation.DesiredAccess
-                : &info->Parameters->DuplicateHandleInformation.DesiredAccess;
-
-            if (*mask & PROCESS_TERMINATE) {
-                LogAnsi3("KILL_ATTEMPT",
-                    (ULONG)(ULONG_PTR)PsGetCurrentProcessId(),
-                    NULL, NULL);
-                *mask &= ~(PROCESS_TERMINATE | PROCESS_VM_WRITE | PROCESS_CREATE_THREAD);
-            }
-        }
-    }
-    return OB_PREOP_SUCCESS;
-}
-
-static VOID ProcessNotify(
-    _In_opt_ PEPROCESS Process,
-    _In_ HANDLE Pid,
-    _In_opt_ PPS_CREATE_NOTIFY_INFO CreateInfo
-)
-{
-    UNICODE_STRING target = RTL_CONSTANT_STRING(L"\\??\\C:\\PYAS.exe");
-    if (CreateInfo) {
-        if (Process && CreateInfo->ImageFileName &&
-            RtlEqualUnicodeString(CreateInfo->ImageFileName, &target, TRUE)) {
-
-            NTSTATUS st = SetPPL31(Process);
-            UNREFERENCED_PARAMETER(st);
-
-            InterlockedExchangePointer((PVOID*)&g_ProtectedPid, Pid);
-            LogAnsi3("PROC_PPL", (ULONG)(ULONG_PTR)Pid, (PUNICODE_STRING)CreateInfo->ImageFileName, NULL);
-        }
-    }
-    else {
-        if (g_ProtectedPid && Pid == g_ProtectedPid) {
-            InterlockedExchangePointer((PVOID*)&g_ProtectedPid, NULL);
-        }
-    }
-}
-
-NTSTATUS InitProcessProtect(VOID)
-{
-    UNICODE_STRING n = RTL_CONSTANT_STRING(L"PsSetProcessProtection");
-    g_PsSetProcessProtection = MmGetSystemRoutineAddress(&n);
-
-    static OB_OPERATION_REGISTRATION ops[1];
-    RtlZeroMemory(ops, sizeof(ops));
-    ops[0].ObjectType = PsProcessType;
-    ops[0].Operations = OB_OPERATION_HANDLE_CREATE | OB_OPERATION_HANDLE_DUPLICATE;
-    ops[0].PreOperation = ObPreOperation;
-    ops[0].PostOperation = NULL;
-
-    UNICODE_STRING alt = RTL_CONSTANT_STRING(L"321000");
-    OB_CALLBACK_REGISTRATION reg;
-    RtlZeroMemory(&reg, sizeof(reg));
-    reg.Version = OB_FLT_REGISTRATION_VERSION;
-    reg.OperationRegistrationCount = 1;
-    reg.OperationRegistration = ops;
-    reg.RegistrationContext = NULL;
-    reg.Altitude = alt;
-
-    NTSTATUS s = ObRegisterCallbacks(&reg, &g_ObCookie);
-    if (!NT_SUCCESS(s)) {
-        g_ObCookie = NULL;
-        return s;
-    }
-    s = PsSetCreateProcessNotifyRoutineEx(ProcessNotify, FALSE);
-    if (!NT_SUCCESS(s)) {
-        ObUnRegisterCallbacks(g_ObCookie);
-        g_ObCookie = NULL;
-        return s;
-    }
-    return STATUS_SUCCESS;
-}
-
-VOID UninitProcessProtect(VOID)
-{
-    if (g_ObCookie) {
-        ObUnRegisterCallbacks(g_ObCookie);
-        g_ObCookie = NULL;
-    }
-    PsSetCreateProcessNotifyRoutineEx(ProcessNotify, TRUE);
-}

Plugins/Filter/ProtectProcess.cpp

@@ -0,0 +1,137 @@
+#include "DriverCommon.h"
+
+PVOID ObRegistrationHandle = NULL;
+OB_CALLBACK_REGISTRATION ObRegistration;
+OB_OPERATION_REGISTRATION ObCallbacks[1];
+
+static BOOLEAN IsSystemImage(PUNICODE_STRING FullImageName) {
+    if (!FullImageName || !FullImageName->Buffer) return FALSE;
+
+    if (WildcardMatch(L"*\\Windows\\System32\\*", FullImageName->Buffer, FullImageName->Length) ||
+        WildcardMatch(L"*\\Windows\\SysWOW64\\*", FullImageName->Buffer, FullImageName->Length) ||
+        WildcardMatch(L"*\\Windows\\WinSxS\\*", FullImageName->Buffer, FullImageName->Length)) {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+VOID ImageLoadNotify(PUNICODE_STRING FullImageName, HANDLE ProcessId, PIMAGE_INFO ImageInfo) {
+    UNREFERENCED_PARAMETER(ImageInfo);
+
+    if (KeGetCurrentIrql() > APC_LEVEL) return;
+    if (!FullImageName || !FullImageName->Buffer) return;
+    if (ProcessId == (HANDLE)0) return;
+
+    if (IsSystemImage(FullImageName)) return;
+
+    if (IsTargetProtected(ProcessId)) {
+        if (CheckFileExtensionRule(FullImageName)) {
+            SendMessageToUser(6001, (ULONG)(ULONG_PTR)ProcessId, FullImageName->Buffer, FullImageName->Length);
+        }
+    }
+}
+
+static BOOLEAN IsBlacklistedAdminTool(HANDLE ProcessId) {
+    if (KeGetCurrentIrql() > APC_LEVEL) return FALSE;
+
+    NTSTATUS status;
+    BOOLEAN isBlacklisted = FALSE;
+    PEPROCESS Process = NULL;
+    PUNICODE_STRING imageFileName = NULL;
+
+    status = PsLookupProcessByProcessId(ProcessId, &Process);
+    if (!NT_SUCCESS(status)) return FALSE;
+
+    status = SeLocateProcessImageName(Process, &imageFileName);
+
+    if (NT_SUCCESS(status) && imageFileName) {
+        if (imageFileName->Buffer) {
+            if (WildcardMatch(L"*Taskmgr.exe", imageFileName->Buffer, imageFileName->Length) ||
+                WildcardMatch(L"*taskkill.exe", imageFileName->Buffer, imageFileName->Length) ||
+                WildcardMatch(L"*ProcessHacker.exe", imageFileName->Buffer, imageFileName->Length) ||
+                WildcardMatch(L"*procmon.exe", imageFileName->Buffer, imageFileName->Length)) {
+                isBlacklisted = TRUE;
+            }
+        }
+        ExFreePool(imageFileName);
+    }
+
+    ObDereferenceObject(Process);
+    return isBlacklisted;
+}
+
+static OB_PREOP_CALLBACK_STATUS PreOpenProcess(PVOID RegistrationContext, POB_PRE_OPERATION_INFORMATION OperationInformation) {
+    UNREFERENCED_PARAMETER(RegistrationContext);
+
+    if (OperationInformation->KernelHandle) return OB_PREOP_SUCCESS;
+
+    PEPROCESS TargetProcess = (PEPROCESS)OperationInformation->Object;
+    if (!TargetProcess) return OB_PREOP_SUCCESS;
+
+    HANDLE TargetPid = PsGetProcessId(TargetProcess);
+    HANDLE SourcePid = PsGetCurrentProcessId();
+
+    if (SourcePid == TargetPid) return OB_PREOP_SUCCESS;
+
+    if ((ULONG)(ULONG_PTR)SourcePid == GlobalData.PyasPid) return OB_PREOP_SUCCESS;
+    if (SourcePid == (HANDLE)4) return OB_PREOP_SUCCESS;
+
+    BOOLEAN bProtected = IsTargetProtected(TargetPid);
+
+    if (bProtected) {
+        BOOLEAN bIsInstaller = IsInstallerProcess(SourcePid);
+
+        if (bIsInstaller) {
+            if (IsBlacklistedAdminTool(SourcePid)) {
+                bIsInstaller = FALSE;
+            }
+        }
+
+        if (bIsInstaller) return OB_PREOP_SUCCESS;
+
+        ACCESS_MASK DenyMask = PROCESS_TERMINATE |
+            PROCESS_VM_OPERATION |
+            PROCESS_VM_WRITE |
+            PROCESS_CREATE_THREAD |
+            PROCESS_VM_READ |
+            PROCESS_DUP_HANDLE |
+            PROCESS_SUSPEND_RESUME |
+            PROCESS_SET_INFORMATION |
+            PROCESS_SET_QUOTA;
+
+        OperationInformation->Parameters->CreateHandleInformation.DesiredAccess &= ~DenyMask;
+        OperationInformation->Parameters->CreateHandleInformation.OriginalDesiredAccess &= ~DenyMask;
+
+        if (OperationInformation->Operation == OB_OPERATION_HANDLE_DUPLICATE) {
+            OperationInformation->Parameters->DuplicateHandleInformation.DesiredAccess &= ~DenyMask;
+            OperationInformation->Parameters->DuplicateHandleInformation.OriginalDesiredAccess &= ~DenyMask;
+        }
+    }
+
+    return OB_PREOP_SUCCESS;
+}
+
+NTSTATUS InitializeProcessProtection() {
+    static UNICODE_STRING Altitude = { 0 };
+    RtlInitUnicodeString(&Altitude, L"320000");
+
+    ObCallbacks[0].ObjectType = PsProcessType;
+    ObCallbacks[0].Operations = OB_OPERATION_HANDLE_CREATE | OB_OPERATION_HANDLE_DUPLICATE;
+    ObCallbacks[0].PreOperation = PreOpenProcess;
+    ObCallbacks[0].PostOperation = NULL;
+
+    ObRegistration.Version = OB_FLT_REGISTRATION_VERSION;
+    ObRegistration.OperationRegistrationCount = 1;
+    ObRegistration.Altitude = Altitude;
+    ObRegistration.RegistrationContext = NULL;
+    ObRegistration.OperationRegistration = ObCallbacks;
+
+    return ObRegisterCallbacks(&ObRegistration, &ObRegistrationHandle);
+}
+
+VOID UninitializeProcessProtection() {
+    if (ObRegistrationHandle) {
+        ObUnRegisterCallbacks(ObRegistrationHandle);
+        ObRegistrationHandle = NULL;
+    }
+}

Plugins/Filter/ProtectRegistry.c

@@ -1,118 +0,0 @@
-#include <ntifs.h>
-#include "DriverEntry.h"
-#include "ProtectMatch.h"
-
-static BOOLEAN QueryRegPathFromObject(PVOID KeyObject, PUNICODE_STRING OutPath, POBJECT_NAME_INFORMATION* OutInfo)
-{
-    ULONG len = 0;
-    NTSTATUS s = ObQueryNameString(KeyObject, NULL, 0, &len);
-    if (s != STATUS_INFO_LENGTH_MISMATCH)
-        return FALSE;
-
-    POBJECT_NAME_INFORMATION p = (POBJECT_NAME_INFORMATION)ExAllocatePool2(POOL_FLAG_NON_PAGED, len, 'rgeR');
-    if (!p)
-        return FALSE;
-
-    s = ObQueryNameString(KeyObject, p, len, &len);
-    if (!NT_SUCCESS(s) || !p->Name.Buffer || p->Name.Length == 0) {
-        ExFreePool2(p, 'rgeR', NULL, 0);
-        return FALSE;
-    }
-    *OutInfo = p;
-    OutPath->Buffer = p->Name.Buffer;
-    OutPath->Length = p->Name.Length;
-    OutPath->MaximumLength = p->Name.Length;
-    return TRUE;
-}
-
-NTSTATUS RegistryProtectCallback(PVOID ctx, PVOID arg1, PVOID arg2)
-{
-    UNREFERENCED_PARAMETER(ctx);
-    if (g_Unloading)
-        return STATUS_SUCCESS;
-    if (!ExAcquireRundownProtection(&g_Rundown))
-        return STATUS_SUCCESS;
-
-    REG_NOTIFY_CLASS type = (REG_NOTIFY_CLASS)(ULONG_PTR)arg1;
-    NTSTATUS status = STATUS_SUCCESS;
-    UNICODE_STRING checkReg = { 0 };
-    POBJECT_NAME_INFORMATION nameInfo = NULL;
-
-    UNICODE_STRING exe = { 0 };
-    WCHAR exeBuf[260] = { 0 };
-    exe.Buffer = exeBuf;
-    exe.MaximumLength = sizeof(exeBuf);
-    exe.Length = 0;
-
-    HANDLE pid = PsGetCurrentProcessId();
-    if (pid == (HANDLE)0 || pid == (HANDLE)4) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return STATUS_SUCCESS;
-    }
-    PUNICODE_STRING valueName = NULL;
-    BOOLEAN need_log = FALSE;
-    BOOLEAN canQuery = (KeGetCurrentIrql() == PASSIVE_LEVEL);
-
-    if (type == RegNtPreSetValueKey) {
-        PREG_SET_VALUE_KEY_INFORMATION s = (PREG_SET_VALUE_KEY_INFORMATION)arg2;
-        valueName = s->ValueName;
-        if (canQuery)
-            QueryRegPathFromObject(s->Object, &checkReg, &nameInfo);
-    }
-    else if (type == RegNtPreDeleteValueKey) {
-        PREG_DELETE_VALUE_KEY_INFORMATION d = (PREG_DELETE_VALUE_KEY_INFORMATION)arg2;
-        valueName = d->ValueName;
-        if (canQuery)
-            QueryRegPathFromObject(d->Object, &checkReg, &nameInfo);
-    }
-    else if (type == RegNtPreDeleteKey) {
-        PREG_DELETE_KEY_INFORMATION d = (PREG_DELETE_KEY_INFORMATION)arg2;
-        if (canQuery)
-            QueryRegPathFromObject(d->Object, &checkReg, &nameInfo);
-    }
-    else if (type == RegNtPreRenameKey) {
-        PREG_RENAME_KEY_INFORMATION r = (PREG_RENAME_KEY_INFORMATION)arg2;
-        if (canQuery)
-            QueryRegPathFromObject(r->Object, &checkReg, &nameInfo);
-    }
-    else if (type == RegNtPreCreateKeyEx) {
-        PREG_CREATE_KEY_INFORMATION c = (PREG_CREATE_KEY_INFORMATION)arg2;
-        if (c->CompleteName)
-            checkReg = *c->CompleteName;
-    }
-    else if (type == RegNtPreReplaceKey) {
-        PREG_REPLACE_KEY_INFORMATION rk = (PREG_REPLACE_KEY_INFORMATION)arg2;
-        if (canQuery)
-            QueryRegPathFromObject(rk->Object, &checkReg, &nameInfo);
-    }
-    else if (type == RegNtPreSaveKey) {
-        PREG_SAVE_KEY_INFORMATION sk = (PREG_SAVE_KEY_INFORMATION)arg2;
-        if (canQuery)
-            QueryRegPathFromObject(sk->Object, &checkReg, &nameInfo);
-    }
-    else if (type == RegNtPreRestoreKey) {
-        PREG_RESTORE_KEY_INFORMATION res = (PREG_RESTORE_KEY_INFORMATION)arg2;
-        if (canQuery)
-            QueryRegPathFromObject(res->Object, &checkReg, &nameInfo);
-    }
-    else if (type == RegNtPreLoadKey) {
-        PREG_LOAD_KEY_INFORMATION lk = (PREG_LOAD_KEY_INFORMATION)arg2;
-        if (lk->KeyName)
-            checkReg = *lk->KeyName;
-    }
-
-    if (checkReg.Buffer || (valueName && valueName->Buffer)) {
-        if (canQuery)
-            GetProcessImagePathByPid(pid, &exe);
-        if (IsRegistryBlock(&checkReg, valueName, &exe)) {
-            need_log = TRUE;
-            status = STATUS_ACCESS_DENIED;
-        }
-    }
-    if (nameInfo)
-        ExFreePool2(nameInfo, 'rgeR', NULL, 0);
-    if (need_log)
-        LogAnsi3("REG_BLOCK", (ULONG)(ULONG_PTR)pid, &exe, &checkReg);
-    ExReleaseRundownProtection(&g_Rundown);
-    return status;
-}

Plugins/Filter/ProtectRegistry.cpp

@@ -0,0 +1,51 @@
+#include "DriverCommon.h"
+
+LARGE_INTEGER Cookie;
+
+static NTSTATUS RegistryCallback(PVOID CallbackContext, PVOID Argument1, PVOID Argument2) {
+    UNREFERENCED_PARAMETER(CallbackContext);
+
+    if (KeGetCurrentIrql() > APC_LEVEL) return STATUS_SUCCESS;
+
+    REG_NOTIFY_CLASS Class = (REG_NOTIFY_CLASS)(ULONG_PTR)Argument1;
+
+    if (Class == RegNtPreSetValueKey || Class == RegNtPreDeleteKey || Class == RegNtPreCreateKey) {
+        REG_SET_VALUE_KEY_INFORMATION* Info = (REG_SET_VALUE_KEY_INFORMATION*)Argument2;
+        PCUNICODE_STRING KeyName = NULL;
+
+        if (!NT_SUCCESS(CmCallbackGetKeyObjectIDEx(&Cookie, Info->Object, NULL, &KeyName, 0))) {
+            return STATUS_SUCCESS;
+        }
+
+        if (KeyName && KeyName->Buffer) {
+            if (CheckRegistryRule(KeyName)) {
+                HANDLE Pid = PsGetCurrentProcessId();
+                if (!IsProcessTrusted(Pid)) {
+                    if (!IsInstallerProcess(Pid)) {
+                        SendMessageToUser(3001, (ULONG)(ULONG_PTR)Pid, KeyName->Buffer, KeyName->Length);
+                        CmCallbackReleaseKeyObjectIDEx(KeyName);
+                        return STATUS_ACCESS_DENIED;
+                    }
+                }
+            }
+        }
+
+        if (KeyName) {
+            CmCallbackReleaseKeyObjectIDEx(KeyName);
+        }
+    }
+    return STATUS_SUCCESS;
+}
+
+NTSTATUS InitializeRegistryProtection(PDRIVER_OBJECT DriverObject) {
+    UNICODE_STRING Altitude;
+    RtlInitUnicodeString(&Altitude, L"320000");
+    return CmRegisterCallbackEx(RegistryCallback, &Altitude, DriverObject, NULL, &Cookie, NULL);
+}
+
+VOID UninitializeRegistryProtection() {
+    if (Cookie.QuadPart != 0) {
+        CmUnRegisterCallback(Cookie);
+        Cookie.QuadPart = 0;
+    }
+}

Plugins/Filter/ProtectRemote.c

@@ -1,83 +0,0 @@
-#include <ntifs.h>
-#include "DriverEntry.h"
-#include "ProtectMatch.h"
-
-static BOOLEAN g_RemoteNotifyEnabled = FALSE;
-
-static VOID ProcessNotifyEx(PEPROCESS Process, HANDLE ProcessId, PPS_CREATE_NOTIFY_INFO CreateInfo)
-{
-    UNREFERENCED_PARAMETER(Process);
-    UNREFERENCED_PARAMETER(ProcessId);
-    
-    if (!CreateInfo)
-        return;
-    if (g_Unloading)
-        return;
-    if (KeGetCurrentIrql() != PASSIVE_LEVEL)
-        return;
-    if (!ExAcquireRundownProtection(&g_Rundown))
-        return;
-
-    HANDLE ppid = CreateInfo->CreatingThreadId.UniqueProcess;
-    if (ppid == (HANDLE)0 || ppid == (HANDLE)4) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return;
-    }
-    UNICODE_STRING parent = { 0 };
-    WCHAR pbuf[512] = { 0 };
-    parent.Buffer = pbuf;
-    parent.MaximumLength = sizeof(pbuf);
-
-    if (!GetProcessImagePathByPid(ppid, &parent)) {
-        PEPROCESS eproc = PsGetCurrentProcess();
-        PCSTR n = PsGetProcessImageFileName(eproc);
-        size_t l = n ? strlen(n) : 0;
-        for (size_t i = 0; i < l && i < RTL_NUMBER_OF(pbuf) - 1; i++)
-            pbuf[i] = (WCHAR)n[i];
-        pbuf[l] = 0;
-        parent.Length = (USHORT)(l * sizeof(WCHAR));
-    }
-    if (IsWhitelist(&parent)) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return;
-    }
-    UNICODE_STRING img = { 0 };
-    if (CreateInfo->ImageFileName)
-        img = *CreateInfo->ImageFileName;
-    UNICODE_STRING cmd = { 0 };
-    if (CreateInfo->CommandLine)
-        cmd = *CreateInfo->CommandLine;
-
-    BOOLEAN suspect = FALSE;
-    if (MatchRemoteSuspectBin(&img) && MatchRemoteCommand(&cmd, &img))
-        suspect = TRUE;
-
-    if (suspect) {
-        CreateInfo->CreationStatus = STATUS_ACCESS_DENIED;
-        if (cmd.Buffer && cmd.Length)
-            LogAnsi3("REMOTE_BLOCK", (ULONG)(ULONG_PTR)ppid, &parent, &cmd);
-        else if (img.Buffer && img.Length)
-            LogAnsi3("REMOTE_BLOCK", (ULONG)(ULONG_PTR)ppid, &parent, &img);
-        else {
-            UNICODE_STRING none = RTL_CONSTANT_STRING(L"None");
-            LogAnsi3("REMOTE_BLOCK", (ULONG)(ULONG_PTR)ppid, &parent, &none);
-        }
-    }
-    ExReleaseRundownProtection(&g_Rundown);
-}
-
-NTSTATUS InitRemoteProtect(VOID)
-{
-    NTSTATUS s = PsSetCreateProcessNotifyRoutineEx(ProcessNotifyEx, FALSE);
-    if (NT_SUCCESS(s))
-        g_RemoteNotifyEnabled = TRUE;
-    return s;
-}
-
-VOID UninitRemoteProtect(VOID)
-{
-    if (g_RemoteNotifyEnabled) {
-        PsSetCreateProcessNotifyRoutineEx(ProcessNotifyEx, TRUE);
-        g_RemoteNotifyEnabled = FALSE;
-    }
-}

Plugins/Filter/ProtectRules.c

@@ -1,266 +0,0 @@
-#include <ntifs.h>
-#include "ProtectRules.h"
-
-wchar_t* g_Whitelist[] = {
-    L"\\Device\\HarddiskVolume*\\Program*\\**",
-    L"\\Device\\HarddiskVolume*\\Users\\*\\AppData\\**",
-    L"**\\PYAS*.exe",
-    L"Registry",
-    L"vmmem*",
-    NULL
-};
-
-wchar_t* g_WhitelistExcept[] = {
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\vds.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\bcdedit.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\schtasks.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\ntoskrnl.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\wbadmin.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\bcdboot.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\dism.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\bootsect.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\net1.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\msiexec.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\lsass.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\csrss.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\smss.exe",
-    L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\wininit.exe",
-    NULL
-};
-
-wchar_t* g_AttachDisk[] = {
-    L"\\FileSystem\\Ntfs",
-    L"\\FileSystem\\Refs",
-    L"\\FileSystem\\Fastfat",
-    L"\\FileSystem\\exfat",
-    L"\\FileSystem\\Udfs",
-    NULL
-};
-
-wchar_t* g_BlockFile[] = {
-    L"\\Device\\Harddisk*\\DR*",
-    L"\\Device\\Harddisk*\\Partition\\**",
-    L"\\Device\\HarddiskVolume*\\Boot\\**",
-    L"\\Device\\HarddiskVolume*\\EFI\\**",
-    L"\\Device\\HarddiskVolume*\\bootmgr",
-    L"\\Device\\HarddiskVolume*\\Recovery\\**",
-    L"\\Device\\HarddiskVolume*\\System Volume Information\\**",
-    L"\\Device\\HarddiskVolume*\\Windows\\**",
-    L"\\Device\\HarddiskVolume*\\$*\\**",
-    L"\\Device\\HarddiskVolume*\\ProgramData\\PYAS\\**",
-    L"**\\PYAS.exe",
-    L"**\\CON**",
-    L"**\\PRN**",
-    L"**\\AUX**",
-    L"**\\NUL**",
-    L"**\\COM*\\**",
-    L"**\\LPT*\\**",
-    L"**\\evil*.exe",
-    L"**\\OSDATA**",
-    NULL
-};
-
-wchar_t* g_BlockRansom[] = {
-    L"\\Device\\HarddiskVolume*\\Users\\*\\Desktop\\**",
-    L"\\Device\\HarddiskVolume*\\Users\\*\\Downloads\\**",
-    L"\\Device\\HarddiskVolume*\\Users\\*\\Documents\\**",
-    L"\\Device\\HarddiskVolume*\\Users\\*\\Music\\**",
-    L"\\Device\\HarddiskVolume*\\Users\\*\\Pictures\\**",
-    L"\\Device\\HarddiskVolume*\\Users\\*\\Videos\\**",
-    L"\\Device\\HarddiskVolume*\\Users\\*\\OneDrive\\**",
-    NULL
-};
-
-wchar_t* g_Blocksuffix[] = {
-    L".exe", L".dll", L".sys", L".com", L".scr",
-    L".zip", L".7z", L".rar", L".tar", L".gz",
-    L".js", L".bat", L".cmd", L".ps1", L".vbs",
-    L".ppt", L".pptx", L".wps", L".txt", L".rtf",
-    L".pdf", L".xls", L".xlsx", L".doc", L".docx",
-    L".jpg", L".jpeg", L".png", L".webp", L".gif",
-    L".mp3", L".wav", L".aac", L".ogg", L".flac",
-    L".mp4", L".avi", L".mov", L".wmv", L".mkv",
-    L".aux", L".cur", L".mui", L".ttf", L".efi",
-    NULL
-};
-
-wchar_t* g_BlockReg[] = {
-    L"\\REGISTRY\\MACHINE\\BCD00000000\\**",
-    L"\\REGISTRY\\MACHINE\\SAM\\**",
-    L"\\REGISTRY\\MACHINE\\SECURITY\\**",
-    L"\\REGISTRY\\USER\\*_Classes\\*\\shell\\open\\command\\**",
-    L"\\REGISTRY\\USER\\S-1-*\\SOFTWARE\\NetWire\\**",
-    L"\\REGISTRY\\USER\\S-1-*\\SOFTWARE\\Remcos*\\**",
-    L"\\REGISTRY\\USER\\S-1-*\\SOFTWARE\\DC3_FEXEC\\**",
-    L"DisableAntiSpyware",
-    L"DisableWindowsUpdateAccess",
-    L"EnableLUA",
-    L"ConsentPromptBehaviorAdmin",
-    L"NoControlPanel",
-    L"NoDrives",
-    L"NoFileMenu",
-    L"NoFind",
-    L"NoStartMenuPinnedList",
-    L"NoSetFolders",
-    L"NoSetFolderOptions",
-    L"NoViewOnDrive",
-    L"NoClose",
-    L"NoDesktop",
-    L"NoLogoff",
-    L"NoFolderOptions",
-    L"RestrictRun",
-    L"NoViewContextMenu",
-    L"HideClock",
-    L"NoStartMenuMyGames",
-    L"NoStartMenuMyMusic",
-    L"DisableCMD",
-    L"NoAddingComponents",
-    L"NoWinKeys",
-    L"NoStartMenuLogOff",
-    L"NoSimpleNetIDList",
-    L"NoLowDiskSpaceChecks",
-    L"DisableLockWorkstation",
-    L"Restrict_Run",
-    L"DisableTaskMgr",
-    L"DisableRegistryTools",
-    L"DisableChangePassword",
-    L"Wallpaper",
-    L"NoComponents",
-    L"NoStartMenuMorePrograms",
-    L"NoActiveDesktop",
-    L"NoSetActiveDesktop",
-    L"NoRecentDocsMenu",
-    L"NoWindowsUpdate",
-    L"NoChangeStartMenu",
-    L"NoFavoritesMenu",
-    L"NoRecentDocsHistory",
-    L"NoSetTaskbar",
-    L"NoSMHelp",
-    L"NoTrayContextMenu",
-    L"NoManageMyComputerVerb",
-    L"NoRealMode",
-    L"NoRun",
-    L"ClearRecentDocsOnExit",
-    L"NoActiveDesktopChanges",
-    L"NoStartMenuNetworkPlaces",
-    L"NoLockScreen",
-    L"HideFastUserSwitching",
-    L"ConsentPromptBehaviorUser",
-    L"EnableSecureUIAPaths",
-    L"NoSRM",
-    L"NoInteractiveServices",
-    L"ShutdownWithoutLogon",
-    L"AutoAdminLogon",
-    L"ImagePath",
-    L"BootExecute",
-    L"SubSystems",
-    L"FirmwareBootDevice",
-    L"BootDriverFlags",
-    L"SystemStartOptions",
-    L"CrashDumpEnabled",
-    L"DisableAutomaticRestartOnFailure",
-    L"SystemBiosVersion",
-    L"NoTheme",
-    L"PendingFileRenameOperations",
-    L"SystemSetupInProgress",
-    L"CmdLine",
-    L"SetupType",
-    L"AutoReboot",
-    L"Userinit",
-    L"UIHost",
-    L"Debugger",
-    L"DefaultUserName",
-    L"DefaultPassword",
-    L"AltDefaultUserName",
-    L"AltDefaultPassword",
-    L"DisableCAD",
-    L"LegalNoticeCaption",
-    L"LegalNoticeText",
-    NULL
-};
-
-wchar_t* g_RemoteSuspectBins[] = {
-    L"powershell.exe",
-    L"pwsh.exe",
-    L"wscript.exe",
-    L"cscript.exe",
-    L"mshta.exe",
-    L"rundll32.exe",
-    L"regsvr32.exe",
-    L"cmd.exe",
-    L"bitsadmin.exe",
-    L"msbuild.exe",
-    L"installutil.exe",
-    L"wmic.exe",
-    NULL
-};
-
-wchar_t* g_RemoteCmdIndicatorsHttp[] = {
-    L"http://",
-    L"https://",
-    NULL
-};
-
-wchar_t* g_RemoteCmdIndicatorsGeneric[] = {
-    L"-enc",
-    L"-e",
-    L"-encodedcommand",
-    L"frombase64string(",
-    L"iex(",
-    L"downloadstring(",
-    NULL
-};
-
-wchar_t* g_RemoteCmdFromCmdExe[] = {
-    L"powershell",
-    L"pwsh",
-    L"mshta",
-    L"rundll32",
-    L"wscript",
-    L"cscript",
-    NULL
-};
-
-wchar_t* g_RemoteCmdFromRundll32Exe[] = {
-    L".dll,",
-    L"javascript:",
-    L"http",
-    NULL
-};
-
-wchar_t* g_RemoteCmdRegsvr32Need[] = {
-    L"/i:",
-    NULL
-};
-
-wchar_t* g_RemoteCmdFromMshtaExe[] = {
-    L"http://",
-    L"https://",
-    NULL
-};
-
-wchar_t* g_ScreenCapModules[] = {
-    L"windows.graphics.capture.dll",
-    L"dxgi.dll",
-    L"d3d11.dll",
-    L"dwmapi.dll",
-    L"dcomp.dll",
-    L"mfreadwrite.dll",
-    L"mfplat.dll",
-    L"opengl32.dll",
-    L"gdi32full.dll",
-    L"win32u.dll",
-    NULL
-};
-
-wchar_t* g_ScreenUserSubdirs[] = {
-    L"\\AppData\\",
-    L"\\Temp\\",
-    L"\\Downloads\\",
-    NULL
-};
-
-wchar_t* g_ScreenOtherProcNeedles[] = {
-    L"\\ProgramData\\",
-    NULL
-};

Plugins/Filter/ProtectRules.cpp

@@ -0,0 +1,487 @@
+#include "DriverCommon.h"
+
+constexpr auto MAX_TRACKERS = 64;
+constexpr auto RANSOM_TIME_WINDOW_MS = 3000;
+constexpr auto RANSOM_COUNT_THRESHOLD = 5;
+constexpr auto HIGH_ENTROPY_THRESHOLD = 15;
+
+typedef struct _RANSOM_TRACKER {
+    HANDLE ProcessId;
+    ULONG ActivityCount;
+    LARGE_INTEGER LastActivityTime;
+} RANSOM_TRACKER, * PRANSOM_TRACKER;
+
+RANSOM_TRACKER RansomTrackers[MAX_TRACKERS];
+
+static BOOLEAN HasSuffix(PCUNICODE_STRING String, PCWSTR Suffix) {
+    if (!String || !String->Buffer || !Suffix) return FALSE;
+
+    SIZE_T SuffixLenBytes = 0;
+    while (Suffix[SuffixLenBytes / sizeof(WCHAR)] != L'\0') {
+        SuffixLenBytes += sizeof(WCHAR);
+    }
+
+    if (String->Length < SuffixLenBytes) return FALSE;
+
+    UNICODE_STRING SuffixPart{};
+    SuffixPart.Buffer = (PWCH)((PUCHAR)String->Buffer + String->Length - SuffixLenBytes);
+    SuffixPart.Length = (USHORT)SuffixLenBytes;
+    SuffixPart.MaximumLength = (USHORT)SuffixLenBytes;
+
+    UNICODE_STRING TargetSuffix;
+    RtlInitUnicodeString(&TargetSuffix, Suffix);
+
+    return RtlEqualUnicodeString(&SuffixPart, &TargetSuffix, TRUE);
+}
+
+BOOLEAN WildcardMatch(PCWSTR Pattern, PCWSTR String, USHORT StringLengthBytes) {
+    if (!Pattern || !String) return FALSE;
+
+    PCWSTR mp = NULL;
+    PCWSTR cp = NULL;
+    PCWSTR StringEnd = (PCWSTR)((PUCHAR)String + StringLengthBytes);
+
+    while ((PUCHAR)String < (PUCHAR)StringEnd) {
+        WCHAR pChar = *Pattern;
+        WCHAR sChar = *String;
+
+        if (pChar == L'*') {
+            if (!*++Pattern) return TRUE;
+            mp = Pattern;
+            cp = String + 1;
+        }
+        else if ((RtlDowncaseUnicodeChar(pChar) == RtlDowncaseUnicodeChar(sChar)) || pChar == L'?') {
+            Pattern++;
+            String++;
+        }
+        else if (mp) {
+            Pattern = mp;
+            String = cp++;
+        }
+        else {
+            return FALSE;
+        }
+    }
+
+    while (*Pattern == L'*') Pattern++;
+    return !*Pattern && ((PUCHAR)String >= (PUCHAR)StringEnd);
+}
+
+const PCWSTR RegistryBlockList[] = {
+    L"\\REGISTRY\\MACHINE\\BCD00000000\\*",
+    L"\\REGISTRY\\MACHINE\\SAM\\*",
+    L"\\REGISTRY\\MACHINE\\SECURITY\\*",
+    L"\\REGISTRY\\USER\\*_Classes\\*\\shell\\open\\command\\*",
+    L"\\REGISTRY\\USER\\S-1-*\\SOFTWARE\\NetWire\\*",
+    L"\\REGISTRY\\USER\\S-1-*\\SOFTWARE\\Remcos*\\*",
+    L"\\REGISTRY\\USER\\S-1-*\\SOFTWARE\\DC3_FEXEC\\*",
+    L"*\\DisableAntiSpyware",
+    L"*\\DisableWindowsUpdateAccess",
+    L"*\\EnableLUA",
+    L"*\\ConsentPromptBehaviorAdmin",
+    L"*\\NoControlPanel",
+    L"*\\NoDrives",
+    L"*\\NoFileMenu",
+    L"*\\NoFind",
+    L"*\\NoStartMenuPinnedList",
+    L"*\\NoSetFolders",
+    L"*\\NoSetFolderOptions",
+    L"*\\NoViewOnDrive",
+    L"*\\NoClose",
+    L"*\\NoDesktop",
+    L"*\\NoLogoff",
+    L"*\\NoFolderOptions",
+    L"*\\RestrictRun",
+    L"*\\NoViewContextMenu",
+    L"*\\HideClock",
+    L"*\\NoStartMenuMyGames",
+    L"*\\NoStartMenuMyMusic",
+    L"*\\DisableCMD",
+    L"*\\NoAddingComponents",
+    L"*\\NoWinKeys",
+    L"*\\NoStartMenuLogOff",
+    L"*\\NoSimpleNetIDList",
+    L"*\\NoLowDiskSpaceChecks",
+    L"*\\DisableLockWorkstation",
+    L"*\\Restrict_Run",
+    L"*\\DisableTaskMgr",
+    L"*\\DisableRegistryTools",
+    L"*\\DisableChangePassword",
+    L"*\\Wallpaper",
+    L"*\\NoComponents",
+    L"*\\NoStartMenuMorePrograms",
+    L"*\\NoActiveDesktop",
+    L"*\\NoSetActiveDesktop",
+    L"*\\NoRecentDocsMenu",
+    L"*\\NoWindowsUpdate",
+    L"*\\NoChangeStartMenu",
+    L"*\\NoFavoritesMenu",
+    L"*\\NoRecentDocsHistory",
+    L"*\\NoSetTaskbar",
+    L"*\\NoSMHelp",
+    L"*\\NoTrayContextMenu",
+    L"*\\NoManageMyComputerVerb",
+    L"*\\NoRealMode",
+    L"*\\NoRun",
+    L"*\\ClearRecentDocsOnExit",
+    L"*\\NoActiveDesktopChanges",
+    L"*\\NoStartMenuNetworkPlaces",
+    L"*\\NoLockScreen",
+    L"*\\HideFastUserSwitching",
+    L"*\\ConsentPromptBehaviorUser",
+    L"*\\EnableSecureUIAPaths",
+    L"*\\NoSRM",
+    L"*\\NoInteractiveServices",
+    L"*\\ShutdownWithoutLogon",
+    L"*\\AutoAdminLogon",
+    L"*\\ImagePath",
+    L"*\\BootExecute",
+    L"*\\SubSystems",
+    L"*\\FirmwareBootDevice",
+    L"*\\BootDriverFlags",
+    L"*\\SystemStartOptions",
+    L"*\\CrashDumpEnabled",
+    L"*\\DisableAutomaticRestartOnFailure",
+    L"*\\SystemBiosVersion",
+    L"*\\NoTheme",
+    L"*\\PendingFileRenameOperations",
+    L"*\\SystemSetupInProgress",
+    L"*\\CmdLine",
+    L"*\\SetupType",
+    L"*\\AutoReboot",
+    L"*\\Userinit",
+    L"*\\UIHost",
+    L"*\\Debugger",
+    L"*\\DefaultUserName",
+    L"*\\DefaultPassword",
+    L"*\\AltDefaultUserName",
+    L"*\\AltDefaultPassword",
+    L"*\\DisableCAD",
+    L"*\\LegalNoticeCaption",
+    L"*\\LegalNoticeText",
+    L"*\\Run",
+    L"*\\RunOnce",
+    L"*\\Image File Execution Options\\*"
+};
+
+const PCWSTR DangerousExtensions[] = {
+    L".exe", L".dll", L".sys", L".com", L".scr",
+    L".zip", L".7z", L".rar", L".tar", L".gz",
+    L".js", L".bat", L".cmd", L".ps1", L".vbs",
+    L".ppt", L".pptx", L".wps", L".txt", L".rtf",
+    L".pdf", L".xls", L".xlsx", L".doc", L".docx",
+    L".jpg", L".jpeg", L".png", L".webp", L".gif",
+    L".mp3", L".wav", L".aac", L".ogg", L".flac",
+    L".mp4", L".avi", L".mov", L".wmv", L".mkv",
+    L".aux", L".cur", L".mui", L".ttf", L".efi"
+};
+
+const PCWSTR NaturallyCompressedExtensions[] = {
+    L".zip", L".7z", L".rar", L".tar", L".gz",
+    L".jpg", L".jpeg", L".png", L".webp", L".gif",
+    L".mp3", L".wav", L".aac", L".ogg", L".flac",
+    L".mp4", L".avi", L".mov", L".wmv", L".mkv",
+    L".exe", L".dll", L".sys", L".mui",
+    L".docx", L".xlsx", L".pptx", L".odt", L".ods"
+};
+
+const PCWSTR ProtectedPaths[] = {
+    L"*\\System32\\drivers\\etc\\hosts",
+    L"*\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\*",
+    L"\\Device\\HarddiskVolume*\\Windows\\System32\\*.exe",
+    L"\\Device\\HarddiskVolume*\\Windows\\System32\\*.dll",
+    L"\\Device\\HarddiskVolume*\\Windows\\SysWOW64\\*.exe",
+    L"\\Device\\HarddiskVolume*\\Windows\\SysWOW64\\*.dll",
+    L"\\Device\\HarddiskVolume*\\bootmgr",
+    L"\\Device\\HarddiskVolume*\\EFI\\*",
+    L"*\\PYAS.exe",
+    L"*\\PYAS_Driver.sys"
+};
+
+const PCWSTR TrustedInstallerPatterns[] = {
+    L"*setup*",
+    L"*install*",
+    L"*update*",
+    L"*unins*",
+    L"*patch*",
+    L"*msiexec*",
+    L"*tiworker*",
+    L"*trustedinstaller*",
+    L"*dism*",
+    L"*pkgmgr*",
+    L"*wuauclt*",
+    L"*svchost*",
+    L"*taskhost*",
+    L"*googleupdate*",
+    L"*steam*",
+    L"*origin*",
+    L"*battle.net*",
+    L"*avast*",
+    L"*avg*"
+};
+
+BOOLEAN IsProcessTrusted(HANDLE ProcessId) {
+    if ((ULONG)(ULONG_PTR)ProcessId == GlobalData.PyasPid) return TRUE;
+    if (ProcessId == (HANDLE)4) return TRUE;
+    return FALSE;
+}
+
+BOOLEAN IsTargetProtected(HANDLE ProcessId) {
+    if ((ULONG)(ULONG_PTR)ProcessId == GlobalData.PyasPid) return TRUE;
+    return FALSE;
+}
+BOOLEAN IsInstallerProcess(HANDLE ProcessId) {
+    if (KeGetCurrentIrql() > APC_LEVEL) return FALSE;
+
+    NTSTATUS status;
+    BOOLEAN isTrusted = FALSE;
+    PEPROCESS Process = NULL;
+    PUNICODE_STRING imageFileName = NULL;
+
+    status = PsLookupProcessByProcessId(ProcessId, &Process);
+    if (!NT_SUCCESS(status)) return FALSE;
+
+    status = SeLocateProcessImageName(Process, &imageFileName);
+
+    if (NT_SUCCESS(status) && imageFileName) {
+        if (imageFileName->Buffer) {
+            for (int i = 0; i < sizeof(TrustedInstallerPatterns) / sizeof(TrustedInstallerPatterns[0]); i++) {
+                if (WildcardMatch(TrustedInstallerPatterns[i], imageFileName->Buffer, imageFileName->Length)) {
+                    isTrusted = TRUE;
+                    break;
+                }
+            }
+        }
+        ExFreePool(imageFileName);
+    }
+
+    ObDereferenceObject(Process);
+    return isTrusted;
+}
+
+BOOLEAN CheckRegistryRule(PCUNICODE_STRING KeyName) {
+    if (!KeyName || !KeyName->Buffer) return FALSE;
+    for (int i = 0; i < sizeof(RegistryBlockList) / sizeof(RegistryBlockList[0]); i++) {
+        if (WildcardMatch(RegistryBlockList[i], KeyName->Buffer, KeyName->Length)) return TRUE;
+    }
+    return FALSE;
+}
+
+BOOLEAN CheckFileExtensionRule(PCUNICODE_STRING FileName) {
+    if (!FileName || !FileName->Buffer) return FALSE;
+
+    for (int i = 0; i < sizeof(DangerousExtensions) / sizeof(DangerousExtensions[0]); i++) {
+        if (HasSuffix(FileName, DangerousExtensions[i])) {
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+BOOLEAN CheckProtectedPathRule(PCUNICODE_STRING FileName) {
+    if (!FileName || !FileName->Buffer) return FALSE;
+
+    for (int i = 0; i < sizeof(ProtectedPaths) / sizeof(ProtectedPaths[0]); i++) {
+        if (WildcardMatch(ProtectedPaths[i], FileName->Buffer, FileName->Length)) return TRUE;
+    }
+    return FALSE;
+}
+
+static BOOLEAN IsHighEntropy(PVOID Buffer, ULONG Length) {
+    if (!Buffer || Length < 256) return FALSE;
+
+    ULONG Histogram[256] = { 0 };
+    PUCHAR Ptr = (PUCHAR)Buffer;
+    ULONG ScanLen = (Length > 1024) ? 1024 : Length;
+
+    __try {
+        for (ULONG i = 0; i < ScanLen; i++) {
+            Histogram[Ptr[i]]++;
+        }
+    }
+    __except (EXCEPTION_EXECUTE_HANDLER) {
+        return FALSE;
+    }
+
+    ULONG MaxFreq = 0;
+    for (int i = 0; i < 256; i++) {
+        if (Histogram[i] > MaxFreq) MaxFreq = Histogram[i];
+    }
+
+    ULONG ExpectedAvg = ScanLen / 256;
+    if (MaxFreq < (ExpectedAvg + HIGH_ENTROPY_THRESHOLD)) {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+static BOOLEAN IsNaturallyCompressed(PCUNICODE_STRING FileName) {
+    if (!FileName || !FileName->Buffer) return FALSE;
+
+    for (int i = 0; i < sizeof(NaturallyCompressedExtensions) / sizeof(NaturallyCompressedExtensions[0]); i++) {
+        if (HasSuffix(FileName, NaturallyCompressedExtensions[i])) {
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+static BOOLEAN IsNoisyRansomPath(PCUNICODE_STRING FileName) {
+    if (!FileName || !FileName->Buffer) return FALSE;
+
+    if (WildcardMatch(L"*\\Windows\\Temp\\*", FileName->Buffer, FileName->Length) ||
+        WildcardMatch(L"*\\AppData\\Local\\*", FileName->Buffer, FileName->Length) ||
+        WildcardMatch(L"*\\Windows\\SystemTemp\\*", FileName->Buffer, FileName->Length) ||
+        WildcardMatch(L"*\\Program Files*\\*\\Temp\\*", FileName->Buffer, FileName->Length) ||
+        WildcardMatch(L"*$Recycle.Bin*", FileName->Buffer, FileName->Length)) {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+static BOOLEAN IsExplorerProcess(HANDLE ProcessId) {
+    if (KeGetCurrentIrql() > APC_LEVEL) return FALSE;
+
+    NTSTATUS status;
+    BOOLEAN isExplorer = FALSE;
+    PEPROCESS Process = NULL;
+    PUNICODE_STRING imageFileName = NULL;
+
+    status = PsLookupProcessByProcessId(ProcessId, &Process);
+    if (!NT_SUCCESS(status)) return FALSE;
+
+    status = SeLocateProcessImageName(Process, &imageFileName);
+
+    if (NT_SUCCESS(status) && imageFileName) {
+        if (imageFileName->Buffer) {
+            if (HasSuffix(imageFileName, L"explorer.exe")) {
+                isExplorer = TRUE;
+            }
+        }
+        ExFreePool(imageFileName);
+    }
+
+    ObDereferenceObject(Process);
+    return isExplorer;
+}
+
+BOOLEAN CheckRansomActivity(HANDLE ProcessId, PUNICODE_STRING FileName, PVOID Buffer, ULONG Length, BOOLEAN IsWrite) {
+    if (IsNoisyRansomPath(FileName)) return FALSE;
+
+    if (!IsWrite) {
+        if (IsExplorerProcess(ProcessId)) {
+            return FALSE;
+        }
+    }
+
+    LARGE_INTEGER Now = { 0 };
+    KeQuerySystemTime(&Now);
+    BOOLEAN Result = FALSE;
+    BOOLEAN SuspiciousWrite = FALSE;
+
+    if (IsWrite && Buffer && Length > 0) {
+        if (!IsNaturallyCompressed(FileName) && IsHighEntropy(Buffer, Length)) {
+            SuspiciousWrite = TRUE;
+        }
+    }
+
+    ExAcquireFastMutex(&GlobalData.TrackerMutex);
+
+    if (IsWrite && !SuspiciousWrite) {
+        ExReleaseFastMutex(&GlobalData.TrackerMutex);
+        return FALSE;
+    }
+
+    PRANSOM_TRACKER Tracker = NULL;
+    PRANSOM_TRACKER EmptySlot = NULL;
+
+    for (int i = 0; i < MAX_TRACKERS; i++) {
+        if (RansomTrackers[i].ProcessId == ProcessId) {
+            Tracker = &RansomTrackers[i];
+            break;
+        }
+        if (RansomTrackers[i].ProcessId == NULL && !EmptySlot) {
+            EmptySlot = &RansomTrackers[i];
+        }
+    }
+
+    if (!Tracker) {
+        if (EmptySlot) {
+            Tracker = EmptySlot;
+            Tracker->ProcessId = ProcessId;
+            Tracker->ActivityCount = 0;
+            Tracker->LastActivityTime = Now;
+        }
+        else {
+            ExReleaseFastMutex(&GlobalData.TrackerMutex);
+            return FALSE;
+        }
+    }
+
+    LARGE_INTEGER Diff = { 0 };
+    Diff.QuadPart = Now.QuadPart - Tracker->LastActivityTime.QuadPart;
+
+    if (Diff.QuadPart > (RANSOM_TIME_WINDOW_MS * 10000LL)) {
+        Tracker->ActivityCount = 0;
+        Tracker->LastActivityTime = Now;
+    }
+
+    ULONG Weight = 1;
+    if (IsWrite) {
+        Weight = SuspiciousWrite ? 2 : 1;
+    }
+
+    Tracker->ActivityCount += Weight;
+
+    if (Tracker->ActivityCount >= RANSOM_COUNT_THRESHOLD) {
+        Result = TRUE;
+    }
+
+    ExReleaseFastMutex(&GlobalData.TrackerMutex);
+    return Result;
+}
+
+NTSTATUS SendMessageToUser(ULONG Code, ULONG Pid, PWCHAR Path, USHORT PathSize) {
+    if (KeGetCurrentIrql() > APC_LEVEL) return STATUS_UNSUCCESSFUL;
+
+    PYAS_MESSAGE msg;
+    RtlZeroMemory(&msg, sizeof(msg));
+    msg.MessageCode = Code;
+    msg.ProcessId = Pid;
+
+    if (Path && PathSize > 0) {
+        size_t MaxSize = sizeof(msg.Path) - sizeof(WCHAR);
+        size_t BytesToCopy = PathSize;
+        if (BytesToCopy > MaxSize) {
+            BytesToCopy = MaxSize;
+        }
+
+        __try {
+            RtlCopyMemory(msg.Path, Path, BytesToCopy);
+        }
+        __except (EXCEPTION_EXECUTE_HANDLER) {
+            return STATUS_ACCESS_VIOLATION;
+        }
+        msg.Path[BytesToCopy / sizeof(WCHAR)] = L'\0';
+    }
+
+    if (!ExAcquireRundownProtection(&GlobalData.PortRundown)) {
+        return STATUS_PORT_DISCONNECTED;
+    }
+
+    NTSTATUS status = STATUS_SUCCESS;
+
+    if (GlobalData.ClientPort) {
+        LARGE_INTEGER timeout{};
+        timeout.QuadPart = -(5 * 10000);
+        PFLT_PORT Port = GlobalData.ClientPort;
+
+        status = FltSendMessage(GlobalData.FilterHandle, &Port, &msg, sizeof(msg), NULL, NULL, &timeout);
+    }
+    else {
+        status = STATUS_PORT_DISCONNECTED;
+    }
+
+    ExReleaseRundownProtection(&GlobalData.PortRundown);
+    return status;
+}

Plugins/Filter/ProtectRules.h

@@ -1,25 +0,0 @@
-#pragma once
-#include <ntifs.h>
-
-extern wchar_t* g_Whitelist[];
-extern wchar_t* g_WhitelistExcept[];
-
-extern wchar_t* g_AttachDisk[];
-extern wchar_t* g_BlockFile[];
-extern wchar_t* g_BlockRansom[];
-extern wchar_t* g_Blocksuffix[];
-
-extern wchar_t* g_BlockReg[];
-
-extern wchar_t* g_RemoteSuspectBins[];
-
-extern wchar_t* g_RemoteCmdIndicatorsHttp[];
-extern wchar_t* g_RemoteCmdIndicatorsGeneric[];
-extern wchar_t* g_RemoteCmdFromCmdExe[];
-extern wchar_t* g_RemoteCmdFromRundll32Exe[];
-extern wchar_t* g_RemoteCmdRegsvr32Need[];
-extern wchar_t* g_RemoteCmdFromMshtaExe[];
-
-extern wchar_t* g_ScreenCapModules[];
-extern wchar_t* g_ScreenUserSubdirs[];
-extern wchar_t* g_ScreenOtherProcNeedles[];

Plugins/Filter/ProtectScreen.c

@@ -1,67 +0,0 @@
-#include <ntifs.h>
-#include "DriverEntry.h"
-#include "ProtectMatch.h"
-
-static BOOLEAN g_ScreenImgCb = FALSE;
-
-static VOID ImageLoadNotify(PUNICODE_STRING FullImageName, HANDLE ProcessId, PIMAGE_INFO ImageInfo)
-{
-    UNREFERENCED_PARAMETER(ImageInfo);
-    if (g_Unloading)
-        return;
-    if (KeGetCurrentIrql() != PASSIVE_LEVEL)
-        return;
-    if (!ExAcquireRundownProtection(&g_Rundown))
-        return;
-    if (!FullImageName || !FullImageName->Buffer || FullImageName->Length == 0) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return;
-    }
-
-    UNICODE_STRING proc = { 0 };
-    WCHAR pbuf[512] = { 0 };
-    proc.Buffer = pbuf;
-    proc.MaximumLength = sizeof(pbuf);
-
-    if (!GetProcessImagePathByPid(ProcessId, &proc)) {
-        PEPROCESS eproc = NULL;
-        if (NT_SUCCESS(PsLookupProcessByProcessId(ProcessId, &eproc))) {
-            PCSTR n = PsGetProcessImageFileName(eproc);
-            SIZE_T l = n ? strlen(n) : 0;
-            for (SIZE_T i = 0; i < l && i < RTL_NUMBER_OF(pbuf) - 1; i++)
-                pbuf[i] = (WCHAR)n[i];
-            pbuf[l] = 0;
-            proc.Length = (USHORT)(l * sizeof(WCHAR));
-            ObDereferenceObject(eproc);
-        }
-    }
-    if (proc.Length == 0) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return;
-    }
-    if (IsWhitelist(&proc)) {
-        ExReleaseRundownProtection(&g_Rundown);
-        return;
-    }
-
-    BOOLEAN suspicious = MatchSuspiciousProcPath(&proc);
-    if (suspicious && MatchScreenCapModule(FullImageName))
-        LogAnsi3("SCREEN_BLOCK", (ULONG)(ULONG_PTR)ProcessId, &proc, FullImageName);
-
-    ExReleaseRundownProtection(&g_Rundown);
-}
-
-NTSTATUS InitScreenProtect(VOID)
-{
-    NTSTATUS s = PsSetLoadImageNotifyRoutine(ImageLoadNotify);
-    if (NT_SUCCESS(s)) g_ScreenImgCb = TRUE;
-    return s;
-}
-
-VOID UninitScreenProtect(VOID)
-{
-    if (g_ScreenImgCb) {
-        PsRemoveLoadImageNotifyRoutine(ImageLoadNotify);
-        g_ScreenImgCb = FALSE;
-    }
-}

README.md

@@ -1,6 +1,6 @@
 # PYAS
 
-Antivirus software written in Python and C that blocks threats through deep learning and behavioral monitoring!
+Antivirus software written in Python and C++ that blocks threats through deep learning and behavioral monitoring!
 
 <img width="2245" height="1477" alt="PYAS_UI" src="https://github.com/user-attachments/assets/87d40261-7655-49ad-a19c-1ffcca60584f" />
 
@@ -28,23 +28,22 @@ PYAS/
 ├── Engine/
 │   ├── Models/
 │   │   ├── convert.py               # Convert executable files or other files to images
-│   │   └── train.py                 # TensorFlow CNN model training complete code
+│   │   ├── train.py                 # TensorFlow CNN model training complete code
+│   │   └── ...                      # Other models folders and files
 │   │
 │   └── Rules/
 │       ├── rules.yar                # Yara virus signature rule matching
-│       └── rules.ips                # IP network address rule matching
+│       ├── rules.ips                # IP network address rule matching
+│       └── ...                      # Other rules folders and files
 │
 ├── Plugins/
 │   └── Filter/
-│       ├── DriverEntry.c            # Main driver entry and initialization logic
-│       ├── DriverEntry.h            # Global driver definitions, constants, and functions
-│       ├── DriverPipe.c             # Kernel to user pipe logging implementation
-│       ├── ProtectBoot.c            # Disk boot sector write protection
-│       ├── ProtectImage.c           # Image load monitoring and shellcode detection
-│       ├── ProtectInject.c          # Process thread handle access control to prevent injection
-│       ├── ProtectReg.c             # Registry modification protection
-│       ├── ProtectRules.c           # White, block list, and matching logic for files registry
-│       └── ProtectRules.h           # Protection rule declarations
+│       ├── DriverEntry.cpp          # Main driver entry and initialization logic
+│       ├── DriverCommon.h           # Global driver definitions, constants, and functions
+│       ├── ProtectBoot.cpp          # Disk boot sector write protection
+│       ├── ProtectRegistry.cpp      # Registry modification protection
+│       ├── ProtectRules.cpp         # White, block list, and matching logic for files registry
+│       └── ...                      # Other driver folders and files
 │
 ├── PYAS.py                          # Main application entry point and UI to engine interface
 ├── PYAS_Config.py                   # Configuration loading, saving, and global parameters