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Author SHA1 Message Date
87owo 133e3208ec Add files via upload 2026-05-14 20:02:53 +08:00
87owo 17c6fd6d0f Add files via upload 2026-05-13 18:37:07 +08:00
87owo 2aa7ea43b8 Add files via upload 2026-05-13 17:56:05 +08:00
87owo 6d7dbfac31 Add files via upload 2026-05-13 00:51:04 +08:00
87owo d4942c6dd6 Add files via upload 2026-05-13 00:49:54 +08:00
87owo 39ae3c24f6 Add files via upload 2026-05-12 22:41:11 +08:00
9 changed files with 818 additions and 24 deletions

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+120 -6
View File
@@ -18,9 +18,6 @@ JSONL_PATH = "pe_features.jsonl"
BATCH_SIZE = 1000
MAX_FILE_SIZE = 4 * 1024 * 1024 * 1024
MAX_WORKERS = os.cpu_count() - 2
TARGET_EXTENSIONS = {
'.exe', '.dll', '.sys', '.ocx', '.scr', '.efi', '.acm', '.ax', '.cpl', '.drv', '.com', '.mui', '.pyd'
}
####################################################################################################
@@ -127,6 +124,115 @@ class FeatureExtractor:
probs = counts[counts > 0] / len(arr)
return float(-np.sum(probs * np.log2(probs)))
@classmethod
def _extract_overlay_features(cls, pe, fsize):
overlay_offset = pe.get_overlay_data_start_offset()
if not overlay_offset or overlay_offset >= fsize:
return {"HasOverlay": 0.0, "OverlaySize": 0.0, "OverlayRatio": 0.0, "OverlayEntropy": 0.0}
overlay_data = pe.get_overlay()
if not overlay_data:
return {"HasOverlay": 0.0, "OverlaySize": 0.0, "OverlayRatio": 0.0, "OverlayEntropy": 0.0}
sz = len(overlay_data)
return {
"HasOverlay": 1.0,
"OverlaySize": float(sz),
"OverlayRatio": float(sz) / float(fsize),
"OverlayEntropy": cls._calc_entropy(overlay_data)
}
@classmethod
def _extract_rich_header(cls, pe):
if not hasattr(pe, 'RICH_HEADER') or not pe.RICH_HEADER:
return {"HasRichHeader": 0.0, "RichHeaderCount": 0.0}
return {
"HasRichHeader": 1.0,
"RichHeaderCount": float(len(pe.RICH_HEADER.values) // 2) if hasattr(pe.RICH_HEADER, 'values') else 0.0
}
@classmethod
def _extract_ep_anomalies(cls, pe):
if not hasattr(pe, 'OPTIONAL_HEADER') or not hasattr(pe, 'sections') or not pe.sections:
return {"EntryPointSectionIndex": -1.0, "EntryPointInExecutable": 0.0, "EntryPointInLastSection": 0.0}
ep = pe.OPTIONAL_HEADER.AddressOfEntryPoint
ep_section_idx = -1
ep_in_exec = 0.0
for idx, sec in enumerate(pe.sections):
if sec.VirtualAddress <= ep < (sec.VirtualAddress + sec.Misc_VirtualSize):
ep_section_idx = idx
if sec.Characteristics & 0x20000000:
ep_in_exec = 1.0
break
return {
"EntryPointSectionIndex": float(ep_section_idx),
"EntryPointInExecutable": ep_in_exec,
"EntryPointInLastSection": 1.0 if ep_section_idx == len(pe.sections) - 1 else 0.0
}
@classmethod
def _extract_advanced_resources(cls, pe):
res_data = {
"ResourceMaxEntropy": 0.0,
"ResourceMinEntropy": 0.0,
"ResourceMeanEntropy": 0.0,
"ResourceLangCount": 0.0,
"ResourceRCDataCount": 0.0
}
if not hasattr(pe, 'DIRECTORY_ENTRY_RESOURCE'):
return res_data
entropies = []
langs = set()
rcdata_count = 0
for entry_type in pe.DIRECTORY_ENTRY_RESOURCE.entries:
if hasattr(entry_type, 'id') and entry_type.id == 10:
rcdata_count += len(getattr(entry_type.directory, 'entries', []))
if not hasattr(entry_type, 'directory'):
continue
for entry_id in entry_type.directory.entries:
if not hasattr(entry_id, 'directory'):
continue
for entry_lang in entry_id.directory.entries:
if hasattr(entry_lang, 'id'):
langs.add(entry_lang.id)
if hasattr(entry_lang, 'data'):
try:
data = pe.get_data(entry_lang.data.struct.OffsetToData, entry_lang.data.struct.Size)
entropies.append(cls._calc_entropy(data))
except Exception:
continue
res_data["ResourceLangCount"] = float(len(langs))
res_data["ResourceRCDataCount"] = float(rcdata_count)
if entropies:
res_data["ResourceMaxEntropy"] = max(entropies)
res_data["ResourceMinEntropy"] = min(entropies)
res_data["ResourceMeanEntropy"] = sum(entropies) / len(entropies)
return res_data
@classmethod
def _extract_load_config(cls, pe):
cfg = {"HasLoadConfig": 0.0, "HasCFG": 0.0, "HasSEHTable": 0.0}
if hasattr(pe, 'DIRECTORY_ENTRY_LOAD_CONFIG'):
cfg["HasLoadConfig"] = 1.0
struct = pe.DIRECTORY_ENTRY_LOAD_CONFIG.struct
if getattr(struct, 'GuardCFFunctionTable', 0) != 0:
cfg["HasCFG"] = 1.0
if getattr(struct, 'SEHandlerTable', 0) != 0:
cfg["HasSEHTable"] = 1.0
return cfg
@classmethod
def extract(cls, file_bytes, file_path, fsize):
if fsize == 0: return None
@@ -134,6 +240,7 @@ class FeatureExtractor:
try:
pe = pefile.PE(data=file_bytes, fast_load=True)
base['TrustSigned'] = verify_signature(file_path)
base['FileEntropy'] = cls._calc_entropy(file_bytes)
base['FileSize'] = fsize
@@ -244,7 +351,8 @@ class FeatureExtractor:
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_EXPORT'],
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_RESOURCE'],
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_DEBUG'],
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_TLS']
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_TLS'],
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG']
])
except Exception: pass
@@ -286,6 +394,12 @@ class FeatureExtractor:
base['DebugCount'] = len(pe.DIRECTORY_ENTRY_DEBUG) if hasattr(pe, 'DIRECTORY_ENTRY_DEBUG') else 0.0
base.update(cls._extract_overlay_features(pe, fsize))
base.update(cls._extract_rich_header(pe))
base.update(cls._extract_ep_anomalies(pe))
base.update(cls._extract_advanced_resources(pe))
base.update(cls._extract_load_config(pe))
for k in base: base[k] = cls._safe_float(base[k])
return {"Base": base, "DLLs": list(dlls), "APIs": list(apis)}
@@ -344,11 +458,11 @@ def _extract_worker(file_path, label):
def scan_and_save(path, label, existing_hashes):
print(f"\n[*] Scanning path: {path} (Label={label})")
files = [path] if os.path.isfile(path) else [os.path.join(r, f) for r, _, fs in os.walk(path) for f in fs if os.path.splitext(f)[1].lower() in TARGET_EXTENSIONS]
files = [path] if os.path.isfile(path) else [os.path.join(r, f) for r, _, fs in os.walk(path) for f in fs]
total = len(files)
if total == 0:
print("[-] No valid PE files found.")
print("[-] No files found.")
return
print(f"[*] Found {total} files. Starting {MAX_WORKERS}-process extraction...\n")
+545
View File
@@ -0,0 +1,545 @@
import os, sys, math, json, pefile, datetime
import numpy as np
import onnxruntime as ort
import ctypes, ctypes.wintypes
####################################################################################################
MODEL_FILE = "Pefile_General_S1.onnx"
FEATURE_FILE = "features.json"
MAX_FILE_SIZE = 4 * 1024 * 1024 * 1024
TARGET_EXTENSIONS = {
'.exe', '.dll', '.sys', '.ocx', '.scr', '.efi', '.acm', '.ax', '.cpl', '.drv', '.com', '.mui', '.pyd'
}
####################################################################################################
class WINTRUST_FILE_INFO(ctypes.Structure):
_fields_ = [
("cbStruct", ctypes.wintypes.DWORD),
("pcwszFilePath", ctypes.wintypes.LPCWSTR),
("hFile", ctypes.wintypes.HANDLE),
("pgKnownSubject", ctypes.wintypes.LPVOID)
]
class WINTRUST_DATA_UNION(ctypes.Union):
_fields_ = [
("pFile", ctypes.POINTER(WINTRUST_FILE_INFO)),
("pCatalog", ctypes.wintypes.LPVOID),
("pBlob", ctypes.wintypes.LPVOID),
("pSgnr", ctypes.wintypes.LPVOID),
("pCert", ctypes.wintypes.LPVOID)
]
class WINTRUST_DATA(ctypes.Structure):
_fields_ = [
("cbStruct", ctypes.wintypes.DWORD),
("pPolicyCallbackData", ctypes.wintypes.LPVOID),
("pSIPClientData", ctypes.wintypes.LPVOID),
("dwUIChoice", ctypes.wintypes.DWORD),
("fdwRevocationChecks", ctypes.wintypes.DWORD),
("dwUnionChoice", ctypes.wintypes.DWORD),
("u", WINTRUST_DATA_UNION),
("dwStateAction", ctypes.wintypes.DWORD),
("hWVTStateData", ctypes.wintypes.HANDLE),
("pwszURLReference", ctypes.wintypes.LPCWSTR),
("dwProvFlags", ctypes.wintypes.DWORD),
("dwUIContext", ctypes.wintypes.DWORD),
("pSignatureSettings", ctypes.wintypes.LPVOID)
]
class GUID(ctypes.Structure):
_fields_ = [
("Data1", ctypes.wintypes.DWORD),
("Data2", ctypes.wintypes.WORD),
("Data3", ctypes.wintypes.WORD),
("Data4", ctypes.c_ubyte * 8)
]
V2_GUID = GUID(0x00AAC56B, 0xCD44, 0x11D0, (ctypes.c_ubyte * 8)(0x8C, 0xC2, 0x00, 0xC0, 0x4F, 0xC2, 0x95, 0xEE))
####################################################################################################
class WinTrust:
@staticmethod
def verify(file_path):
if os.name != 'nt':
return 0
try:
wintrust = ctypes.windll.wintrust
wintrust.WinVerifyTrust.argtypes = [ctypes.wintypes.HWND, ctypes.POINTER(GUID), ctypes.wintypes.LPVOID]
wintrust.WinVerifyTrust.restype = ctypes.wintypes.LONG
fi = WINTRUST_FILE_INFO()
fi.cbStruct = ctypes.sizeof(WINTRUST_FILE_INFO)
fi.pcwszFilePath = os.path.abspath(file_path)
fi.hFile = None
fi.pgKnownSubject = None
wt_union = WINTRUST_DATA_UNION()
wt_union.pFile = ctypes.pointer(fi)
td = WINTRUST_DATA()
td.cbStruct = ctypes.sizeof(WINTRUST_DATA)
td.pPolicyCallbackData = None
td.pSIPClientData = None
td.dwUIChoice = 2
td.fdwRevocationChecks = 0
td.dwUnionChoice = 1
td.u = wt_union
td.dwStateAction = 0
td.hWVTStateData = None
td.pwszURLReference = None
td.dwProvFlags = 0
td.dwUIContext = 0
td.pSignatureSettings = None
return 1 if wintrust.WinVerifyTrust(None, ctypes.byref(V2_GUID), ctypes.byref(td)) == 0 else 0
except Exception:
return 0
####################################################################################################
class FeatureExtractor:
@staticmethod
def _safe_float(val):
try:
f = float(val)
return f if not (math.isinf(f) or math.isnan(f)) else 0.0
except Exception:
return 0.0
@staticmethod
def _calc_entropy(data):
if not data: return 0.0
import numpy as np
arr = np.frombuffer(data, dtype=np.uint8)
counts = np.bincount(arr, minlength=256)
probs = counts[counts > 0] / len(arr)
return float(-np.sum(probs * np.log2(probs)))
@classmethod
def _extract_overlay_features(cls, pe, fsize):
overlay_offset = pe.get_overlay_data_start_offset()
if not overlay_offset or overlay_offset >= fsize:
return {"HasOverlay": 0.0, "OverlaySize": 0.0, "OverlayRatio": 0.0, "OverlayEntropy": 0.0}
overlay_data = pe.get_overlay()
if not overlay_data:
return {"HasOverlay": 0.0, "OverlaySize": 0.0, "OverlayRatio": 0.0, "OverlayEntropy": 0.0}
sz = len(overlay_data)
return {
"HasOverlay": 1.0,
"OverlaySize": float(sz),
"OverlayRatio": float(sz) / float(fsize),
"OverlayEntropy": cls._calc_entropy(overlay_data)
}
@classmethod
def _extract_rich_header(cls, pe):
if not hasattr(pe, 'RICH_HEADER') or not pe.RICH_HEADER:
return {"HasRichHeader": 0.0, "RichHeaderCount": 0.0}
return {
"HasRichHeader": 1.0,
"RichHeaderCount": float(len(pe.RICH_HEADER.values) // 2) if hasattr(pe.RICH_HEADER, 'values') else 0.0
}
@classmethod
def _extract_ep_anomalies(cls, pe):
if not hasattr(pe, 'OPTIONAL_HEADER') or not hasattr(pe, 'sections') or not pe.sections:
return {"EntryPointSectionIndex": -1.0, "EntryPointInExecutable": 0.0, "EntryPointInLastSection": 0.0}
ep = pe.OPTIONAL_HEADER.AddressOfEntryPoint
ep_section_idx = -1
ep_in_exec = 0.0
for idx, sec in enumerate(pe.sections):
if sec.VirtualAddress <= ep < (sec.VirtualAddress + sec.Misc_VirtualSize):
ep_section_idx = idx
if sec.Characteristics & 0x20000000:
ep_in_exec = 1.0
break
return {
"EntryPointSectionIndex": float(ep_section_idx),
"EntryPointInExecutable": ep_in_exec,
"EntryPointInLastSection": 1.0 if ep_section_idx == len(pe.sections) - 1 else 0.0
}
@classmethod
def _extract_advanced_resources(cls, pe):
res_data = {
"ResourceMaxEntropy": 0.0,
"ResourceMinEntropy": 0.0,
"ResourceMeanEntropy": 0.0,
"ResourceLangCount": 0.0,
"ResourceRCDataCount": 0.0
}
if not hasattr(pe, 'DIRECTORY_ENTRY_RESOURCE'):
return res_data
entropies = []
langs = set()
rcdata_count = 0
for entry_type in pe.DIRECTORY_ENTRY_RESOURCE.entries:
if hasattr(entry_type, 'id') and entry_type.id == 10:
rcdata_count += len(getattr(entry_type.directory, 'entries', []))
if not hasattr(entry_type, 'directory'):
continue
for entry_id in entry_type.directory.entries:
if not hasattr(entry_id, 'directory'):
continue
for entry_lang in entry_id.directory.entries:
if hasattr(entry_lang, 'id'):
langs.add(entry_lang.id)
if hasattr(entry_lang, 'data'):
try:
data = pe.get_data(entry_lang.data.struct.OffsetToData, entry_lang.data.struct.Size)
entropies.append(cls._calc_entropy(data))
except Exception:
continue
res_data["ResourceLangCount"] = float(len(langs))
res_data["ResourceRCDataCount"] = float(rcdata_count)
if entropies:
res_data["ResourceMaxEntropy"] = max(entropies)
res_data["ResourceMinEntropy"] = min(entropies)
res_data["ResourceMeanEntropy"] = sum(entropies) / len(entropies)
return res_data
@classmethod
def _extract_load_config(cls, pe):
cfg = {"HasLoadConfig": 0.0, "HasCFG": 0.0, "HasSEHTable": 0.0}
if hasattr(pe, 'DIRECTORY_ENTRY_LOAD_CONFIG'):
cfg["HasLoadConfig"] = 1.0
struct = pe.DIRECTORY_ENTRY_LOAD_CONFIG.struct
if getattr(struct, 'GuardCFFunctionTable', 0) != 0:
cfg["HasCFG"] = 1.0
if getattr(struct, 'SEHandlerTable', 0) != 0:
cfg["HasSEHTable"] = 1.0
return cfg
@classmethod
def extract(cls, file_path):
pe = None
try:
fsize = os.path.getsize(file_path)
if fsize == 0 or fsize > MAX_FILE_SIZE:
return None
with open(file_path, "rb") as f:
file_bytes = f.read()
base, dlls, apis = {}, set(), set()
pe = pefile.PE(data=file_bytes, fast_load=True)
base['TrustSigned'] = float(WinTrust.verify(file_path))
base['FileEntropy'] = cls._calc_entropy(file_bytes)
base['FileSize'] = float(fsize)
fh = pe.FILE_HEADER
base['Machine'] = getattr(fh, 'Machine', 0)
base['NumberOfSections'] = getattr(fh, 'NumberOfSections', 0)
base['TimeDateStamp'] = getattr(fh, 'TimeDateStamp', 0)
base['PointerToSymbolTable'] = getattr(fh, 'PointerToSymbolTable', 0)
base['NumberOfSymbols'] = getattr(fh, 'NumberOfSymbols', 0)
base['SizeOfOptionalHeader'] = getattr(fh, 'SizeOfOptionalHeader', 0)
base['Characteristics'] = getattr(fh, 'Characteristics', 0)
curr_ts = datetime.datetime.utcnow().timestamp()
base['HasInvalidTimestamp'] = 1.0 if (base['TimeDateStamp'] < 631152000 or base['TimeDateStamp'] > curr_ts + 2592000) else 0.0
base['FileTimeException'] = 1.0 if base['TimeDateStamp'] == 0 else 0.0
base['Is64Bit'] = 1.0 if base['Machine'] in (0x8664, 0xAA64, 0x0200) else 0.0
base['IsExe'] = 1.0 if pe.is_exe() else 0.0
base['IsDll'] = 1.0 if pe.is_dll() else 0.0
base['ExceptionCount'] = 0.0
if hasattr(pe, 'OPTIONAL_HEADER'):
op = pe.OPTIONAL_HEADER
fields = ['Magic', 'MajorLinkerVersion', 'MinorLinkerVersion', 'SizeOfCode', 'SizeOfInitializedData', 'SizeOfUninitializedData', 'AddressOfEntryPoint', 'BaseOfCode', 'ImageBase', 'SectionAlignment', 'FileAlignment', 'MajorOperatingSystemVersion', 'MinorOperatingSystemVersion', 'MajorImageVersion', 'MinorImageVersion', 'MajorSubsystemVersion', 'MinorSubsystemVersion', 'SizeOfImage', 'SizeOfHeaders', 'CheckSum', 'Subsystem', 'DllCharacteristics', 'SizeOfStackReserve', 'SizeOfStackCommit', 'SizeOfHeapReserve', 'SizeOfHeapCommit', 'LoaderFlags', 'NumberOfRvaAndSizes']
for f in fields: base[f] = getattr(op, f, 0)
base['IsDriver'] = 1.0 if base.get('Subsystem') == 1 else 0.0
if hasattr(op, 'DATA_DIRECTORY'):
for i, directory in enumerate(op.DATA_DIRECTORY):
base[f'DataDirectory_{i}_Size'] = directory.Size
base[f'DataDirectory_{i}_VA'] = directory.VirtualAddress
exc_idx = pefile.DIRECTORY_ENTRY.get('IMAGE_DIRECTORY_ENTRY_EXCEPTION', 3)
if len(op.DATA_DIRECTORY) > exc_idx and op.DATA_DIRECTORY[exc_idx].Size > 0:
base['ExceptionCount'] = op.DATA_DIRECTORY[exc_idx].Size // 12 if base['Machine'] in (0x8664, 0xAA64) else 0.0
char_flags = [0x00000020, 0x00000040, 0x00000080, 0x02000000, 0x20000000, 0x40000000, 0x80000000]
for flag in char_flags:
base[f'Char_{flag:08X}_Count'] = 0.0
base[f'Char_{flag:08X}_MeanEntropy'] = 0.0
if hasattr(pe, 'sections'):
base['SectionCount'] = len(pe.sections)
entropies, raw_sizes, v_sizes = [], [], []
exec_sec, write_sec, read_sec, sec_exc = 0, 0, 0, 0
for section in pe.sections:
try:
s_data = section.get_data()
s_entropy = cls._calc_entropy(s_data)
except Exception:
s_entropy = 0.0
entropies.append(s_entropy)
raw_sizes.append(section.SizeOfRawData)
v_sizes.append(section.Misc_VirtualSize)
if section.Characteristics & 0x20000000: exec_sec += 1
if section.Characteristics & 0x80000000: write_sec += 1
if section.Characteristics & 0x40000000: read_sec += 1
if section.SizeOfRawData + section.PointerToRawData > fsize: sec_exc = 1
for flag in char_flags:
if section.Characteristics & flag:
base[f'Char_{flag:08X}_Count'] += 1.0
base[f'Char_{flag:08X}_MeanEntropy'] += s_entropy
base['SectionMaxEntropy'] = max(entropies) if entropies else 0.0
base['SectionMinEntropy'] = min(entropies) if entropies else 0.0
base['SectionMeanEntropy'] = sum(entropies) / len(entropies) if entropies else 0.0
base['SectionMaxRawSize'] = max(raw_sizes) if raw_sizes else 0.0
base['SectionMinRawSize'] = min(raw_sizes) if raw_sizes else 0.0
base['SectionMeanRawSize'] = sum(raw_sizes) / len(raw_sizes) if raw_sizes else 0.0
base['SectionMaxVSize'] = max(v_sizes) if v_sizes else 0.0
base['SectionMinVSize'] = min(v_sizes) if v_sizes else 0.0
base['SectionMeanVSize'] = sum(v_sizes) / len(v_sizes) if v_sizes else 0.0
base['ExecutableSections'] = exec_sec
base['WritableSections'] = write_sec
base['ReadableSections'] = read_sec
base['SectionException'] = float(sec_exc)
for flag in char_flags:
if base[f'Char_{flag:08X}_Count'] > 0:
base[f'Char_{flag:08X}_MeanEntropy'] = base[f'Char_{flag:08X}_MeanEntropy'] / base[f'Char_{flag:08X}_Count']
string_keys = ['FileDescription', 'FileVersion', 'ProductName', 'ProductVersion', 'CompanyName', 'LegalCopyright', 'Comments', 'InternalName', 'LegalTrademarks', 'SpecialBuild', 'PrivateBuild']
for key in string_keys:
base[f'{key}Length'] = 0.0
if hasattr(pe, 'FileInfo'):
for fileinfo_list in pe.FileInfo:
for fileinfo in fileinfo_list:
if getattr(fileinfo, 'name', '') in ('StringFileInfo', b'StringFileInfo'):
for st in getattr(fileinfo, 'StringTable', []):
for key, val in st.entries.items():
try:
k = key.decode('utf-8', 'ignore') if isinstance(key, bytes) else str(key)
if k in string_keys:
v = val.decode('utf-8', 'ignore') if isinstance(val, bytes) else str(val)
base[f'{k}Length'] = float(len(v))
except Exception:
continue
try:
pe.parse_data_directories(directories=[
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_IMPORT'],
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_EXPORT'],
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_RESOURCE'],
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_DEBUG'],
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_TLS'],
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG']
])
except Exception: pass
if hasattr(pe, 'DIRECTORY_ENTRY_TLS') and hasattr(pe.DIRECTORY_ENTRY_TLS, 'struct'):
base['HasTlsCallbacks'] = 1.0 if getattr(pe.DIRECTORY_ENTRY_TLS.struct, 'AddressOfCallBacks', 0) != 0 else 0.0
if hasattr(pe, 'VS_FIXEDFILEINFO') and len(pe.VS_FIXEDFILEINFO) > 0:
flags = getattr(pe.VS_FIXEDFILEINFO[0], 'FileFlags', 0)
base['IsDebug'] = 1.0 if flags & 0x1 else 0.0
base['IsPreRelease'] = 1.0 if flags & 0x2 else 0.0
base['IsPatched'] = 1.0 if flags & 0x4 else 0.0
base['IsPrivateBuild'] = 1.0 if flags & 0x8 else 0.0
base['IsSpecialBuild'] = 1.0 if flags & 0x20 else 0.0
if hasattr(pe, 'DIRECTORY_ENTRY_IMPORT'):
base['ImportCount'] = len(pe.DIRECTORY_ENTRY_IMPORT)
func_count = 0
for entry in pe.DIRECTORY_ENTRY_IMPORT:
if getattr(entry, 'dll', None):
try: dlls.add(entry.dll.decode('ascii', 'ignore').lower())
except Exception: pass
for imp in getattr(entry, 'imports', []):
func_count += 1
if getattr(imp, 'name', None):
try: apis.add(imp.name.decode('ascii', 'ignore'))
except Exception: pass
base['ImportFunctionCount'] = func_count
base['ExportCount'] = len(pe.DIRECTORY_ENTRY_EXPORT.symbols) if (hasattr(pe, 'DIRECTORY_ENTRY_EXPORT') and hasattr(pe.DIRECTORY_ENTRY_EXPORT, 'symbols')) else 0.0
if hasattr(pe, 'DIRECTORY_ENTRY_RESOURCE'):
icon_count = 0
for entry in pe.DIRECTORY_ENTRY_RESOURCE.entries:
if getattr(entry, 'id', None) == 3 and hasattr(entry, 'directory'):
icon_count += len(getattr(entry.directory, 'entries', []))
base['IconCount'] = icon_count
else:
base['IconCount'] = 0.0
base['DebugCount'] = len(pe.DIRECTORY_ENTRY_DEBUG) if hasattr(pe, 'DIRECTORY_ENTRY_DEBUG') else 0.0
base.update(cls._extract_overlay_features(pe, fsize))
base.update(cls._extract_rich_header(pe))
base.update(cls._extract_ep_anomalies(pe))
base.update(cls._extract_advanced_resources(pe))
base.update(cls._extract_load_config(pe))
for k in base: base[k] = cls._safe_float(base[k])
return {"Base": base, "DLLs": list(dlls), "APIs": list(apis)}
except Exception: return None
finally:
if pe: pe.close()
####################################################################################################
class ModelPredictor:
def __init__(self, model_path, feature_path):
self.model_features = self._load_features(feature_path)
self.sess = ort.InferenceSession(model_path, providers=['CPUExecutionProvider'])
self.input_name = self.sess.get_inputs()[0].name
expected_dim = self.sess.get_inputs()[0].shape[1]
current_dim = len(self.model_features)
if current_dim != expected_dim:
raise ValueError(f"Dimension mismatch! Model expects {expected_dim} features, but feature file lists {current_dim}.")
def _load_features(self, path):
if not os.path.exists(path):
raise FileNotFoundError(f"Feature file not found: {path}")
with open(path, 'r') as f:
return json.load(f)
def predict(self, raw_data):
vec = np.zeros((1, len(self.model_features)), dtype=np.float32)
base = raw_data.get('Base', {})
dlls = set(raw_data.get('DLLs', []))
apis = set(raw_data.get('APIs', []))
for i, feat in enumerate(self.model_features):
if feat.startswith('Dll_'):
if feat[4:] in dlls:
vec[0, i] = 1.0
elif feat.startswith('Api_'):
if feat[4:] in apis:
vec[0, i] = 1.0
else:
vec[0, i] = base.get(feat, 0.0)
outputs = self.sess.run(None, {self.input_name: vec})
if len(outputs) > 1:
result = outputs[1]
if isinstance(result, list) and len(result) > 0:
prob_dict = result[0]
if hasattr(prob_dict, 'get'):
return float(prob_dict.get(1, prob_dict.get('1', 0.0)))
elif isinstance(result, np.ndarray):
if result.ndim == 2 and result.shape[1] > 1:
return float(result[0][1])
return 0.0
####################################################################################################
def scan_target(target, predictor):
files = []
if os.path.isfile(target):
files.append(target)
elif os.path.isdir(target):
for r, _, fs in os.walk(target):
for f in fs:
if os.path.splitext(f)[1].lower() in TARGET_EXTENSIONS:
files.append(os.path.join(r, f))
if not files:
print("[-] No valid PE files found.")
return
print(f"\n[*] Scanning {len(files)} files...\n")
print(f"{'RESULT':<10} | {'PROB':<8} | {'FILE'}")
print("-" * 80)
safe_count = 0
mal_count = 0
for fpath in files:
try:
data = FeatureExtractor.extract(fpath)
if not data:
print(f"{'ERROR':<10} | {'----':<8} | {fpath}")
continue
prob = predictor.predict(data)
is_malware = prob > 0.5
label = "MALWARE" if is_malware else "SAFE"
if is_malware:
mal_count += 1
else:
safe_count += 1
print(f"{label:<10} | {prob:.4f} | {fpath}")
except Exception as e:
print(f"{'FAIL':<10} | {'----':<8} | {fpath} ({str(e)})")
print("-" * 80)
print(f"[*] Summary: Safe={safe_count}, Malware={mal_count}, Total={len(files)}")
####################################################################################################
if __name__ == "__main__":
print("\n-------------------------- PE Malware Predictor v4.0 --------------------------\n")
print(f"[*] © 2020-2026 87owo (PYAS Security)")
print(f"[*] Loading model features and weights...")
base_dir = os.path.dirname(sys.executable) if getattr(sys, 'frozen', False) else os.path.dirname(os.path.abspath(__file__))
model_path = os.path.join(base_dir, MODEL_FILE)
feature_path = os.path.join(base_dir, FEATURE_FILE)
try:
predictor = ModelPredictor(model_path, feature_path)
except Exception as e:
print(f"[-] Critical Error: {e}")
sys.exit(1)
if len(sys.argv) > 1:
for path in sys.argv[1:]:
target = path.strip('"').strip("'")
if os.path.exists(target):
print()
print("-" * 80)
scan_target(target, predictor)
else:
print(f"[-] Path does not exist: {target}")
else:
while True:
try:
print()
print("-" * 80)
path = input("\n[?] Enter File or Folder Path (or 'q' to exit): ").strip().strip('"').strip("'")
if path.lower() in ['q', 'exit']: break
if not os.path.exists(path):
print("[-] Path does not exist.")
continue
scan_target(path, predictor)
except KeyboardInterrupt:
break
except Exception as e:
print(f"[-] Error: {e}")
+4 -6
View File
@@ -34,9 +34,7 @@ LGBM_PARAMS = {
'seed': RANDOM_SEED,
'n_jobs': -1,
'max_depth': -1,
'min_data_in_leaf': 20,
'lambda_l1': 0.01,
'lambda_l2': 0.01,
'min_data_in_leaf': 50,
}
####################################################################################################
@@ -62,8 +60,8 @@ def analyze_schema(jsonl_path):
continue
base_schema = sorted([k for k in base_keys if k.lower().strip() not in EXCLUDE_FEATURES])
dll_schema = sorted([f"Dll_{k}" for k, v in dll_counts.items() if v >= 100])
api_schema = sorted([f"Api_{k}" for k, v in api_counts.items() if v >= 100])
dll_schema = sorted([f"Dll_{k}" for k, v in dll_counts.items() if v >= 1000])
api_schema = sorted([f"Api_{k}" for k, v in api_counts.items() if v >= 1000])
return base_schema, dll_schema, api_schema, num_lines
@@ -133,7 +131,7 @@ def train_process(X, y, feature_names):
n_neg = (y_train == 0).sum()
base_weight = n_neg / n_pos if n_pos > 0 else 1.0
weight_ratio_target = 0.005
weight_ratio_target = 0.01
final_pos_weight = base_weight * weight_ratio_target
print(f"[*] Sample distribution: Safe={n_neg}, Malware={n_pos}")
+4 -6
View File
@@ -26,7 +26,7 @@ LGBM_PARAMS = {
'objective': 'binary',
'metric': ['binary_logloss', 'auc'],
'boosting_type': 'gbdt',
'num_leaves': 64,
'num_leaves': 128,
'feature_fraction': 0.8,
'bagging_fraction': 1.0,
'bagging_freq': 5,
@@ -34,9 +34,7 @@ LGBM_PARAMS = {
'seed': RANDOM_SEED,
'n_jobs': -1,
'max_depth': -1,
'min_data_in_leaf': 20,
'lambda_l1': 0.01,
'lambda_l2': 0.01,
'min_data_in_leaf': 50,
}
####################################################################################################
@@ -62,8 +60,8 @@ def analyze_schema(jsonl_path):
continue
base_schema = sorted([k for k in base_keys if k.lower().strip() not in EXCLUDE_FEATURES])
dll_schema = sorted([f"Dll_{k}" for k, v in dll_counts.items() if v >= 100])
api_schema = sorted([f"Api_{k}" for k, v in api_counts.items() if v >= 100])
dll_schema = sorted([f"Dll_{k}" for k, v in dll_counts.items() if v >= 1000])
api_schema = sorted([f"Api_{k}" for k, v in api_counts.items() if v >= 1000])
return base_schema, dll_schema, api_schema, num_lines
+9 -2
View File
@@ -1,3 +1,9 @@
['dragenter', 'dragover', 'dragleave', 'drop'].forEach(eventName => {
document.addEventListener(eventName, e => {
e.preventDefault();
});
});
document.addEventListener('DOMContentLoaded', () => {
const { dict, langMap } = window.AppI18n;
@@ -624,7 +630,7 @@ document.addEventListener('DOMContentLoaded', () => {
}
};
window.triggerContextScan = (path) => {
window.triggerContextScan = (targets) => {
if (appState.scanning) return;
switchPage('scan_window');
if (window.pywebview) {
@@ -642,7 +648,8 @@ document.addEventListener('DOMContentLoaded', () => {
if (title) { title.setAttribute('data-i18n', 'status_scanning'); title.textContent = getMsg('status_scanning'); }
if (text) { text.setAttribute('data-i18n', 'msg_init'); text.removeAttribute('data-dynamic-msg'); text.textContent = getMsg('msg_init'); }
window.pywebview.api.start_scan([path]);
const paths = Array.isArray(targets) ? targets : [targets];
window.pywebview.api.start_scan(paths);
}
};
+22 -1
View File
@@ -311,7 +311,7 @@ class WindowAPI:
self.lock_net = threading.RLock()
self.pyas_default = {
"version": "3.5.4",
"version": "3.5.5",
"api_host": "https://pyas-security.com/",
"api_key": "fBRZxYS1UxykM-qzNOlKOEl63WILzlvgNMn6QfsG6FXCAAIktCrOPTAfY5_hEyuZ",
"suffix": [".exe", ".dll", ".sys", ".ocx", ".scr", ".efi", ".acm", ".ax", ".cpl", ".drv", ".com", ".mui", ".pyd"],
@@ -896,6 +896,18 @@ class WindowAPI:
if self._window:
self._window.evaluate_js(f"if(window.triggerContextScan) window.triggerContextScan({json.dumps(target.replace(os.sep, '/'))});")
def on_drop(self, e):
def _process_drop():
try:
files = e.get('dataTransfer', {}).get('files', [])
paths = [f.get('pywebviewFullPath') for f in files if f.get('pywebviewFullPath')]
if paths and self._window:
self._window.evaluate_js(f"if(window.triggerContextScan) window.triggerContextScan({json.dumps(paths)});")
except Exception as ex:
self.write_log("WARN", "on_drop", detail=str(ex), success=False)
threading.Thread(target=_process_drop, daemon=True).start()
def select_files(self):
if self._window:
result = self._window.create_file_dialog(webview.FileDialog.OPEN, allow_multiple=True)
@@ -2719,4 +2731,13 @@ if __name__ == "__main__":
js_api.set_window(window)
js_api.show_tray()
def bind_dnd():
try:
from webview.dom import DOMEventHandler
window.dom.document.events.drop += DOMEventHandler(js_api.on_drop, True, True)
except Exception:
pass
window.events.loaded += bind_dnd
webview.start()
+110
View File
@@ -208,6 +208,110 @@ class pe_scanner:
probs = counts[counts > 0] / len(arr)
return float(-numpy.sum(probs * numpy.log2(probs)))
def _extract_overlay_features(self, pe, fsize):
overlay_offset = pe.get_overlay_data_start_offset()
if not overlay_offset or overlay_offset >= fsize:
return {"HasOverlay": 0.0, "OverlaySize": 0.0, "OverlayRatio": 0.0, "OverlayEntropy": 0.0}
overlay_data = pe.get_overlay()
if not overlay_data:
return {"HasOverlay": 0.0, "OverlaySize": 0.0, "OverlayRatio": 0.0, "OverlayEntropy": 0.0}
sz = len(overlay_data)
return {
"HasOverlay": 1.0,
"OverlaySize": float(sz),
"OverlayRatio": float(sz) / float(fsize),
"OverlayEntropy": self._calc_entropy(overlay_data)
}
def _extract_rich_header(self, pe):
if not hasattr(pe, 'RICH_HEADER') or not pe.RICH_HEADER:
return {"HasRichHeader": 0.0, "RichHeaderCount": 0.0}
return {
"HasRichHeader": 1.0,
"RichHeaderCount": float(len(pe.RICH_HEADER.values) // 2) if hasattr(pe.RICH_HEADER, 'values') else 0.0
}
def _extract_ep_anomalies(self, pe):
if not hasattr(pe, 'OPTIONAL_HEADER') or not hasattr(pe, 'sections') or not pe.sections:
return {"EntryPointSectionIndex": -1.0, "EntryPointInExecutable": 0.0, "EntryPointInLastSection": 0.0}
ep = pe.OPTIONAL_HEADER.AddressOfEntryPoint
ep_section_idx = -1
ep_in_exec = 0.0
for idx, sec in enumerate(pe.sections):
if sec.VirtualAddress <= ep < (sec.VirtualAddress + sec.Misc_VirtualSize):
ep_section_idx = idx
if sec.Characteristics & 0x20000000:
ep_in_exec = 1.0
break
return {
"EntryPointSectionIndex": float(ep_section_idx),
"EntryPointInExecutable": ep_in_exec,
"EntryPointInLastSection": 1.0 if ep_section_idx == len(pe.sections) - 1 else 0.0
}
def _extract_advanced_resources(self, pe):
res_data = {
"ResourceMaxEntropy": 0.0,
"ResourceMinEntropy": 0.0,
"ResourceMeanEntropy": 0.0,
"ResourceLangCount": 0.0,
"ResourceRCDataCount": 0.0
}
if not hasattr(pe, 'DIRECTORY_ENTRY_RESOURCE'):
return res_data
entropies = []
langs = set()
rcdata_count = 0
for entry_type in pe.DIRECTORY_ENTRY_RESOURCE.entries:
if hasattr(entry_type, 'id') and entry_type.id == 10:
rcdata_count += len(getattr(entry_type.directory, 'entries', []))
if not hasattr(entry_type, 'directory'):
continue
for entry_id in entry_type.directory.entries:
if not hasattr(entry_id, 'directory'):
continue
for entry_lang in entry_id.directory.entries:
if hasattr(entry_lang, 'id'):
langs.add(entry_lang.id)
if hasattr(entry_lang, 'data'):
try:
data = pe.get_data(entry_lang.data.struct.OffsetToData, entry_lang.data.struct.Size)
entropies.append(self._calc_entropy(data))
except Exception:
continue
res_data["ResourceLangCount"] = float(len(langs))
res_data["ResourceRCDataCount"] = float(rcdata_count)
if entropies:
res_data["ResourceMaxEntropy"] = max(entropies)
res_data["ResourceMinEntropy"] = min(entropies)
res_data["ResourceMeanEntropy"] = sum(entropies) / len(entropies)
return res_data
def _extract_load_config(self, pe):
cfg = {"HasLoadConfig": 0.0, "HasCFG": 0.0, "HasSEHTable": 0.0}
if hasattr(pe, 'DIRECTORY_ENTRY_LOAD_CONFIG'):
cfg["HasLoadConfig"] = 1.0
struct = pe.DIRECTORY_ENTRY_LOAD_CONFIG.struct
if getattr(struct, 'GuardCFFunctionTable', 0) != 0:
cfg["HasCFG"] = 1.0
if getattr(struct, 'SEHandlerTable', 0) != 0:
cfg["HasSEHTable"] = 1.0
return cfg
def extract_features(self, file_path):
pe = None
try:
@@ -406,6 +510,12 @@ class pe_scanner:
else:
base['DebugCount'] = 0.0
base.update(self._extract_overlay_features(pe, fsize))
base.update(self._extract_rich_header(pe))
base.update(self._extract_ep_anomalies(pe))
base.update(self._extract_advanced_resources(pe))
base.update(self._extract_load_config(pe))
for k in base:
base[k] = self._safe_float(base[k])
+1 -1
View File
@@ -2,7 +2,7 @@ import pyinstaller_versionfile
pyinstaller_versionfile.create_versionfile(
output_file="versionfile.txt",
version='3.5.4.0',
version='3.5.5.0',
company_name="PYAS Security",
file_description="PYAS Security Antivirus",
internal_name="PYAS",
+3 -2
View File
@@ -77,7 +77,6 @@
"*\\FirmwareBootDevice",
"*\\BootDriverFlags",
"*\\SystemStartOptions",
"*\\CrashDumpEnabled",
"*\\DisableAutomaticRestartOnFailure",
"*\\SystemBiosVersion",
"*\\NoTheme",
@@ -129,9 +128,11 @@
"*\\360Safe.exe",
"*\\bilibili\\bilibili.exe",
"*\\Kingsoft\\WPS Office\\ksolaunch.exe",
"*\\Kingsoft\\WPS Office\\*\\wps.exe",
"*\\PC4399_WPFLauncher.exe",
"*\\bin\\APlayer.exe",
"*\\Kingsoft\\WPS Office\\ksolaunch.exe",
"*\\Neverness To Everness\\NTELauncher.exe",
"*\\Application\\AndrowsLauncher.exe",
],