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87owo c14957afff Update and rename convert_full.py to convert.py 2026-01-04 22:34:35 +08:00
87owo 843a4998f1 Delete Engine/Model/convert.py 2026-01-04 20:45:08 +08:00
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87owo 8caacd1870 Update README.md 2026-01-01 21:38:30 +08:00
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87owo 9da0970d85 Delete ProtectRules.cpp 2026-01-01 18:31:01 +08:00
87owo d6f2ad32a7 Delete ProtectRegistry.cpp 2026-01-01 18:30:54 +08:00
87owo 8dbc87a331 Delete ProtectProcess.cpp 2026-01-01 18:30:45 +08:00
87owo 77eb1ce44e Delete ProtectFile.cpp 2026-01-01 18:30:37 +08:00
87owo e12f4ae61a Delete ProtectBoot.cpp 2026-01-01 18:30:29 +08:00
87owo c23a73625f Delete DriverEntry.cpp 2026-01-01 18:30:20 +08:00
87owo 3a66946686 Delete DriverCommon.h 2026-01-01 18:30:13 +08:00
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87owo 81af2e51fc Delete Plugins/Filter/ProtectScreen.c 2026-01-01 03:37:53 +08:00
87owo dff09064c8 Delete Plugins/Filter/ProtectRules.h 2026-01-01 03:37:45 +08:00
87owo ee0bb32cce Delete Plugins/Filter/ProtectRules.c 2026-01-01 03:37:35 +08:00
87owo 4a215c308b Delete Plugins/Filter/ProtectRegistry.c 2026-01-01 03:37:18 +08:00
87owo 79493a96ea Delete Plugins/Filter/ProtectRemote.c 2026-01-01 03:37:07 +08:00
87owo 3cca1c4671 Delete Plugins/Filter/ProtectProcess.c 2026-01-01 03:36:54 +08:00
87owo 72e9923d08 Delete Plugins/Filter/ProtectMatch.h 2026-01-01 03:36:43 +08:00
87owo 406e152891 Delete Plugins/Filter/ProtectMatch.c 2026-01-01 03:36:27 +08:00
87owo e9eb569d50 Delete Plugins/Filter/ProtectInject.c 2026-01-01 03:36:17 +08:00
87owo 640b389e44 Delete Plugins/Filter/ProtectImage.c 2026-01-01 03:36:07 +08:00
87owo 314e3349d6 Delete Plugins/Filter/ProtectFile.c 2026-01-01 03:35:56 +08:00
87owo 0ae4d72bc9 Delete Plugins/Filter/ProtectBoot.c 2026-01-01 03:35:45 +08:00
87owo 8920a5fb21 Delete Plugins/Filter/DriverPipe.c 2026-01-01 03:35:34 +08:00
87owo b338ff5dd9 Delete Plugins/Filter/DriverEntry.h 2026-01-01 03:35:25 +08:00
87owo 87e2fcb37c Delete Plugins/Filter/DriverEntry.c 2026-01-01 03:35:05 +08:00
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87owo 855472239a Delete Engine/Model/train_torch.py 2025-12-27 01:42:33 +08:00
87owo dc5d317623 Delete Engine/Model/train_tensorflow.py 2025-12-27 01:42:24 +08:00
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87owo 70ba3a629d Update README.md 2025-12-25 03:14:28 +08:00
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87owo 01e6d09f7c Update train.py 2025-11-26 17:56:08 +08:00
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87owo 98d21b3391 Update LICENSE.txt 2025-09-09 09:45:56 +08:00
87owo 35d9203b9c Update LICENSE.txt 2025-09-09 09:32:39 +08:00
87owo e6e384a7f7 Rename LICENSE.md to LICENSE.txt 2025-09-09 08:45:38 +08:00
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37 changed files with 2550 additions and 3144 deletions

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+39 -57
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@@ -1,73 +1,55 @@
from PIL import Image
import numpy, pefile, os
def file_to_images(file_data, output_dir, file_name, target_size=(224, 224)):#
wah = int(numpy.ceil(numpy.sqrt(len(file_data))))
file_data = numpy.frombuffer(file_data, dtype=numpy.uint8)
image_array = numpy.zeros((wah * wah,), dtype=numpy.uint8)
image_array[:len(file_data)] = file_data
image = Image.fromarray(image_array.reshape((wah, wah)), 'L')
image = image.resize(target_size, Image.Resampling.NEAREST)
image.save(os.path.join(output_dir, f"{file_name}.png"))
####################################################################################################
def check_file_type(file_path):
def preprocess_image(file_data, size, channels=1):
width, height = size
wah = int(numpy.ceil(numpy.sqrt(len(file_data) / channels)))
arr = numpy.frombuffer(file_data, dtype=numpy.uint8)
img = numpy.zeros(wah*wah*channels, dtype=numpy.uint8)
img[:len(file_data)] = arr
image = Image.fromarray(img.reshape((wah, wah)), 'L')
return image.resize((width, height), Image.Resampling.NEAREST)
####################################################################################################
def get_type(file_path):
suffix = {".com", ".dll", ".drv", ".exe", ".ocx", ".scr", ".sys", ".mui", ".cpl"}
try:
shell_section = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
"cry", "tvm", "dec", "enc", "vmp", "upx", "aes", "lzma", "press",
"pack", "enigma", "protect", "secur"]
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()
except:
pass
return file_content
unknown_section = ["asmstub", "base", "bss", "clr_uef", "cursors",
"engine", "fio", "fothk", "h~;", "icapsec", "malloc_h", "miniex",
"mssmixer", "ndr64", "nsys_wr", "obr", "wow", "wow64svc", "wpp_sf",
"pad", "pgae", "poolmi", "proxy", "qihoo", "res", "retpol", "uedbg",
"rwexec", "rygs", "s:@", "sanontcp", "segm", "test", "tracesup",
"transit", "trs_age", "wisevec"]
####################################################################################################
unimportant_section = ["viahwaes", "orpc", "nep", "ace", "extjmp",
"no_bbt", "data", "page", "hexpthk"]
shells = shell_section + unimportant_section + unknown_section
ftype = str(f".{file_path.split('.')[-1]}").lower()
if ftype in [".bat", ".cmd", ".ps1", ".vbs", ".wsf", ".js", ".html"]:
with open(file_path, 'rb') as f:
return [f.read()]
match_data = []
if ftype in [".com", ".exe", ".dll", ".sys", ".scr"]:
with pefile.PE(file_path, fast_load=True) as pe:
for section in pe.sections:
section_name = section.Name.rstrip(b'\x00').decode('latin1')
#if (section.Characteristics & 0x00000020 and not
#any(shell in section_name.lower() for shell in shells)):
if section.Characteristics & 0x00000020:
match_data.append(section.get_data())
return match_data
return False
except Exception as e:
print(e)
return False
def batch_file_to_images(input_dir, output_dir):
def file_to_images(input_dir, output_dir):
for root, dirs, files in os.walk(input_dir):
for file in files:
try:
file_path = os.path.join(root, file)
file_data = check_file_type(file_path)
if file_data:
for i, data in enumerate(file_data, 1):
print(i, 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)
file_to_images(data, output_path_dir, f"{i}_{file}")
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(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)
pass
####################################################################################################
input_directory = input('Enter the folder path: ')
output_directory = "./Image_File"
batch_file_to_images(input_directory, output_directory)
output_directory = "./Image_Output"
file_to_images(input_directory, output_directory)
input('Conversion Complete')
+6 -1
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@@ -1,5 +1,7 @@
import os, hashlib
####################################################################################################
def calc_sha256(path):
with open(path, "rb") as f:
return hashlib.sha256(f.read()).digest()
@@ -25,5 +27,8 @@ def dedup_realtime(root):
seen.add(h)
print(f"deleted {deleted}")
####################################################################################################
if __name__ == "__main__":
dedup_realtime(r".\Image_File")
dedup_realtime(input("Input file path: "))
input('Deduplicate Complete')
+110 -59
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@@ -2,15 +2,57 @@ import tensorflow as tf
import os, tf2onnx, numpy, random
from PIL import Image
from tensorflow.keras import *
from collections import Counter
####################################################################################################
Image.MAX_IMAGE_PIXELS = None
tf.keras.mixed_precision.set_global_policy('mixed_float16')
####################################################################################################
def load_dataset(data_dir, image_size=(224, 224), val_split=0.00001, batch_size=256, color_mode="grayscale"):
channels = 1 if color_mode == "grayscale" else 3
file_paths, labels, class_indices = get_file_list(data_dir)
combined = list(zip(file_paths, labels))
random.shuffle(combined)
file_paths[:], labels[:] = zip(*combined)
num_val = int(val_split * len(file_paths))
train_files = file_paths[num_val:]
train_labels = labels[num_val:]
val_files = file_paths[:num_val]
val_labels = labels[:num_val]
num_classes = len(class_indices)
train_ds = tf.data.Dataset.from_tensor_slices((train_files, train_labels))
train_ds = train_ds.map(lambda f, l: parse_fn(f, l, image_size, channels, num_classes), num_parallel_calls=tf.data.AUTOTUNE)
train_ds = train_ds.batch(batch_size).prefetch(tf.data.AUTOTUNE)
val_ds = tf.data.Dataset.from_tensor_slices((val_files, val_labels))
val_ds = val_ds.map(lambda f, l: parse_fn(f, l, image_size, channels, num_classes), num_parallel_calls=tf.data.AUTOTUNE)
val_ds = val_ds.batch(batch_size).prefetch(tf.data.AUTOTUNE)
train_ds.class_indices = class_indices
return train_ds, val_ds
####################################################################################################
def parse_fn(filename, label, image_size, channels, num_classes):
img = tf.io.read_file(filename)
img = tf.image.decode_image(img, channels=channels, expand_animations=False)
img = tf.cond(tf.reduce_all(tf.equal(tf.shape(img)[:2], image_size)), lambda: tf.cast(img, tf.float32), lambda: tf.image.resize(img, image_size))
img = tf.cast(img, tf.float32) / 255.0
label = tf.one_hot(label, depth=num_classes)
return img, label
def get_file_list(directory):
file_paths, labels, class_indices = [], [], {}
for i, cls in enumerate(sorted([d for d in os.listdir(directory) if os.path.isdir(os.path.join(directory, d))])):
class_indices[cls] = i
cls_dir = os.path.join(directory, cls)
for root, _, files in os.walk(cls_dir):
for file in files:
if file.lower().endswith(('.jpg', '.jpeg', '.png', '.bmp', '.gif')):
@@ -18,95 +60,104 @@ def get_file_list(directory):
labels.append(i)
return file_paths, labels, class_indices
def load_dataset(train_dir, val_dir, val_split=0.01, batch_size=128, color_mode="grayscale"):
channels = 1 if color_mode == "grayscale" else 3
if train_dir == val_dir:
file_paths, labels, class_indices = get_file_list(train_dir)
combined = list(zip(file_paths, labels))
random.shuffle(combined)
file_paths[:], labels[:] = zip(*combined)
num_val = int(val_split * len(file_paths))
train_files = file_paths[num_val:]
train_labels = labels[num_val:]
val_files = file_paths[:num_val]
val_labels = labels[:num_val]
else:
train_files, train_labels, class_indices = get_file_list(train_dir)
val_files, val_labels, _ = get_file_list(val_dir)
num_classes = len(class_indices)
####################################################################################################
def parse_fn(filename, label):
img = tf.io.read_file(filename)
img = tf.image.decode_image(img, channels=channels, expand_animations=False)
img = tf.cast(img, tf.float32) / 255.0
label = tf.one_hot(label, depth=num_classes)
return img, label
def multi_conv(x, strides):
convs = []
for k in [(1, 7), (1, 1), (3, 3), (5, 5)]:
c = layers.DepthwiseConv2D(kernel_size=k, strides=strides, padding='same', activation='gelu')(x)
convs.append(c)
train_ds = tf.data.Dataset.from_tensor_slices((train_files, train_labels))
train_ds = train_ds.map(parse_fn, num_parallel_calls=tf.data.AUTOTUNE)
train_ds = train_ds.batch(batch_size).prefetch(tf.data.AUTOTUNE)
val_ds = tf.data.Dataset.from_tensor_slices((val_files, val_labels))
val_ds = val_ds.map(parse_fn, num_parallel_calls=tf.data.AUTOTUNE)
val_ds = val_ds.batch(batch_size).prefetch(tf.data.AUTOTUNE)
train_ds.class_indices = class_indices
return train_ds, val_ds
x = layers.Concatenate()(convs)
x = layers.BatchNormalization()(x)
return layers.Activation('gelu')(x)
def gated_conv(x, strides):
c = layers.DepthwiseConv2D(3, strides=strides, padding='same', activation='gelu')(x)
g = layers.DepthwiseConv2D(3, strides=strides, padding='same', activation='sigmoid')(x)
return layers.Multiply()([c, g])
def multi_conv(x, strides):
convs = [layers.DepthwiseConv2D(kernel_size=k, strides=strides, padding='same')(x) for k in [1, 3, 5, 7]]
x = layers.Concatenate()(convs)
x = layers.BatchNormalization()(x)
return layers.Activation('gelu')(x)
def se_block(x, reduction):
def coordinate_attention(x, reduction):
input_shape = tf.shape(x)
h, w = input_shape[1], input_shape[2]
filters = x.shape[-1]
s = layers.Conv2D(filters // reduction, 1, padding='same', activation='gelu')(x)
s = layers.BatchNormalization()(s)
s = layers.Conv2D(filters, 1, padding='same', activation='sigmoid')(s)
return layers.multiply([x, s])
mip = max(8, filters // reduction)
x_h = layers.Lambda(lambda t: tf.reduce_mean(t, axis=2, keepdims=True))(x)
x_w = layers.Lambda(lambda t: tf.reduce_mean(t, axis=1, keepdims=True))(x)
x_w_t = layers.Permute((2, 1, 3))(x_w)
x_cat = layers.Concatenate(axis=1)([x_h, x_w_t])
x_cat = layers.Conv2D(mip, 1, padding='valid', use_bias=False)(x_cat)
x_cat = layers.BatchNormalization()(x_cat)
x_cat = layers.Activation('gelu')(x_cat)
x_cat_h, x_cat_w = layers.Lambda(lambda t: tf.split(t[0], [t[1], t[2]], axis=1))([x_cat, h, w])
x_h_sigmoid = layers.Conv2D(filters, 1, padding='valid', activation='sigmoid')(x_cat_h)
x_cat_w = layers.Permute((2, 1, 3))(x_cat_w)
x_w_sigmoid = layers.Conv2D(filters, 1, padding='valid', activation='sigmoid')(x_cat_w)
return layers.Multiply()([x, x_h_sigmoid, x_w_sigmoid])
def build_model(input_shape, num_classes):
i = layers.Input(shape=input_shape)
x = multi_conv(i, strides=1)
x = multi_conv(x, strides=2)
x = gated_conv(x, strides=2)
x = multi_conv(x, strides=2)
x = multi_conv(x, strides=2)
x = multi_conv(x, strides=2)
x = se_block(x, reduction=2)
x = layers.GlobalAveragePooling2D()(x)
x = multi_conv(x, strides=2)
x = coordinate_attention(x, reduction=4)
x = layers.GlobalMaxPooling2D()(x)
x = layers.Dense(x.shape[-1] // 2, activation='gelu', dtype='float32')(x)
o = layers.Dense(num_classes, activation='softmax', dtype='float32')(x)
return models.Model(i, o)
def lr_scheduler(epoch, lr):
return 1e-3 * (0.7 ** epoch)
####################################################################################################
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)
def lr_scheduler(epoch):
return calculate_lr_cosine_sq(epoch)
def categorical_focal_loss(gamma=2.0, alpha=0.25):
def focal_loss(y_true, y_pred):
y_pred = tf.clip_by_value(y_pred, tf.keras.backend.epsilon(), 1.0 - tf.keras.backend.epsilon())
cross_entropy = -y_true * tf.math.log(y_pred)
loss = alpha * tf.math.pow(1.0 - y_pred, gamma) * cross_entropy
return tf.reduce_sum(loss, axis=-1)
return focal_loss
class CustomModelCheckpoint(callbacks.Callback):
def on_epoch_end(self, epoch, logs=False):
models.save_model(self.model, f"PYAS_Model_Epoch_{epoch + 1}.h5")
spec = (tf.TensorSpec((None,) + train_ds.image_shape, tf.float32),)
model_proto, _ = tf2onnx.convert.from_keras(self.model, input_signature=spec, opset=18)
model_proto, _ = tf2onnx.convert.from_keras(self.model, input_signature=spec, opset=17)
with open(f"PYAS_Model_Epoch_{epoch + 1}.onnx", "wb") as f:
f.write(model_proto.SerializeToString())
train_ds, val_ds = load_dataset(r'./Image_File', r'./Image_File')
####################################################################################################
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
strategy = tf.distribute.MirroredStrategy(cross_device_ops=tf.distribute.HierarchicalCopyAllReduce())
with strategy.scope():
try:
model = models.load_model('PYAS_Model_Epoch_0.h5')
print("Load model from disk")
except:
print("Creating a new model")
model = build_model(train_ds.image_shape, len(train_ds.class_indices))
print(f"Total parameters: {model.count_params()}")
model.compile(optimizer='adam', loss='categorical_crossentropy', metrics=['accuracy'])
try:
model = models.load_model('PYAS_Model_Epoch_0.h5')
print("Load model from disk")
except:
print("Creating a new model")
model = build_model(train_ds.image_shape, len(train_ds.class_indices))
print(f"Total parameters: {model.count_params()}")
model.compile(optimizer='adam', loss=categorical_focal_loss(gamma=2.0, alpha=0.25),
metrics=['accuracy', metrics.Precision(name='precision'), metrics.Recall(name='recall'),
metrics.FalsePositives(name='fp'), metrics.TrueNegatives(name='tn')])
model.fit(train_ds, epochs=30, callbacks=[CustomModelCheckpoint(), callbacks.LearningRateScheduler(lr_scheduler)], validation_data=val_ds)
input("Training complete.")
input('Training Complete')
+25 -21
View File
@@ -1,27 +1,31 @@
PYAS Security Software Development License Agreement
Last updated: 2025-08-15
87owo Publicly Available Source Code License Agreement
Last updated: 2025-12-19
1. License & Ownership
– A single device key may be required to activate the software or source code.
– Non exclusive, non transferable, and for personal, internal use only.
– 87owo reserves all rights. Intellectual property rights are not transferred.
1. License and Ownership
- This software and its source code are source available for public view.
- Access or execution of certain features may require an activation key.
- 87owo reserves all legal rights, no intellectual property is transferred.
- All project archives, source code, and binaries remain fully proprietary.
2. Use & Prohibitions
– Private redistribution, sublicensing, or rental is prohibited.
– Private reverse engineering or removal of notices is prohibited.
– Any of the above requires prior authorization from the original author.
– Only personal internal use or modification of the source code is permitted.
– Use of the software or source code for any illegal purpose is prohibited.
2. Use and Prohibitions
- You may view, download, and modify the code for local and personal use.
- Redistribution of any original or modified code requires prior consent.
- Commercial hosting or SaaS deployment is prohibited without permission.
- Reverse engineering, license removal, or illegal use is strictly barred.
3. License Components
– All project script archives and executable files are proprietary.
3. Data and Privacy
- This project may collect operational data for optimization and analysis.
- All collected data is strictly anonymized to ensure the user's privacy.
- Transmission of information is encrypted to prevent unauthorized access.
4. Updates & Terms
– Updates to new versions may include patches, enhancements, or modifications.
– Continued use constitutes your acceptance of these features or terms.
4. Updates and Terms
- New releases may include critical patches, enhancements, or UI changes.
- Continued use of these services constitutes acceptance of updated terms.
- The author reserves the right to modify these license terms at any time.
5. Warranty & Liability
– This software is provided "as is," without warranty of any kind.
– In no event shall there be any liability for consequential damages.
5. Warranty and Liability
- All services and assets are provided "as is" without any form of warranty.
- 87owo is not liable for any direct or indirect damages from software use.
- Users assume all risks regarding performance, data, and system integrity.
© 2020–2025 87owo (PYAS Security). All rights reserved.
© 2020-2026 87owo (PYAS Security). All rights reserved.
+484 -179
View File
File diff suppressed because it is too large. Load diff
+8 -8
View File
@@ -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 ",
@@ -117,13 +117,13 @@ translate_dict = {
"_white": "_black"
},
"black_switch": {
"255, 255, 255": "55, 55, 55",
"245, 245, 245": "75, 75, 75",
"235, 235, 235": "65, 65, 65",
"240, 240, 240": "80, 80, 80",
"250, 250, 250": "90, 90, 90",
"220, 255, 220": "80, 80, 80",
"210, 255, 210": "90, 90, 90",
"255, 255, 255": "20, 20, 20",
"245, 245, 245": "40, 40, 40",
"235, 235, 235": "30, 30, 30",
"240, 240, 240": "70, 70, 70",
"250, 250, 250": "80, 80, 80",
"220, 255, 220": "70, 70, 70",
"210, 255, 210": "80, 80, 80",
"0, 0, 0": "255, 255, 255",
"_black": "_white"
}
+231 -119
View File
@@ -1,6 +1,8 @@
import os, yara, numpy, 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
####################################################################################################
@@ -44,61 +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, 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
@@ -107,104 +133,190 @@ class rule_scanner:
class model_scanner:
def __init__(self):
self.models = {}
self.suffix = {
".com", ".dll", ".drv", ".exe", ".ocx", ".scr", ".sys",
".bat", ".cmd", ".js", ".php", ".ps1", ".vbs", ".wsf"}
self.labels = [
"Pefile/White", "Script/White", "Pefile/General", "Script/General"]
self.detect = {
"Pefile/General", "Script/General"}
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.models[file] = onnxruntime.InferenceSession(file)
session = onnxruntime.InferenceSession(file)
self.models.append(session)
except Exception:
return False
def model_scan(self, file_path):
try:
model = next(iter(self.models.values()))
shape = model.get_inputs()[0].shape
channels = shape[-1] if shape[-1] in (1, 3) else (shape[1] if shape[1] in (1, 3) else 1)
def model_scan(self, file_path, full_output=False):
if not self.models:
return (False, False) if not full_output else ([], str(file_path), None)
file_sections = self.get_type(file_path)
if not file_sections:
return False, False
data = self.get_data(file_path)
if not data:
return (False, False) if not full_output else ([], str(file_path), None)
batch_images = [self.preprocess_image(data, self.resize, channels) for data in file_sections.values()]
arr = numpy.stack([numpy.asarray(img).astype('float32') / 255.0 for img in batch_images])
if arr.ndim == 3:
arr = arr[..., None]
if shape[-1] in (1, 3):
model_input = arr
elif shape[1] in (1, 3):
model_input = arr.transpose(0, 3, 1, 2)
else:
return False, False
image = self.preprocess_image(data, self.resize)
if not image:
return (False, False) if not full_output else ([], str(file_path), None)
input_name = model.get_inputs()[0].name
predictions = model.run(None, {input_name: model_input})[0]
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)
label_scores = {label: [] for label in self.labels}
for pre_answers in predictions:
for k, score in enumerate(pre_answers):
label_scores[self.labels[k]].append(score)
label_percentage = {label: (sum(scores)/len(scores))*100 for label, scores in label_scores.items() if scores}
if not label_percentage:
return False, False
best_label, best_conf = max(label_percentage.items(), key=lambda x: x[1])
if best_label in self.detect:
return best_label, int(best_conf)
return False, False
except Exception:
return False, False
results = []
best_malicious = None
def preprocess_image(self, file_data, size, channels=1):
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)
if full_output:
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))
if full_output:
results.sort(key=lambda x: (x[1] not in self.detect_set, -x[2]))
malicious_count = sum(1 for _, lbl, _, _ in results if lbl in self.detect_set)
total = len(results)
return results, str(file_path), f"{malicious_count}/{total}"
return best_malicious if best_malicious else (False, False)
def pil_to_base64(self, img):
buf = BytesIO()
img.save(buf, format='PNG')
return base64.b64encode(buf.getvalue()).decode()
def preprocess_image(self, data, size, channels=1):
width, height = size
wah = int(numpy.ceil(numpy.sqrt(len(file_data) / channels)))
arr = numpy.frombuffer(file_data, dtype=numpy.uint8)
img = numpy.zeros(wah*wah*channels, dtype=numpy.uint8)
img[:len(file_data)] = arr
if channels == 1:
image = Image.fromarray(img.reshape((wah, wah)), 'L')
else:
image = Image.fromarray(img.reshape((wah, wah, channels)), 'RGB')
wah = int(numpy.ceil(numpy.sqrt(len(data) / channels)))
arr = numpy.frombuffer(data, dtype=numpy.uint8)
imgbuf = numpy.zeros(wah * wah * channels, dtype=numpy.uint8)
imgbuf[:len(arr)] = arr
image = Image.fromarray(imgbuf.reshape((wah, wah)), 'L')
return image.resize((width, height), Image.Resampling.NEAREST)
def is_text_file(self, 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(self, file_path):
match_data = {}
if not os.path.splitext(file_path)[-1].lower() in self.suffix:
return match_data
def get_data(self, file_path):
try:
with pefile.PE(file_path, fast_load=True) as pe:
sec = pe.OPTIONAL_HEADER.DATA_DIRECTORY[pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_SECURITY']]
if bool(sec.VirtualAddress and sec.Size):
return {}
for section in pe.sections:
name = section.Name.rstrip(b'\x00').decode('latin1').lower()
if section.Characteristics & 0x00000020:
match_data[name] = section.get_data()
except pefile.PEFormatError:
with open(file_path, 'rb') as f:
file_content = f.read()
if self.is_text_file(file_content):
match_data[os.path.splitext(file_path)[-1].lower()] = file_content
return match_data
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
+33 -30
View File
@@ -1437,8 +1437,8 @@ class Ui_main_window(object):
self.info_text.setHtml(QCoreApplication.translate("main_window", u"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:'MS Shell Dlg 2'; font-size:10pt; font-weight:400; font-style:normal;\">\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p></body></html>", None))
"</style></head><body style=\" font-family:'PMingLiU'; font-size:10pt; font-weight:400; font-style:normal;\">\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'MS Shell Dlg 2';\"><br /></p></body></html>", None))
self.sensitive_title.setText(QCoreApplication.translate("main_window", u"\u589e\u5f37\u6a21\u5f0f", None))
self.sensitive_text.setText(QCoreApplication.translate("main_window", u"\u6b64\u9078\u9805\u53ef\u4ee5\u589e\u5f37\u6383\u63cf\u5f15\u64ce", None))
self.sensitive_switch.setText(QCoreApplication.translate("main_window", u"\u95dc\u9589", None))
@@ -1477,39 +1477,42 @@ class Ui_main_window(object):
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:'Microsoft YaHei'; font-size:9pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">PYAS Security Software Development License Agreement</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">Last updated: 2025-08-15</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">87owo Publicly Available Source Code License Agreement</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">Last updated: 2025-12-19</p>\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">1. License &amp; Ownership</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">1. License and Ownership</p>\n"
"<p style=\" margin-top:0px; ma"
"rgin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 A single device key may be required to activate the software or source code.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 Non exclusive, non transferable, and for personal, internal use only.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 87owo reserves all rights. Intellectual property rights are not transferred.</p>\n"
"rgin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - This software and its source code are source available for public view.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - Access or execution of certain features may require an activation key.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - 87owo reserves all legal rights, no intellectual property is transferred.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - All project archives, source code, and binaries remain fully proprietary.</p>\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">2. Use &amp; Prohibitions</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent"
":0; text-indent:0px;\"> \u2013 Private redistribution, sublicensing, or rental is prohibited.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 Private reverse engineering or removal of notices is prohibited.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 Any of the above requires prior authorization from the original author.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 Only personal internal use or modification of the source code is permitted.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 Use of the software or source code for any illegal purpose is prohibited.</p>\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin"
"-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">3. License Components</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 All project script archives and executable files are proprietary.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; mar"
"gin-right:0px; -qt-block-indent:0; text-indent:0px;\">2. Use and Prohibitions</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - You may view, download, and modify the code for local and personal use.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - Redistribution of any original or modified code requires prior consent.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - Commercial hosting or SaaS deployment is prohibited without permission.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - Reverse engineering, license removal, or illegal use is strictly barred.</p>\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-blo"
"ck-indent:0; text-indent:0px;\"><br /></p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">3. Data and Privacy</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - This project may collect operational data for optimization and analysis.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - All collected data is strictly anonymized to ensure the user's privacy.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - Transmission of information is encrypted to prevent unauthorized access.</p>\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">4. Updates &amp; Terms</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 Updates to new versions may include patches, enhancements, or modifications.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-lef"
"t:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 Continued use constitutes your acceptance of these features or terms.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; m"
"argin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">4. Updates and Terms</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - New releases may include critical patches, enhancements, or UI changes.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - Continued use of these services constitutes acceptance of updated terms.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - The author reserves the right to modify these license terms at any time.</p>\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">5. Warranty &amp; Liability</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 This software is provided &quot;as is,&quot; without warranty of any kind.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> \u2013 In no event shall there be any liability for consequential damages.</p>\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-in"
"dent:0px;\"><br /></p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">\u00a9 2020\u20132025 87owo (PYAS Security). All rights reserved.</p>\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p></body></html>", None))
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">5. Warranty and Liabi"
"lity</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - All services and assets are provided &quot;as is&quot; without any form of warranty.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - 87owo is not liable for any direct or indirect damages from software use.</p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"> - Users assume all risks regarding performance, data, and system integrity.</p>\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">\u00a9 2020-2026 87owo (PYAS Security). All rights reserved.</p></body></html>", None))
self.process_title.setText(QCoreApplication.translate("main_window", u"\u9032\u7a0b\u9632\u8b77", None))
self.process_text.setText(QCoreApplication.translate("main_window", u"\u6b64\u9078\u9805\u53ef\u4ee5\u6514\u622a\u9032\u7a0b\u75c5\u6bd2", None))
self.process_switch.setText(QCoreApplication.translate("main_window", u"\u95dc\u9589", None))
+1 -1
View File
@@ -2,7 +2,7 @@ import pyinstaller_versionfile
pyinstaller_versionfile.create_versionfile(
output_file="versionfile.txt",
version='3.3.5',
version='3.3.8',
company_name="PYAS Security",
file_description="Python Antivirus Software",
internal_name="PYAS",
+142
View File
@@ -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);
}
-310
View File
@@ -1,310 +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;
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 FileProtectDispatch(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;
}
static NTSTATUS AttachFsFilters(PDRIVER_OBJECT DriverObject)
{
UNICODE_STRING symDev = RTL_CONSTANT_STRING(L"IoDeviceObjectType");
POBJECT_TYPE* pDevType = (POBJECT_TYPE*)MmGetSystemRoutineAddress(&symDev);
if (!pDevType || !*pDevType)
return STATUS_NOT_SUPPORTED;
NTSTATUS status = STATUS_SUCCESS;
for (ULONG i = 0; g_AttachDisk[i] && g_MbrFilterCount < MAX_MBR_TARGETS; ++i) {
UNICODE_STRING name;
RtlInitUnicodeString(&name, g_AttachDisk[i]);
PDEVICE_OBJECT fsCtl = NULL;
status = ObReferenceObjectByName(&name, OBJ_CASE_INSENSITIVE, NULL, 0, *pDevType, KernelMode, NULL, (PVOID*)&fsCtl);
if (!NT_SUCCESS(status) || !fsCtl)
continue;
PDRIVER_OBJECT fsDrv = fsCtl->DriverObject;
if (fsDrv) {
ULONG need = 0;
status = IoEnumerateDeviceObjectList(fsDrv, NULL, 0, &need);
if (status == STATUS_BUFFER_TOO_SMALL || status == STATUS_SUCCESS) {
PDEVICE_OBJECT* list = (PDEVICE_OBJECT*)ExAllocatePool2(POOL_FLAG_NON_PAGED, need * sizeof(PDEVICE_OBJECT), 'fsTA');
if (list) {
status = IoEnumerateDeviceObjectList(fsDrv, list, need * sizeof(PDEVICE_OBJECT), &need);
if (NT_SUCCESS(status)) {
for (ULONG j = 0; j < need && g_MbrFilterCount < MAX_MBR_TARGETS; ++j) {
PDEVICE_OBJECT lower = list[j], filter, attached = NULL;
NTSTATUS s2 = IoCreateDevice(DriverObject, 0, NULL, lower->DeviceType, lower->Characteristics, FALSE, &filter);
if (!NT_SUCCESS(s2))
continue;
filter->Flags |= (lower->Flags & (DO_BUFFERED_IO | DO_DIRECT_IO | DO_POWER_PAGABLE));
s2 = IoAttachDeviceToDeviceStackSafe(filter, lower, &attached);
if (!NT_SUCCESS(s2) || !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;
}
}
ExFreePool2(list, 'fsTA', NULL, 0);
}
}
}
ObDereferenceObject(fsCtl);
}
return STATUS_SUCCESS;
}
NTSTATUS DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
{
UNREFERENCED_PARAMETER(RegistryPath);
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();
{
NTSTATUS ps = InitProcessProtect();
if (!NT_SUCCESS(ps)) {
CHAR b[64] = { 0 };
RtlStringCchPrintfA(b, RTL_NUMBER_OF(b), "PROC_INIT | 0x%08X", ps);
SendPipeLog(b, strlen(b));
}
else {
static CHAR ok[] = "PROC_INIT | 0x00000000";
SendPipeLog(ok, sizeof(ok) - 1);
}
}
AttachFsFilters(DriverObject);
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;
}
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;
}
}
+141
View File
@@ -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);
}
-178
View File
@@ -1,178 +0,0 @@
#pragma once
#include <ntifs.h>
#include <ntstrsafe.h>
#include <ntdddisk.h>
#include <ntddscsi.h>
#define PIPE_NAME L"\\??\\pipe\\PYAS_Output_Pipe"
#define MAX_MBR_TARGETS 256
#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
extern POBJECT_TYPE* PsJobType;
extern volatile LONG g_LogWorkCount;
extern BOOLEAN g_Unloading;
extern KEVENT g_LogDrainEvent;
extern PDEVICE_OBJECT g_MbrFilterTargets[MAX_MBR_TARGETS];
extern ULONG g_MbrFilterCount;
extern KSPIN_LOCK g_ProtectLock;
extern LARGE_INTEGER g_CmRegHandle;
extern POBJECT_TYPE* IoDriverObjectType;
extern POBJECT_TYPE* IoFileObjectType;
extern FAST_MUTEX HookMutex;
extern PDRIVER_OBJECT DiskDrvObj;
extern PCSTR PsGetProcessImageFileName(PEPROCESS Process);
extern EX_RUNDOWN_REF g_Rundown;
extern PDEVICE_OBJECT g_GuardDevice;
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);
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 FileProtectDispatch(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);
BOOLEAN GetProcessImagePathByPid(HANDLE pid, PUNICODE_STRING ProcessImagePath);
-62
View File
@@ -1,62 +0,0 @@
#include <ntifs.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);
}
+40 -15
View File
@@ -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"
+35
View File
@@ -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
+128
View File
@@ -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>
@@ -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>
+34
View File
@@ -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;
}
-323
View File
@@ -1,323 +0,0 @@
#include <ntifs.h>
#include "DriverEntry.h"
#include "ProtectMatch.h"
static BOOLEAN GetFilePathFromFileObject(PFILE_OBJECT fo, PUNICODE_STRING out)
{
if (!fo || !out || !out->Buffer || out->MaximumLength == 0)
return FALSE;
out->Length = 0;
if (fo->DeviceObject && fo->FileName.Buffer && fo->FileName.Length) {
ULONG need = 0;
NTSTATUS s = ObQueryNameString(fo->DeviceObject, NULL, 0, &need);
if (s == STATUS_INFO_LENGTH_MISMATCH && need > 0) {
POBJECT_NAME_INFORMATION oni = (POBJECT_NAME_INFORMATION)ExAllocatePool2(POOL_FLAG_NON_PAGED, need, 'nOmD');
if (oni) {
if (NT_SUCCESS(ObQueryNameString(fo->DeviceObject, oni, need, &need)) && oni->Name.Buffer && oni->Name.Length) {
ULONG total = oni->Name.Length + fo->FileName.Length;
if (total + sizeof(WCHAR) <= out->MaximumLength) {
RtlCopyMemory(out->Buffer, oni->Name.Buffer, oni->Name.Length);
RtlCopyMemory((PUCHAR)out->Buffer + oni->Name.Length, fo->FileName.Buffer, fo->FileName.Length);
out->Length = (USHORT)total;
out->Buffer[total / sizeof(WCHAR)] = 0;
ExFreePool2(oni, 'nOmD', NULL, 0);
return TRUE;
}
}
ExFreePool2(oni, 'nOmD', NULL, 0);
}
}
}
HANDLE hFile = NULL;
OBJECT_ATTRIBUTES oa = { 0 };
IO_STATUS_BLOCK iosb;
InitializeObjectAttributes(&oa, NULL, OBJ_KERNEL_HANDLE, NULL, NULL);
if (!NT_SUCCESS(ObOpenObjectByPointer(fo, OBJ_KERNEL_HANDLE, NULL, FILE_READ_ATTRIBUTES, *IoFileObjectType, KernelMode, &hFile)))
return FALSE;
ULONG buflen = sizeof(FILE_NAME_INFORMATION) + 2048 * sizeof(WCHAR);
PFILE_NAME_INFORMATION pfi = (PFILE_NAME_INFORMATION)ExAllocatePool2(POOL_FLAG_NON_PAGED, buflen, 'nIIF');
if (!pfi) {
ZwClose(hFile);
return FALSE;
}
RtlZeroMemory(pfi, buflen);
NTSTATUS st = ZwQueryInformationFile(hFile, &iosb, pfi, buflen, FileNormalizedNameInformation);
if (NT_SUCCESS(st) && pfi->FileNameLength > 0 && pfi->FileNameLength + sizeof(WCHAR) <= out->MaximumLength) {
RtlCopyMemory(out->Buffer, pfi->FileName, pfi->FileNameLength);
out->Length = (USHORT)pfi->FileNameLength;
out->Buffer[out->Length / sizeof(WCHAR)] = 0;
ExFreePool2(pfi, 'nIIF', NULL, 0);
ZwClose(hFile);
return TRUE;
}
ExFreePool2(pfi, 'nIIF', NULL, 0);
ZwClose(hFile);
return FALSE;
}
static BOOLEAN WantDelete(PIRP Irp, PIO_STACK_LOCATION s)
{
if (s->MajorFunction != IRP_MJ_SET_INFORMATION)
return FALSE;
FILE_INFORMATION_CLASS c = s->Parameters.SetFile.FileInformationClass;
if (c == FileDispositionInformation) {
PFILE_DISPOSITION_INFORMATION di = (PFILE_DISPOSITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
return di && di->DeleteFile;
}
if (c == FileDispositionInformationEx) {
PFILE_DISPOSITION_INFORMATION_EX dx = (PFILE_DISPOSITION_INFORMATION_EX)Irp->AssociatedIrp.SystemBuffer;
return dx && (dx->Flags & FILE_DISPOSITION_DELETE);
}
return FALSE;
}
static BOOLEAN WantRename(PIRP Irp, PIO_STACK_LOCATION s)
{
if (s->MajorFunction != IRP_MJ_SET_INFORMATION)
return FALSE;
FILE_INFORMATION_CLASS c = s->Parameters.SetFile.FileInformationClass;
if (c == FileRenameInformation || c == FileRenameInformationEx)
return Irp->AssociatedIrp.SystemBuffer != NULL;
return FALSE;
}
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 VOID LogAnsi3(PCSTR tag, ULONG upid, PUNICODE_STRING s1, PUNICODE_STRING s2)
{
ANSI_STRING a1 = { 0 }, a2 = { 0 };
CHAR buf[1024] = { 0 };
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);
}
static BOOLEAN QueryDevName(PDEVICE_OBJECT dev, PUNICODE_STRING out)
{
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 IsDASDRoot(PFILE_OBJECT fo)
{
if (!fo)
return TRUE;
if (fo->FileName.Length == 0 && fo->RelatedFileObject == NULL)
return TRUE;
return FALSE;
}
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_SCSI_PASS_THROUGH || code == IOCTL_SCSI_PASS_THROUGH_DIRECT)
return TRUE;
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;
return FALSE;
}
if (s->MajorFunction == IRP_MJ_SCSI)
return TRUE;
if (s->MajorFunction == IRP_MJ_WRITE || s->MajorFunction == IRP_MJ_FLUSH_BUFFERS)
return TRUE;
return FALSE;
}
NTSTATUS FileProtectDispatch(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;
BOOLEAN isWrite = (s->MajorFunction == IRP_MJ_WRITE);
BOOLEAN isDeleteReq = WantDelete(Irp, s);
BOOLEAN isRenameReq = WantRename(Irp, s);
BOOLEAN canQuery = (KeGetCurrentIrql() == PASSIVE_LEVEL);
WCHAR eb[512] = { 0 };
UNICODE_STRING exe = { 0 };
exe.Buffer = eb;
exe.MaximumLength = sizeof(eb);
if (canQuery) {
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)) {
BOOLEAN hit = FALSE;
WCHAR db[512] = { 0 };
UNICODE_STRING dev = { 0 };
dev.Buffer = db;
dev.MaximumLength = sizeof(db);
if (canQuery && QueryDevName(lower, &dev)) {
if (MatchBlockFile(&dev))
hit = TRUE;
}
else {
hit = TRUE;
}
if (!hit && s->FileObject && canQuery) {
WCHAR nb[512] = { 0 };
UNICODE_STRING n2 = { 0 };
n2.Buffer = nb;
n2.MaximumLength = sizeof(nb);
if (QueryDevName(s->FileObject->DeviceObject, &n2)) {
if (MatchBlockFile(&n2))
hit = TRUE;
}
}
if (!hit && s->MajorFunction == IRP_MJ_WRITE && s->FileObject && IsDASDRoot(s->FileObject))
hit = TRUE;
if (hit) {
blocked = TRUE;
if (canQuery) {
if (dev.Length == 0)
QueryDevName(lower, &dev);
LogAnsi3("BOOT_BLOCK", upid, &exe, dev.Length ? &dev : &exe);
}
}
}
}
if (!blocked && (isWrite || isDeleteReq || isRenameReq) && s->FileObject && canQuery) {
WCHAR pb[1024] = { 0 };
UNICODE_STRING path = { 0 };
path.Buffer = pb;
path.MaximumLength = sizeof(pb);
if (GetFilePathFromFileObject(s->FileObject, &path)) {
BOOLEAN hitFile = MatchBlockFile(&path);
BOOLEAN hitRansom = MatchBlockRansom(&path) && HasBlockedSuffix(&path);
if (hitFile || hitRansom) {
blocked = TRUE;
LogAnsi3(hitFile && !hitRansom ? "FILE_BLOCK" : "RANSOM_BLOCK", upid, &exe, &path);
}
}
else {
ULONG need = 0;
POBJECT_NAME_INFORMATION dev = NULL;
NTSTATUS qs2 = ObQueryNameString(s->FileObject->DeviceObject, NULL, 0, &need);
if (qs2 == STATUS_INFO_LENGTH_MISMATCH && need > 0) {
dev = (POBJECT_NAME_INFORMATION)ExAllocatePool2(POOL_FLAG_NON_PAGED, need, 'dOnF');
if (dev && NT_SUCCESS(ObQueryNameString(s->FileObject->DeviceObject, dev, need, &need)) && dev->Name.Buffer && dev->Name.Length) {
if (MatchBlockFile(&dev->Name)) {
blocked = TRUE;
UNICODE_STRING rule = { 0 };
rule.Buffer = GetMatchedBlockFileRule(&dev->Name);
rule.Length = rule.Buffer ? (USHORT)(wcslen(rule.Buffer) * sizeof(WCHAR)) : 0;
rule.MaximumLength = rule.Length;
LogAnsi3("FILE_BLOCK", upid, &exe, rule.Buffer ? &rule : &dev->Name);
}
}
if (dev)
ExFreePool2(dev, 'dOnF', NULL, 0);
}
}
}
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;
}
+236
View File
@@ -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;
}
-136
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@@ -1,136 +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 LogAnsi3(PCSTR tag, ULONG upid, PUNICODE_STRING s1, PUNICODE_STRING s2)
{
ANSI_STRING a1 = { 0 }, a2 = { 0 };
CHAR buf[1024] = { 0 };
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);
}
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)) {
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;
}
}
-190
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@@ -1,190 +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 VOID LogAnsi3(PCSTR tag, ULONG upid, PUNICODE_STRING s1, PUNICODE_STRING s2)
{
ANSI_STRING a1 = { 0 }, a2 = { 0 };
CHAR buf[1024] = { 0 };
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);
}
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));
}
-372
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@@ -1,372 +0,0 @@
#include <ntifs.h>
#include "DriverEntry.h"
#include "ProtectRules.h"
#include "ProtectMatch.h"
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 (!s || !s->Buffer || s->Length == 0)
return FALSE;
size_t s_len = s->Length / sizeof(WCHAR);
for (SIZE_T i = 0; list[i]; ++i) {
wchar_t* pat = list[i];
size_t pat_len = wcslen(pat);
if (wcschr(pat, L'*') || wcschr(pat, L'?')) {
if (WildMatchN(s->Buffer, s_len, pat))
return TRUE;
}
else {
if (s_len == pat_len && _wcsnicmp(s->Buffer, pat, pat_len) == 0)
return TRUE;
if (s_len > pat_len && _wcsnicmp(s->Buffer + s_len - pat_len, pat, pat_len) == 0)
return TRUE;
if (s_len > pat_len && _wcsnicmp(s->Buffer, pat, pat_len) == 0)
return TRUE;
}
}
return FALSE;
}
static wchar_t* MatchListGetRule(PUNICODE_STRING s, wchar_t** list)
{
if (!s || !s->Buffer || s->Length == 0)
return 0;
size_t s_len = s->Length / sizeof(WCHAR);
for (SIZE_T i = 0; list[i]; ++i) {
wchar_t* pat = list[i];
size_t pat_len = wcslen(pat);
if (wcschr(pat, L'*') || wcschr(pat, L'?')) {
if (WildMatchN(s->Buffer, s_len, pat))
return pat;
}
else {
if (s_len == pat_len && _wcsnicmp(s->Buffer, pat, pat_len) == 0)
return pat;
if (s_len > pat_len && _wcsnicmp(s->Buffer + s_len - pat_len, pat, pat_len) == 0)
return pat;
if (s_len > pat_len && _wcsnicmp(s->Buffer, pat, pat_len) == 0)
return pat;
}
}
return 0;
}
static __forceinline BOOLEAN USOK(PUNICODE_STRING s)
{
return s && s->Buffer && s->Length;
}
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++) {
SIZE_T j = 0;
for (; j < m; j++) {
WCHAR a = s[i + j], b = sub[j];
if (a >= L'A' && a <= L'Z') a += 32;
if (b >= L'A' && b <= L'Z') b += 32;
if (a != b) break;
}
if (j == m)
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);
if (n < m)
return FALSE;
return _wcsnicmp(s->Buffer + (n - m), name, m) == 0;
}
BOOLEAN IsRegistryBlock(PUNICODE_STRING key, PUNICODE_STRING valueName, PUNICODE_STRING exe)
{
if (USOK(key)) {
size_t klen0 = key->Length / sizeof(WCHAR);
if (WildMatchN(key->Buffer, klen0, L"\\REGISTRY\\MACHINE\\SYSTEM\\ControlSet001\\Services\\**"))
return FALSE;
}
if (USOK(exe)) {
if (IsWhitelist(exe))
return FALSE;
}
if (USOK(exe) && USOK(key)) {
size_t elen = exe->Length / sizeof(WCHAR);
size_t klen = key->Length / sizeof(WCHAR);
if (((elen >= 12 && _wcsnicmp(exe->Buffer + elen - 12, L"services.exe", 12) == 0) ||
(elen >= 11 && _wcsnicmp(exe->Buffer + elen - 11, L"svchost.exe", 11) == 0) ||
(elen >= 6 && _wcsnicmp(exe->Buffer + elen - 6, L"sc.exe", 6) == 0))) {
if (WildMatchN(key->Buffer, klen, L"\\REGISTRY\\**\\SYSTEM\\CurrentControlSet\\Services\\**"))
return FALSE;
}
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)) {
if (WildMatchN(key->Buffer, klen, L"\\REGISTRY\\**\\CurrentVersion\\Internet Settings\\ZoneMap") ||
WildMatchN(key->Buffer, klen, L"\\REGISTRY\\**\\CurrentVersion\\Internet Settings\\ZoneMap\\**") ||
WildMatchN(key->Buffer, klen, L"\\REGISTRY\\**\\CurrentVersion\\Notifications\\Data") ||
WildMatchN(key->Buffer, klen, L"\\REGISTRY\\**\\CurrentVersion\\Notifications\\Data\\**"))
return FALSE;
}
if ((elen >= 11 && _wcsnicmp(exe->Buffer + elen - 11, L"msiexec.exe", 11) == 0) ||
(elen >= 20 && _wcsnicmp(exe->Buffer + elen - 20, L"TrustedInstaller.exe", 20) == 0)) {
if (WildMatchN(key->Buffer, klen, L"\\REGISTRY\\**\\CurrentVersion\\Installer\\**") ||
WildMatchN(key->Buffer, klen, L"\\REGISTRY\\**\\CurrentVersion\\Uninstall\\**") ||
WildMatchN(key->Buffer, klen, L"\\REGISTRY\\**\\SYSTEM\\CurrentControlSet\\Services\\**"))
return FALSE;
}
if (elen >= 12 && _wcsnicmp(exe->Buffer + elen - 12, L"schtasks.exe", 12) == 0) {
if (WildMatchN(key->Buffer, klen, L"\\REGISTRY\\**\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\**"))
return FALSE;
}
}
if (USOK(key)) {
if (MatchBlockReg(key))
return TRUE;
}
if (USOK(valueName)) {
SIZE_T n = valueName->Length / sizeof(WCHAR);
for (SIZE_T i = 0; i < (SIZE_T)-1 && g_BlockReg[i]; ++i) {
wchar_t* pat = g_BlockReg[i];
if (wcschr(pat, L'\\') || wcschr(pat, L'*') || wcschr(pat, L'?'))
continue;
size_t m = wcslen(pat);
if (n == m && _wcsnicmp(valueName->Buffer, pat, m) == 0)
return TRUE;
}
}
return FALSE;
}
BOOLEAN GetProcessImagePathByPid(HANDLE pid, PUNICODE_STRING ProcessImagePath)
{
PEPROCESS process = NULL;
NTSTATUS status = PsLookupProcessByProcessId(pid, &process);
if (!NT_SUCCESS(status))
return FALSE;
HANDLE h = NULL;
status = ObOpenObjectByPointer(process, OBJ_KERNEL_HANDLE, NULL, PROCESS_QUERY_LIMITED_INFORMATION, *PsProcessType, KernelMode, &h);
if (!NT_SUCCESS(status)) {
ObDereferenceObject(process);
return FALSE;
}
ULONG len = 0;
status = ZwQueryInformationProcess(h, ProcessImageFileName, NULL, 0, &len);
if (status != STATUS_INFO_LENGTH_MISMATCH || len == 0) {
ZwClose(h);
ObDereferenceObject(process);
return FALSE;
}
PVOID buf = ExAllocatePool2(POOL_FLAG_NON_PAGED, len, 'iPgN');
if (!buf) {
ZwClose(h);
ObDereferenceObject(process);
return FALSE;
}
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;
ExFreePool2(buf, 'iPgN', NULL, 0);
ZwClose(h);
ObDereferenceObject(process);
return TRUE;
}
}
ExFreePool2(buf, 'iPgN', NULL, 0);
ZwClose(h);
ObDereferenceObject(process);
return FALSE;
}
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;
SIZE_T n = s->Length / sizeof(WCHAR);
for (SIZE_T i = 0; g_Blocksuffix[i]; ++i) {
wchar_t* ext = g_Blocksuffix[i];
SIZE_T m = wcslen(ext);
if (n >= m && _wcsnicmp(s->Buffer + (n - m), ext, m) == 0)
return TRUE;
}
return FALSE;
}
BOOLEAN MatchRemoteSuspectBin(PUNICODE_STRING img)
{
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")) {
BOOLEAN need = FALSE, http = FALSE;
for (SIZE_T i = 0; g_RemoteCmdRegsvr32Need[i]; ++i)
if (StrStrIW(s, g_RemoteCmdRegsvr32Need[i])) {
need = TRUE;
break;
}
for (SIZE_T i = 0; g_RemoteCmdIndicatorsHttp[i]; ++i)
if (StrStrIW(s, g_RemoteCmdIndicatorsHttp[i])) {
http = TRUE;
break;
}
if (need && 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)
{
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;
BOOLEAN isClr = StrStrIW(s, L"\\clr.dll") || StrStrIW(s, L"\\mscorwks.dll");
if (!isClr)
return FALSE;
if (!StrStrIW(s, L"\\Windows\\Microsoft.NET\\"))
return TRUE;
if (!StrStrIW(s, L"\\Framework\\") && !StrStrIW(s, L"\\Framework64\\"))
return TRUE;
return FALSE;
}
-22
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@@ -1,22 +0,0 @@
#pragma once
#include <ntifs.h>
wchar_t* GetMatchedBlockRegRule(PUNICODE_STRING s);
wchar_t* GetMatchedBlockFileRule(PUNICODE_STRING s);
BOOLEAN IsWhitelist(PUNICODE_STRING s);
BOOLEAN GetProcessImagePathByPid(HANDLE pid, PUNICODE_STRING ProcessImagePath);
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);
-224
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@@ -1,224 +0,0 @@
#include <ntifs.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;
typedef struct _OBCTX {
POBJECT_TYPE ProcessType;
POBJECT_TYPE ThreadType;
}OBCTX, * POBCTX;
static PVOID g_PsSetProcessProtection = NULL;
static BOOLEAN g_ProcNotifyEnabled = FALSE;
static PVOID g_ObCookie = NULL;
static OBCTX g_ObCtx = { 0 };
static HANDLE g_ProtectedPid = NULL;
static PWCH g_ObAltitudeBuf = NULL;
static BOOLEAN IsProcNameEq(PEPROCESS p, PCSTR name)
{
PCSTR img = PsGetProcessImageFileName(p);
if (!img || !name)
return FALSE;
ANSI_STRING a = { 0 }, b = { 0 };
RtlInitAnsiString(&a, img);
RtlInitAnsiString(&b, name);
return RtlEqualString(&a, &b, TRUE) ? TRUE : FALSE;
}
static NTSTATUS SetPPL31(PEPROCESS p)
{
if (!g_PsSetProcessProtection)
return STATUS_PROCEDURE_NOT_FOUND;
PS_PROTECTION pr = { 0 };
pr.Level = 0x31;
((VOID(NTAPI*)(PEPROCESS, PS_PROTECTION))g_PsSetProcessProtection)(p, pr);
return STATUS_SUCCESS;
}
static VOID LogSet(HANDLE pid, NTSTATUS st)
{
CHAR b[128] = { 0 };
RtlStringCchPrintfA(b, RTL_NUMBER_OF(b), "PROC_PPL_SET | %u | 0x31 | 0x%08X", (ULONG)(ULONG_PTR)pid, st);
SendPipeLog(b, strlen(b));
}
static VOID UpdateProtectedPid(HANDLE pid)
{
InterlockedExchangePointer((PVOID*)&g_ProtectedPid, pid);
}
static VOID BootstrapExisting(VOID)
{
typedef PEPROCESS(NTAPI* PFN_PsGetNextProcess)(PEPROCESS);
UNICODE_STRING n = RTL_CONSTANT_STRING(L"PsGetNextProcess");
PFN_PsGetNextProcess fp = (PFN_PsGetNextProcess)MmGetSystemRoutineAddress(&n);
if (!fp)
return;
PEPROCESS p = fp(NULL);
while (p) {
if (IsProcNameEq(p, "PYAS.exe")) {
HANDLE pid = PsGetProcessId(p);
NTSTATUS s = SetPPL31(p);
UpdateProtectedPid(pid);
LogSet(pid, s);
}
PEPROCESS nx = fp(p);
ObDereferenceObject(p);
p = nx;
}
}
static VOID StripProcessAccess(POB_PRE_OPERATION_INFORMATION Info)
{
ACCESS_MASK d = PROCESS_TERMINATE | PROCESS_VM_OPERATION | PROCESS_VM_WRITE | PROCESS_CREATE_THREAD | PROCESS_SET_INFORMATION | PROCESS_SET_LIMITED_INFORMATION | PROCESS_SUSPEND_RESUME | PROCESS_DUP_HANDLE;
if (Info->Operation == OB_OPERATION_HANDLE_CREATE) {
Info->Parameters->CreateHandleInformation.DesiredAccess &= ~d;
}
else {
Info->Parameters->DuplicateHandleInformation.DesiredAccess &= ~d;
}
}
static VOID StripThreadAccess(POB_PRE_OPERATION_INFORMATION Info)
{
ACCESS_MASK d = THREAD_TERMINATE | THREAD_SUSPEND_RESUME | THREAD_SET_CONTEXT | THREAD_IMPERSONATE | THREAD_DIRECT_IMPERSONATION;
if (Info->Operation == OB_OPERATION_HANDLE_CREATE) {
Info->Parameters->CreateHandleInformation.DesiredAccess &= ~d;
}
else {
Info->Parameters->DuplicateHandleInformation.DesiredAccess &= ~d;
}
}
static OB_PREOP_CALLBACK_STATUS ObPreOperation(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 (!ExAcquireRundownProtection(&g_Rundown))
return OB_PREOP_SUCCESS;
if (Info->ObjectType == g_ObCtx.ProcessType) {
PEPROCESS pe = (PEPROCESS)Info->Object;
HANDLE tpid = PsGetProcessId(pe);
if (g_ProtectedPid && tpid == g_ProtectedPid) {
if (PsGetCurrentProcessId() != g_ProtectedPid) StripProcessAccess(Info);
}
}
else if (Info->ObjectType == g_ObCtx.ThreadType) {
PETHREAD th = (PETHREAD)Info->Object;
HANDLE owner = PsGetThreadProcessId(th);
if (g_ProtectedPid && owner == g_ProtectedPid) {
if (PsGetCurrentProcessId() != g_ProtectedPid) StripThreadAccess(Info);
}
}
ExReleaseRundownProtection(&g_Rundown);
return OB_PREOP_SUCCESS;
}
static NTSTATUS InitObCallbacks(VOID)
{
g_ObCtx.ProcessType = *PsProcessType;
g_ObCtx.ThreadType = *PsThreadType;
static OB_OPERATION_REGISTRATION ops[2];
RtlZeroMemory(ops, sizeof(ops));
ops[0].ObjectType = PsProcessType;
ops[0].Operations = OB_OPERATION_HANDLE_CREATE | OB_OPERATION_HANDLE_DUPLICATE;
ops[0].PreOperation = ObPreOperation;
ops[1].ObjectType = PsThreadType;
ops[1].Operations = OB_OPERATION_HANDLE_CREATE | OB_OPERATION_HANDLE_DUPLICATE;
ops[1].PreOperation = ObPreOperation;
const WCHAR* altStatic = L"321000";
USHORT alen = (USHORT)(wcslen(altStatic) * sizeof(WCHAR));
g_ObAltitudeBuf = (PWCH)ExAllocatePool2(POOL_FLAG_NON_PAGED, alen + sizeof(WCHAR), 'tlaO');
if (!g_ObAltitudeBuf)
return STATUS_INSUFFICIENT_RESOURCES;
RtlCopyMemory(g_ObAltitudeBuf, altStatic, alen);
g_ObAltitudeBuf[alen / sizeof(WCHAR)] = 0;
UNICODE_STRING alt = { 0 };
alt.Buffer = g_ObAltitudeBuf;
alt.Length = alen;
alt.MaximumLength = alen;
OB_CALLBACK_REGISTRATION reg = { 0 };
reg.Version = OB_FLT_REGISTRATION_VERSION;
reg.OperationRegistrationCount = 2;
reg.RegistrationContext = g_ObAltitudeBuf;
reg.Altitude = alt;
reg.OperationRegistration = ops;
NTSTATUS s = ObRegisterCallbacks(&reg, &g_ObCookie);
if (!NT_SUCCESS(s)) {
ExFreePool2(g_ObAltitudeBuf, 'tlaO', NULL, 0);
g_ObAltitudeBuf = NULL;
}
return s;
}
static VOID ProcessNotifyEx(PEPROCESS Process, HANDLE ProcessId, PPS_CREATE_NOTIFY_INFO CreateInfo)
{
if (g_Unloading)
return;
if (!ExAcquireRundownProtection(&g_Rundown))
return;
if (CreateInfo) {
if (IsProcNameEq(Process, "PYAS.exe")) {
NTSTATUS s = SetPPL31(Process);
UpdateProtectedPid(ProcessId);
LogSet(ProcessId, s);
}
}
else {
if (g_ProtectedPid && ProcessId == g_ProtectedPid) UpdateProtectedPid(NULL);
}
ExReleaseRundownProtection(&g_Rundown);
}
NTSTATUS InitProcessProtect(VOID)
{
UNICODE_STRING n = RTL_CONSTANT_STRING(L"PsSetProcessProtection");
g_PsSetProcessProtection = MmGetSystemRoutineAddress(&n);
NTSTATUS s = InitObCallbacks();
if (!NT_SUCCESS(s))
return s;
s = PsSetCreateProcessNotifyRoutineEx(ProcessNotifyEx, FALSE);
if (NT_SUCCESS(s))
g_ProcNotifyEnabled = TRUE;
BootstrapExisting();
return STATUS_SUCCESS;
}
VOID UninitProcessProtect(VOID)
{
if (g_ProcNotifyEnabled) {
PsSetCreateProcessNotifyRoutineEx(ProcessNotifyEx, TRUE);
g_ProcNotifyEnabled = FALSE;
}
if (g_ObCookie) {
ObUnRegisterCallbacks(g_ObCookie);
g_ObCookie = NULL;
}
if (g_ObAltitudeBuf) {
ExFreePool2(g_ObAltitudeBuf, 'tlaO', NULL, 0);
g_ObAltitudeBuf = NULL;
}
}
+137
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#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;
}
}
-131
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@@ -1,131 +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;
}
static VOID LogAnsi3(PCSTR tag, ULONG upid, PUNICODE_STRING s1, PUNICODE_STRING s2)
{
ANSI_STRING a1 = { 0 }, a2 = { 0 };
CHAR buf[1024] = { 0 };
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);
}
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;
}
+51
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@@ -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;
}
}
-96
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@@ -1,96 +0,0 @@
#include <ntifs.h>
#include "DriverEntry.h"
#include "ProtectMatch.h"
static BOOLEAN g_RemoteNotifyEnabled = FALSE;
static VOID LogAnsi3(PCSTR tag, ULONG upid, PUNICODE_STRING s1, PUNICODE_STRING s2)
{
ANSI_STRING a1 = { 0 }, a2 = { 0 };
CHAR buf[1024] = { 0 };
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);
}
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;
}
}
-295
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@@ -1,295 +0,0 @@
#include <ntifs.h>
#include "ProtectRules.h"
wchar_t* g_Whitelist[] = {
L"\\Device\\HarddiskVolume*\\Windows\\**",
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*\\reg.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\cmd.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\mshta.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\wscript.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\cscript.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\schtasks.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\diskpart.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\format.com",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\mountvol.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*\\cipher.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\net.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\net1.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\msiexec.exe",
L"\\Device\\HarddiskVolume*\\Windows\\Sys*\\WindowsPowerShell\\*\\powershell.exe",
L"\\Device\\HarddiskVolume*\\Program*\\PowerShell\\*\\pwsh.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\\**",
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\\MACHINE\\SYSTEM\\*ControlSet*\\Control\\**",
L"\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Enum\\**",
L"\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Services\\**",
L"\\REGISTRY\\MACHINE\\SYSTEM\\MountedDevices\\**",
L"\\REGISTRY\\MACHINE\\SYSTEM\\Setup\\**",
L"\\REGISTRY\\MACHINE\\SOFTWARE\\Classes\\**",
L"\\REGISTRY\\MACHINE\\SOFTWARE\\Policies\\Microsoft\\MMC\\**",
L"\\REGISTRY\\MACHINE\\SOFTWARE\\Policies\\Microsoft\\Windows\\System\\**",
L"\\REGISTRY\\MACHINE\\SOFTWARE\\Wow6432Node\\**",
L"\\REGISTRY\\MACHINE\\SOFTWARE\\Microsoft\\Cryptography\\MachineGuid",
L"\\REGISTRY\\MACHINE\\**\\Microsoft\\Windows Defender\\**",
L"\\REGISTRY\\**\\SOFTWARE\\Microsoft\\Active Setup\\Installed Components\\*\\StubPath",
L"\\REGISTRY\\**\\SOFTWARE\\Microsoft\\Windows*\\CurrentVersion\\**",
L"\\REGISTRY\\**\\SOFTWARE\\Microsoft\\Windows Script Host\\Settings\\**",
L"\\REGISTRY\\USER\\*_Classes\\*\\shell\\open\\command\\**",
L"\\REGISTRY\\USER\\*_Classes\\CLSID\\{fdb00e52-a214-4aa1-8fba-4357bb0072ec}\\**",
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"Shell",
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
};
+487
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@@ -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;
}
-25
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@@ -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[];
-80
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@@ -1,80 +0,0 @@
#include <ntifs.h>
#include "DriverEntry.h"
#include "ProtectMatch.h"
static BOOLEAN g_ScreenImgCb = FALSE;
static VOID LogAnsi3(PCSTR tag, ULONG upid, PUNICODE_STRING s1, PUNICODE_STRING s2)
{
ANSI_STRING a1 = { 0 }, a2 = { 0 };
CHAR buf[1024] = { 0 };
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);
}
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;
}
}
+131 -28
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@@ -1,17 +1,9 @@
# 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" />
## Readme Language
English : https://github.com/87owo/PYAS/blob/main/README.md
繁體中文 : https://github.com/87owo/PYAS/blob/main/README_zh_TW.md
简体中文 : https://github.com/87owo/PYAS/blob/main/README_zh_CN.md
## Requirements
Python 3.10 is recommended. Other Python versions may require different pip commands.
@@ -36,23 +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
@@ -63,15 +54,115 @@ PYAS/
└── ... # Other supplementary folders and files
```
## Program Architecture
## Architecture diagram
PYAS antivirus software complete program flow architecture diagram.
PYAS Security antivirus software general architecture diagram.
<img width="23000" height="6000" alt="PYAS_Architecture" src="https://github.com/user-attachments/assets/3a7ce637-c2b3-4719-9658-07f286cfa879" />
```mermaid
graph TD
%% Global Styles
classDef ui fill:#e1f5fe,stroke:#01579b,stroke-width:2px;
classDef logic fill:#fff9c4,stroke:#fbc02d,stroke-width:2px;
classDef engine fill:#e8f5e9,stroke:#2e7d32,stroke-width:2px;
classDef thread fill:#f3e5f5,stroke:#7b1fa2,stroke-width:2px;
classDef kernel fill:#ffebee,stroke:#c62828,stroke-width:2px;
classDef data fill:#eceff1,stroke:#455a64,stroke-width:2px,stroke-dasharray: 5 5;
## Packaged Releases
User((User))
Packaged Releases Download: https://github.com/87owo/PYAS/releases
subgraph Presentation_Layer ["Presentation Layer (View)"]
direction TB
UI_Static["PYAS_Interface.py<br/>(Ui_main_window Class)"]:::ui
UI_Controller["PYAS.py<br/>(MainWindow_Controller Class)"]:::ui
TrayIcon["System Tray Icon"]:::ui
User <--> UI_Controller
UI_Static --- UI_Controller
UI_Controller --- TrayIcon
end
subgraph Core_Logic_Layer ["Core Logic & Controller"]
direction TB
Init_Env["Initialization<br/>(init_environ, init_variable,<br/>init_windll)"]:::logic
Config_Mgr["Configuration Manager<br/>(load_config, save_config)"]:::logic
subgraph System_Tools ["System Tools"]
Sys_Repair["System Repair<br/>(repair_system_mbr,<br/>repair_system_image, etc.)"]:::logic
Sys_Clean["System Cleaner<br/>(clean_button, traverse_temp)"]:::logic
Proc_Mgr["Process Manager<br/>(list_process, kill_process)"]:::logic
List_Mgr["List Manager<br/>(manage_named_list:<br/>Whitelist/Quarantine)"]:::logic
end
UI_Controller --> Init_Env
Init_Env --> Config_Mgr
UI_Controller --> System_Tools
end
subgraph Protection_Layer ["Real-time Protection Threads (Daemons)"]
direction TB
Thread_Proc["Process Guard Thread<br/>(protect_proc_thread)<br/>[WMI/Snapshot]"]:::thread
Thread_File["File Guard Thread<br/>(protect_file_thread)<br/>[ReadDirectoryChangesW]"]:::thread
Thread_Net["Network Guard Thread<br/>(protect_net_thread)<br/>[GetExtendedTcpTable]"]:::thread
Thread_Sys["System Guard Thread<br/>(protect_system_thread)<br/>[Reg/MBR Check]"]:::thread
Thread_Popup["Popup Blocker Thread<br/>(popup_intercept_thread)<br/>[EnumWindows]"]:::thread
Thread_Pipe["Driver IPC Thread<br/>(pipe_server_thread)<br/>[NamedPipe Server]"]:::thread
Init_Env --> Thread_Proc
Init_Env --> Thread_File
Init_Env --> Thread_Net
Init_Env --> Thread_Sys
Init_Env --> Thread_Popup
Init_Env --> Thread_Pipe
end
subgraph Engine_Layer ["Detection Engine (PYAS_Engine.py)"]
direction TB
Scan_Worker["Scan Worker<br/>(scan_worker / scan_engine)"]:::engine
subgraph Scanners
Sign_Check["Signature Scanner<br/>(sign_scanner)<br/>[WinVerifyTrust]"]:::engine
AI_Model["AI Model Scanner<br/>(model_scanner)<br/>[ONNX/ResNet]"]:::engine
Yara_Rules["Rule Scanner<br/>(rule_scanner)<br/>[Yara/IP Lists]"]:::engine
end
Thread_Proc --> Scan_Worker
Thread_File --> Scan_Worker
Thread_Net --> Scan_Worker
UI_Controller -->|Manual Scan| Scan_Worker
Scan_Worker --> Sign_Check
Scan_Worker --> AI_Model
Scan_Worker --> Yara_Rules
end
subgraph Kernel_OS_Layer ["Windows Kernel & Driver"]
direction TB
WinAPI["Windows API (ctypes)<br/>(kernel32, user32, ntdll,<br/>advapi32, iphlpapi, psapi)"]:::kernel
Driver_Sys["Kernel Driver<br/>(PYAS_Driver.sys)"]:::kernel
OS_FS["File System (NTFS)"]:::kernel
OS_Net["Network Stack"]:::kernel
Init_Env -- Load DLLs --> WinAPI
Thread_File -- Monitor --> OS_FS
Thread_Net -- Monitor --> OS_Net
Thread_Proc -- Suspend/Kill --> WinAPI
Thread_Pipe <==>|"Named Pipe IPC<br/>(\\.\pipe\PYAS_Output_Pipe)"| Driver_Sys
Driver_Sys -- Callback/Block --> WinAPI
end
subgraph Data_Persistence ["Data & Resources"]
Config_File[("Config.json")]:::data
Model_Files[("Model Files<br/>(.onnx)")]:::data
Rule_Files[("Rule Files<br/>(.yar)")]:::data
Quarantine_Dir[("/Quarantine/")]:::data
Config_Mgr <--> Config_File
AI_Model <--> Model_Files
Yara_Rules <--> Rule_Files
List_Mgr <--> Quarantine_Dir
end
```
## Support System
@@ -80,12 +171,24 @@ Packaged Releases Download: https://github.com/87owo/PYAS/releases
| Minimum | Administrator | >= Windows 10 (20H1) | 1 GHz | 200MB | 100MB |
| Recommend | Administrator | >= Windows 10 (21H2) | 3 GHz | 500MB | 200MB |
## Packaged Releases
Download the installer. If it is incompatible with your system, you can repackage it yourself.
Packaged Download: https://github.com/87owo/PYAS/releases
## Official Website
Official Website : https://pyantivirus.wixsite.com/pyas
If you are interested in this project, you can visit the website to see other related content.
Open Source Website : https://github.com/87owo/PYAS
Source Available : https://github.com/87owo/PYAS
Official Website : https://pyas-security.com/antivirus
## Project License
https://github.com/87owo/PYAS/blob/main/LICENSE.txt
For any questions, needs, or bug feedback, please contact us through the following website.
Source Issues : https://github.com/87owo/PYAS/issues
Official Email : mailto:service.pyas@gmail.com
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@@ -1,91 +0,0 @@
# PYAS
使用 Python 和 C 编写的杀毒软件,并通过深度学习和行为监控阻止威胁!
<img width="2245" height="1477" alt="PYAS_UI" src="https://github.com/user-attachments/assets/87d40261-7655-49ad-a19c-1ffcca60584f" />
## 说明语言
English : https://github.com/87owo/PYAS/blob/main/README.md
繁體中文 : https://github.com/87owo/PYAS/blob/main/README_zh_TW.md
简体中文 : https://github.com/87owo/PYAS/blob/main/README_zh_CN.md
## 安装需求
建议使用 Python 3.10。其他版本的 Python 可能需要不同的 pip 指令。
```
pip install numpy==1.26.4
pip install onnxruntime==1.18.1
pip install pefile==2023.2.7
pip install Pillow==11.0.0
pip install pyperclip==1.9.0
pip install PySide6==6.9.1
pip install requests==2.32.4
pip install yara-python==4.5.4
```
## 文件讯息
以下列出所有相关代码与文件的存放位置。
```
PYAS/
├── Engine/
│ ├── Models/
│ │ ├── convert.py # 将可执行文件或其他文件转换为图片
│ │ └── train.py # TensorFlow CNN 模型训练完整代码
│ │
│ └── Rules/
│ ├── rules.yar # YARA 病毒特征码规则匹配
│ └── rules.ips # IP 网络地址规则匹配
│
├── Plugins/
│ └── Filter/
│ ├── DriverEntry.c # 驱动主入口与初始化逻辑
│ ├── DriverEntry.h # 全局驱动定义、常量与函数
│ ├── DriverPipe.c # 内核与用户层的管道日志传输实现
│ ├── ProtectBoot.c # 磁盘引导区写入保护
│ ├── ProtectImage.c # 映像加载监控与 shellcode 检测
│ ├── ProtectInject.c # 进程与线程控制,防止注入
│ ├── ProtectReg.c # 注册表修改保护
│ ├── ProtectRules.c # 白名单、阻止名单与文件/注册表匹配逻辑
│ └── ProtectRules.h # 保护规则声明
│
├── PYAS.py # 主应用程序入口点与 UI 到引擎的接口
├── PYAS_Config.py # 配置加载、保存与全局参数
├── PYAS_Engine.py # 核心扫描引擎:YARA、IP、ONNX 模型执行
├── PYAS_Interface.py # 用户界面组件与事件处理
├── PYAS_Resource.py # 静态图片与图标资源管理
├── PYAS_Version.py # 版本元数据,用于打包与更新
└── ... # 其他补充文件夹与文件
```
## 代码架构
PYAS 杀毒软件完整代码流程架构图。
<img width="23000" height="6000" alt="PYAS_Architecture" src="https://github.com/user-attachments/assets/3a7ce637-c2b3-4719-9658-07f286cfa879" />
## 安装版本
打包发行版下载:https://github.com/87owo/PYAS/releases
## 系统需求
| 配置要求 | 权限 | 系统版本 | 处理器 | 可用内存空间 | 可用存储空间 |
| ------- | ----- | ------ | ----- | ------------ | ---------- |
| 最低配置 | 管理员 | >= Windows 10 (20H1) | 1 GHz | 200MB | 100MB |
| 推荐配置 | 管理员 | >= Windows 10 (21H2) | 3 GHz | 300MB | 200MB |
## 官方网站
官方网站 : https://pyantivirus.wixsite.com/pyas
开源网站 : https://github.com/87owo/PYAS
## 授权条款
https://github.com/87owo/PYAS/blob/main/LICENSE.txt
-91
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@@ -1,91 +0,0 @@
# PYAS
使用 Python 和 C 開發的防毒軟體,並透過深度學習和行為監控來阻止威脅!
<img width="2245" height="1477" alt="PYAS_UI" src="https://github.com/user-attachments/assets/87d40261-7655-49ad-a19c-1ffcca60584f" />
## 說明語言
English : https://github.com/87owo/PYAS/blob/main/README.md
繁體中文 : https://github.com/87owo/PYAS/blob/main/README_zh_TW.md
简体中文 : https://github.com/87owo/PYAS/blob/main/README_zh_CN.md
## 安裝需求
建議使用 Python 3.10。其他版本的 Python 可能需要不同的 pip 指令。
```
pip install numpy==1.26.4
pip install onnxruntime==1.18.1
pip install pefile==2023.2.7
pip install Pillow==11.0.0
pip install pyperclip==1.9.0
pip install PySide6==6.9.1
pip install requests==2.32.4
pip install yara-python==4.5.4
```
## 檔案資訊
以下列出所有相關程式碼與文件的存放位置。
```
PYAS/
├── Engine/
│ ├── Models/
│ │ ├── convert.py # 將可執行檔或其他檔案轉換為圖片
│ │ └── train.py # TensorFlow CNN 模型訓練完整程式碼
│ │
│ └── Rules/
│ ├── rules.yar # YARA 病毒特徵碼規則匹配
│ └── rules.ips # IP 網路位址規則匹配
│
├── Plugins/
│ └── Filter/
│ ├── DriverEntry.c # 驅動主入口與初始化邏輯
│ ├── DriverEntry.h # 全域驅動定義、常數與函式
│ ├── DriverPipe.c # 核心層與使用者層的管道日誌傳輸實作
│ ├── ProtectBoot.c # 磁碟開機區寫入保護
│ ├── ProtectImage.c # 映像載入監控與 shellcode 偵測
│ ├── ProtectInject.c # 程序與執行緒控制,防止注入
│ ├── ProtectReg.c # 登錄檔修改保護
│ ├── ProtectRules.c # 白名單、封鎖清單與檔案/登錄匹配邏輯
│ └── ProtectRules.h # 保護規則宣告
│
├── PYAS.py # 主應用程式入口點與 UI 到引擎的介面
├── PYAS_Config.py # 組態載入、儲存與全域參數
├── PYAS_Engine.py # 核心掃描引擎:YARA、IP、ONNX 模型執行
├── PYAS_Interface.py # 使用者介面元件與事件處理
├── PYAS_Resource.py # 靜態圖片與圖示資源管理
├── PYAS_Version.py # 版本中繼資料,用於打包與更新
└── ... # 其他補充資料夾與檔案
```
## 程式架構
PYAS 防毒軟體完整程式流程架構圖。
<img width="23000" height="6000" alt="PYAS_Architecture" src="https://github.com/user-attachments/assets/3a7ce637-c2b3-4719-9658-07f286cfa879" />
## 安裝版本
打包發行版下載 : https://github.com/87owo/PYAS/releases
## 系統需求
| 配置要求 | 權限 | 系統版本 | 處理器 | 可用記憶體空間 | 可用儲存空間 |
| ------- | ---- | ------- | ------ | ------------ | ----------- |
| 最低配置 | 管理員 | >= Windows 10 (20H1) | 1 GHz | 200MB | 100MB |
| 推薦配置 | 管理員 | >= Windows 10 (21H2) | 3 GHz | 300MB | 200MB |
## 官方網站
官方網站 : https://pyantivirus.wixsite.com/pyas
開源網站 : https://github.com/87owo/PYAS
## 授權條款
https://github.com/87owo/PYAS/blob/main/LICENSE.txt