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No files matched your search
@@ -1,16 +0,0 @@
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FROM python:3.10-slim
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RUN apt-get update && apt-get install -y \
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build-essential \
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libfuzzy-dev \
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git \
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&& rm -rf /var/lib/apt/lists/*
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WORKDIR /app
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COPY requirements.txt .
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RUN pip install --no-cache-dir -r requirements.txt
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COPY . .
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CMD ["python", "-u", "predict_onnx_linux.py"]
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@@ -1,211 +0,0 @@
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import os, time, uuid, logging, requests, hashlib
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from pathlib import Path
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from typing import Optional, List, Dict, Any
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####################################################################################################
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class PYAS_Client:
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def __init__(self, api_key: str, host: str, timeout: int = 30):
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self.base_url = host.rstrip('/')
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self.timeout = timeout
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self.logger = logging.getLogger("PYAS_API")
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self.session = requests.Session()
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self.session.headers.update({"X-API-Key": api_key, "User-Agent": "PYAS-API/1.1"})
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self.logger.info(f"Initialized PYAS API Client targeting {self.base_url}")
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def _request(self, method: str, endpoint: str, **kwargs) -> Optional[requests.Response]:
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self.logger.debug(f"Request: {method} {endpoint}")
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try:
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r = self.session.request(method, f"{self.base_url}{endpoint}", timeout=self.timeout, **kwargs)
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if r.status_code == 200:
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return r
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error_map = {401: "API Key invalid", 402: "Insufficient points", 404: "Not found", 500: "Server Error"}
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self.logger.error(f"[{endpoint}] Failed: {error_map.get(r.status_code, f'HTTP {r.status_code}')}")
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except Exception as e:
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self.logger.error(f"Connection error: {e}")
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return None
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####################################################################################################
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def _calculate_sha256(self, path: Path) -> str:
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self.logger.debug(f"Calculating SHA256 for {path}")
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sha256_hash = hashlib.sha256()
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with open(path, "rb") as f:
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for byte_block in iter(lambda: f.read(1048576), b""):
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sha256_hash.update(byte_block)
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return sha256_hash.hexdigest()
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def upload_file(self, file_path: str, chunk_size: int = 5242880) -> Optional[str]:
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path = Path(file_path)
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if not path.exists():
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self.logger.error(f"File not found: {file_path}")
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return None
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file_size = path.stat().st_size
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self.logger.info(f"Initiating upload for {path.name} ({file_size} bytes)")
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if file_size > 536870912:
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self.logger.error(f"File size exceeds 512MB limit: {file_size} bytes")
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return None
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local_sha256 = self._calculate_sha256(path)
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status_req = self._request("GET", f"/api/processing_status/{local_sha256}")
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if status_req and status_req.json().get('status') in ['done', 'processing', 'queued']:
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self.logger.info(f"File already exists or processing on server: {local_sha256}")
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return local_sha256
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if file_size > chunk_size:
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return self._upload_chunked(path, chunk_size, file_size)
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return self._upload_standard(path)
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####################################################################################################
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def _upload_standard(self, path: Path, max_retries: int = 3) -> Optional[str]:
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self.logger.info(f"Starting standard upload for {path.name}")
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with open(path, 'rb') as f:
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file_data = f.read()
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for attempt in range(max_retries):
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r = self._request("POST", "/api/upload", files={'file': (path.name, file_data)})
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if r and 'url' in r.json():
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sha256 = r.json().get('url', '').split('/')[-1]
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self.logger.info(f"Standard upload successful: {sha256}")
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return sha256
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self.logger.warning(f"Standard upload retry {attempt + 1}/{max_retries}")
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time.sleep(1)
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self.logger.error("Standard upload failed after retries")
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return None
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def _upload_chunked(self, path: Path, chunk_size: int, file_size: int, max_retries: int = 3) -> Optional[str]:
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total_chunks = (file_size + chunk_size - 1) // chunk_size
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upload_id = uuid.uuid4().hex
|
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self.logger.info(f"Starting chunked upload for {path.name} (Chunks: {total_chunks}, ID: {upload_id})")
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with open(path, 'rb') as f:
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for i in range(total_chunks):
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chunk_data = f.read(chunk_size)
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headers = {"X-Chunk-Index": str(i), "X-Total-Chunks": str(total_chunks), "X-Upload-ID": upload_id}
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chunk_success = False
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for attempt in range(max_retries):
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r = self._request("POST", "/api/upload", files={'file': (path.name, chunk_data)}, headers=headers)
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if r:
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chunk_success = True
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self.logger.debug(f"Uploaded chunk {i + 1}/{total_chunks}")
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if i == total_chunks - 1 and 'url' in r.json():
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sha256 = r.json().get('url', '').split('/')[-1]
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self.logger.info(f"Chunked upload successful: {sha256}")
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return sha256
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break
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self.logger.warning(f"Chunk upload retry {attempt + 1}/{max_retries} for chunk {i}")
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time.sleep(1)
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if not chunk_success:
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self.logger.error(f"Failed to upload chunk {i + 1}/{total_chunks}")
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return None
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return None
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####################################################################################################
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def wait_for_analysis(self, sha256: str, interval: int = 5, max_retries: int = 10) -> bool:
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self.logger.info(f"Waiting for analysis completion: {sha256}")
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for attempt in range(max_retries):
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r = self._request("GET", f"/api/processing_status/{sha256}")
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if r:
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status = r.json().get('status')
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self.logger.debug(f"Analysis status: {status}")
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if status == 'done':
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self.logger.info(f"Analysis completed: {sha256}")
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return True
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||||
if status in ['missing', 'error', 'failed']:
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self.logger.error(f"Analysis failed with status: {status}")
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return False
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time.sleep(interval)
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self.logger.error(f"Analysis polling timed out for {sha256}")
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return False
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def get_report(self, sha256: str) -> Optional[Dict[str, Any]]:
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self.logger.info(f"Fetching report for {sha256}")
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r = self._request("GET", f"/api/report/{sha256}")
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if r:
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return r.json()
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self.logger.error(f"Failed to fetch report for {sha256}")
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return None
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####################################################################################################
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def rescan(self, sha256: str) -> bool:
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self.logger.info(f"Triggering rescan for {sha256}")
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r = self._request("POST", f"/api/rescan/{sha256}")
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success = bool(r and r.json().get('status') == 'success')
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if success:
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self.logger.info(f"Rescan triggered successfully for {sha256}")
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else:
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self.logger.error(f"Rescan failed for {sha256}")
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return success
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def search_files(self, query: str, limit: int = 50, page: int = 0, snapshot: Optional[str] = None) -> List[Dict[str, Any]]:
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self.logger.info(f"Searching files (Query: '{query}', Limit: {limit}, Page: {page})")
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payload = {'query': query, 'page': page}
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if snapshot:
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payload['snapshot'] = snapshot
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r = self._request("POST", "/api/search_more", data=payload)
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results = r.json().get('results', [])[:limit] if r else []
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self.logger.info(f"Search returned {len(results)} results")
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return results
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def download_sample(self, sha256: str, save_dir: str = "downloads") -> Optional[str]:
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self.logger.info(f"Downloading sample {sha256}")
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os.makedirs(save_dir, exist_ok=True)
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path = os.path.join(save_dir, f"{sha256}.zip")
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r = self._request("GET", f"/api/download/{sha256}", stream=True)
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if r:
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with open(path, 'wb') as f:
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for chunk in r.iter_content(8192):
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if chunk:
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f.write(chunk)
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self.logger.info(f"Sample downloaded successfully to {path}")
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return path
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self.logger.error(f"Failed to download sample {sha256}")
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return None
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####################################################################################################
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if __name__ == "__main__":
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logging.basicConfig(level=logging.DEBUG, format='[%(asctime)s] %(levelname)s [%(name)s] - %(message)s', datefmt='%Y-%m-%d %H:%M:%S')
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API_KEY = ""
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HOST = "https://pyas-security.com/"
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client = PYAS_Client(API_KEY, HOST)
|
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target_file = r"test.exe"
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sha = client.upload_file(target_file)
|
||||
if sha and client.wait_for_analysis(sha):
|
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report = client.get_report(sha)
|
||||
if report:
|
||||
meta = report.get('data', {}).get('metadata', {})
|
||||
logging.info(f"Result: {meta.get('label')} ({meta.get('score')}%)")
|
||||
|
||||
for item in client.search_files('date>=2020; ext=exe | dll', limit=3):
|
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client.download_sample(item['sha256'])
|
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@@ -1 +0,0 @@
|
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["FileEntropy", "SectionMeanEntropy", "IsExe", "IsDll", "IsDriver", "Is64Bit", "Machine", "Magic", "CheckSum", "ImageBase", "SizeOfImage", "SizeOfHeaders", "Characteristics", "DllCharacteristics", "Subsystem", "LoaderFlags", "MajorLinkerVersion", "MinorLinkerVersion", "SizeOfCode", "SizeOfInitializedData", "SizeOfUninitializedData", "AddressOfEntryPoint", "BaseOfCode", "SectionAlignment", "FileAlignment", "MajorOperatingSystemVersion", "MinorOperatingSystemVersion", "MajorImageVersion", "MinorImageVersion", "MajorSubsystemVersion", "MinorSubsystemVersion", "SizeOfStackReserve", "SizeOfStackCommit", "SizeOfHeapReserve", "SizeOfHeapCommit", "NumberOfSections", "NumberOfRvaAndSizes", "PointerToSymbolTable", "NumberOfSymbols", "SizeOfOptionalHeader", "TextSectionMaxEntropy", "TextSectionMeanEntropy", "TextSizeRatio", "DataSectionMaxEntropy", "DataSectionMeanEntropy", "DataSizeRatio", "RsrcSectionMaxEntropy", "RsrcSectionMeanEntropy", "RsrcSizeRatio", "SectionCount", "ExecutableSections", "WritableSections", "ReadableSections", "SectionException", "Char_00000020_Count", "Char_00000020_MeanEntropy", "Char_00000040_Count", "Char_00000040_MeanEntropy", "Char_00000080_Count", "Char_00000080_MeanEntropy", "Char_02000000_Count", "Char_02000000_MeanEntropy", "Char_20000000_Count", "Char_20000000_MeanEntropy", "Char_40000000_Count", "Char_40000000_MeanEntropy", "Char_80000000_Count", "Char_80000000_MeanEntropy", "IconCount", "ApiCount", "ExportCount", "DebugCount", "ExceptionCount", "ImportCount", "ImportFunctionCount", "FileDescriptionLength", "FileVersionLength", "ProductNameLength", "ProductVersionLength", "CompanyNameLength", "LegalCopyrightLength", "CommentsLength", "InternalNameLength", "LegalTrademarksLength", "SpecialBuildLength", "PrivateBuildLength", "TrustSigned", "IsDebug", "IsPatched", "IsPrivateBuild", "IsPreRelease", "IsSpecialBuild", "IsAdmin", "IsInstall", "HasTlsCallbacks", "HasInvalidTimestamp", "HasRelocationDirectory", "HasPacked", "FileTimeException", "Cat_AntiDebug", "Cat_Audio", "Cat_COM", "Cat_Camera", "Cat_Clipboard", "Cat_DataObfuscation", "Cat_DotNet", "Cat_Encryption", "Cat_FileIO", "Cat_Graphics", "Cat_Injection", "Cat_Input", "Cat_Keylogging", "Cat_Memory", "Cat_MultiThreading", "Cat_Native", "Cat_Network", "Cat_Privileges", "Cat_ProcessControl", "Cat_Registry", "Cat_Resource", "Cat_ScreenCapture", "Cat_Services", "Cat_Synchronization", "Cat_WindowControl", "Dll_advapi32_dll", "Dll_bcrypt_dll", "Dll_comctl32_dll", "Dll_crypt32_dll", "Dll_dbghelp_dll", "Dll_gdi32_dll", "Dll_hal_dll", "Dll_imagehlp_dll", "Dll_iphlpapi_dll", "Dll_kernel32_dll", "Dll_mscoree_dll", "Dll_netapi32_dll", "Dll_ntdll_dll", "Dll_ole32_dll", "Dll_oleaut32_dll", "Dll_psapi_dll", "Dll_shell32_dll", "Dll_shlwapi_dll", "Dll_urlmon_dll", "Dll_user32_dll", "Dll_vbscript_dll", "Dll_version_dll", "Dll_winhttp_dll", "Dll_wininet_dll", "Dll_winmm_dll", "Dll_ws2_32_dll", "Dll_wsock32_dll", "Dll_wtsapi32_dll", "Api_AdjustTokenPrivileges", "Api_Base64Decode", "Api_BitBlt", "Api_CallNextHookEx", "Api_CallWindowProcA", "Api_CapCreateCaptureWindowA", "Api_CapCreateCaptureWindowW", "Api_CharLowerA", "Api_CharUpperA", "Api_CheckRemoteDebuggerPresent", "Api_CloseClipboard", "Api_CloseHandle", "Api_CoCreateInstance", "Api_CoInitialize", "Api_CoUninitialize", "Api_CompareStringA", "Api_ConnectNamedPipe", "Api_ControlService", "Api_CopyFileA", "Api_CopyFileW", "Api_CreateCompatibleBitmap", "Api_CreateCompatibleDC", "Api_CreateDCA", "Api_CreateDCW", "Api_CreateEventA", "Api_CreateEventW", "Api_CreateFileA", "Api_CreateFileMappingA", "Api_CreateFileMappingW", "Api_CreateFileW", "Api_CreateMutexA", "Api_CreateMutexW", "Api_CreateProcessA", "Api_CreateProcessW", "Api_CreateRemoteThread", "Api_CreateServiceA", "Api_CreateServiceW", "Api_CreateThread", "Api_CreateThreadpoolWork", "Api_CreateWindowExA", "Api_CryptAcquireContextA", "Api_CryptAcquireContextW", "Api_CryptCreateHash", "Api_CryptDecodeObject", "Api_CryptDecrypt", "Api_CryptDeriveKey", "Api_CryptDestroyHash", "Api_CryptDestroyKey", "Api_CryptEncrypt", "Api_CryptExportKey", "Api_CryptGenKey", "Api_CryptHashData", "Api_CryptImportKey", "Api_CryptReleaseContext", "Api_D3D11CreateDevice", "Api_DecodePointer", "Api_DefWindowProcA", "Api_DeleteCriticalSection", "Api_DeleteDC", "Api_DeleteFileA", "Api_DeleteFileW", "Api_DeleteObject", "Api_DeleteService", "Api_DestroyWindow", "Api_DeviceIoControl", "Api_Direct3DCreate9", "Api_DispatchMessageA", "Api_DnsQuery_A", "Api_DnsQuery_W", "Api_EncodePointer", "Api_EnterCriticalSection", "Api_EnumChildWindows", "Api_EnumWindows", "Api_ExitProcess", "Api_ExitThread", "Api_FindClose", "Api_FindFirstFileA", "Api_FindNextFileA", "Api_FindResourceA", "Api_FindWindowA", "Api_FindWindowW", "Api_FlushFileBuffers", "Api_FreeEnvironmentStringsW", "Api_FreeLibrary", "Api_FreeResource", "Api_GdipSaveImageToFile", "Api_GetACP", "Api_GetActiveWindow", "Api_GetAsyncKeyState", "Api_GetCapture", "Api_GetClientRect", "Api_GetClipboardData", "Api_GetCommandLineA", "Api_Line truncated
|
||||
Binary file not shown.
@@ -1,611 +0,0 @@
|
||||
import os, sys, time, re, math, pefile, json, datetime, mmap
|
||||
import numpy as np
|
||||
import onnxruntime as ort
|
||||
from signify.authenticode.signed_file.pe import SignedPEFile
|
||||
from signify.authenticode.verification_result import AuthenticodeVerificationResult
|
||||
|
||||
####################################################################################################
|
||||
|
||||
MODEL_FILE = "model.onnx"
|
||||
FEATURE_FILE = "features.json"
|
||||
MAX_FILE_SIZE = 4 * 1024 * 1024 * 1024
|
||||
|
||||
####################################################################################################
|
||||
|
||||
class WinTrust:
|
||||
@staticmethod
|
||||
def verify(file_path):
|
||||
if not file_path or not os.path.exists(file_path) or os.path.getsize(file_path) == 0:
|
||||
return 0
|
||||
try:
|
||||
with open(file_path, 'rb') as f:
|
||||
with mmap.mmap(f.fileno(), 0, access=mmap.ACCESS_READ) as mm:
|
||||
pe = SignedPEFile(mm)
|
||||
if not pe.signatures:
|
||||
return 0
|
||||
|
||||
status, _ = pe.explain_verify()
|
||||
if status == AuthenticodeVerificationResult.OK:
|
||||
return 1
|
||||
except Exception:
|
||||
pass
|
||||
return 0
|
||||
|
||||
####################################################################################################
|
||||
|
||||
class FeatureExtractor:
|
||||
API_CAT_MAPPING = {
|
||||
'ProcessControl': {
|
||||
'CreateProcessA', 'CreateProcessW', 'WinExec', 'ShellExecuteA', 'ShellExecuteW',
|
||||
'ShellExecuteExW', 'ExitProcess', 'TerminateProcess', 'OpenProcess', 'GetExitCodeProcess',
|
||||
'SetThreadPriority', 'GetThreadPriority', 'GetCurrentProcess', 'GetCurrentProcessId',
|
||||
'GetModuleFileNameA', 'GetCommandLineA', 'GetModuleFileNameW', 'GetStartupInfoW'
|
||||
},
|
||||
'Injection': {
|
||||
'VirtualAlloc', 'VirtualAllocEx', 'VirtualProtect', 'VirtualProtectEx', 'WriteProcessMemory',
|
||||
'ReadProcessMemory', 'CreateRemoteThread', 'QueueUserAPC', 'SetThreadContext', 'GetThreadContext',
|
||||
'Wow64SetThreadContext', 'NtUnmapViewOfSection', 'ZwUnmapViewOfSection', 'RtlCreateUserThread',
|
||||
'SetWindowsHookExA', 'SetWindowsHookExW', 'UnhookWindowsHookEx', 'LoadLibraryA', 'LoadLibraryW',
|
||||
'LoadLibraryExA', 'LoadLibraryExW', 'GetProcAddress', 'GetModuleHandleA', 'GetModuleHandleW',
|
||||
'FreeLibrary', 'CreateFileMappingA', 'CreateFileMappingW', 'MapViewOfFile', 'UnmapViewOfSection',
|
||||
'VirtualFree', 'VirtualQuery'
|
||||
},
|
||||
'Synchronization': {
|
||||
'WaitForSingleObject', 'WaitForSingleObjectEx', 'WaitForMultipleObjects', 'WaitForMultipleObjectsEx',
|
||||
'CreateMutexA', 'CreateMutexW', 'OpenMutexW', 'ReleaseMutex', 'CreateEventA', 'CreateEventW',
|
||||
'OpenEventW', 'SetEvent', 'ResetEvent', 'EnterCriticalSection', 'LeaveCriticalSection',
|
||||
'InitializeCriticalSection', 'DeleteCriticalSection', 'Sleep', 'SleepEx',
|
||||
'InitializeCriticalSectionAndSpinCount', 'InterlockedDecrement', 'InterlockedIncrement',
|
||||
'InterlockedExchange', 'InterlockedCompareExchange', 'SetTimer', 'KillTimer'
|
||||
},
|
||||
'MultiThreading': {
|
||||
'CreateThread', 'ResumeThread', 'SuspendThread', 'ExitThread', 'TerminateThread',
|
||||
'GetCurrentThread', 'GetCurrentThreadId', 'TlsAlloc', 'TlsSetValue', 'TlsGetValue',
|
||||
'CreateThreadpoolWork', 'SubmitThreadpoolWork', 'TlsFree'
|
||||
},
|
||||
'Network': {
|
||||
'socket', 'connect', 'send', 'recv', 'bind', 'listen', 'accept', 'gethostbyname', 'getaddrinfo',
|
||||
'WSAStartup', 'WSACleanup', 'WSAIoctl', 'WSASocketA', 'WSASocketW', 'closesocket', 'htons',
|
||||
'InternetOpenA', 'InternetOpenW', 'InternetConnectA', 'InternetConnectW', 'InternetOpenUrlA',
|
||||
'InternetOpenUrlW', 'HttpOpenRequestA', 'HttpOpenRequestW', 'HttpSendRequestA', 'HttpSendRequestW',
|
||||
'InternetReadFile', 'URLDownloadToFileA', 'URLDownloadToFileW', 'DnsQuery_A', 'DnsQuery_W'
|
||||
},
|
||||
'Encryption': {
|
||||
'CryptAcquireContextA', 'CryptAcquireContextW', 'CryptCreateHash', 'CryptHashData',
|
||||
'CryptDeriveKey', 'CryptEncrypt', 'CryptDecrypt', 'CryptDestroyKey', 'CryptDestroyHash',
|
||||
'CryptReleaseContext', 'CryptGenKey', 'CryptImportKey', 'CryptExportKey'
|
||||
},
|
||||
'DataObfuscation': {
|
||||
'RtlDecompressBuffer', 'MultiByteToWideChar', 'WideCharToMultiByte', 'Base64Decode',
|
||||
'CryptDecodeObject', 'IsDBCSLeadByte', 'CharUpperA', 'CharLowerA',
|
||||
'GetStringTypeW', 'LCMapStringW', 'IsValidCodePage', 'DecodePointer', 'EncodePointer'
|
||||
},
|
||||
'FileIO': {
|
||||
'CreateFileA', 'CreateFileW', 'WriteFile', 'ReadFile', 'DeleteFileA', 'DeleteFileW',
|
||||
'CopyFileA', 'CopyFileW', 'MoveFileA', 'MoveFileW', 'FindFirstFileA', 'FindNextFileA',
|
||||
'GetTempPathA', 'GetTempPathW', 'GetTempFileNameA', 'GetTempFileNameW', 'SetFileAttributesA',
|
||||
'SetFileAttributesW', 'DeviceIoControl', 'SetFileTime', 'GetFileSize', 'GetFileSizeEx',
|
||||
'SetFilePointer', 'FlushFileBuffers', 'ConnectNamedPipe', 'PeekNamedPipe',
|
||||
'CloseHandle', 'GetFileType', 'SetStdHandle', 'SetFilePointerEx', 'FindClose',
|
||||
'SetHandleCount', 'SetEndOfFile', 'GetFullPathNameA', 'GetFileAttributesA'
|
||||
},
|
||||
'Registry': {
|
||||
'RegOpenKeyExA', 'RegOpenKeyExW', 'RegSetValueExA', 'RegSetValueExW',
|
||||
'RegCreateKeyExA', 'RegCreateKeyExW', 'RegDeleteKeyA', 'RegDeleteKeyW',
|
||||
'RegEnumValueA', 'RegEnumValueW', 'RegQueryValueExA', 'RegQueryValueExW',
|
||||
'RegDeleteValueA', 'RegDeleteValueW', 'RegCloseKey'
|
||||
},
|
||||
'Services': {
|
||||
'OpenSCManagerA', 'OpenSCManagerW', 'CreateServiceA', 'CreateServiceW',
|
||||
'StartServiceA', 'StartServiceW', 'ControlService', 'DeleteService'
|
||||
},
|
||||
'Privileges': {
|
||||
'AdjustTokenPrivileges', 'LookupPrivilegeValueA', 'LookupPrivilegeValueW',
|
||||
'OpenProcessToken', 'NetUserAdd', 'NetLocalGroupAddMembers', 'IsAdmin',
|
||||
'GetUserNameA', 'GetUserNameW'
|
||||
},
|
||||
'Native': {
|
||||
'RtlUnwind', 'RtlVirtualUnwind', 'RtlCaptureContext', 'RtlLookupFunctionEntry',
|
||||
'NtClose', 'NtQueryInformationProcess', 'RtlAllocateHeap', 'RtlFreeHeap',
|
||||
'GetSystemTimeAsFileTime', 'GetLocalTime', 'GlobalMemoryStatus',
|
||||
'GetVersionExA', 'GetVersionExW', 'GetComputerNameA', 'GetComputerNameW',
|
||||
'GetLastError', 'GetACP', 'RaiseException', 'SetLastError', 'GetEnvironmentStringsW',
|
||||
'FreeEnvironmentStringsW', 'GetLocaleInfoA', 'lstrlenA', 'GetVersion', 'GetSystemInfo',
|
||||
'CompareStringA'
|
||||
},
|
||||
'DotNet': {
|
||||
'_CorExeMain', '_CorDllMain'
|
||||
},
|
||||
'AntiDebug': {
|
||||
'IsDebuggerPresent', 'CheckRemoteDebuggerPresent', 'OutputDebugStringA', 'OutputDebugStringW',
|
||||
'GetTickCount', 'GetTickCount64', 'QueryPerformanceCounter', 'FindWindowA', 'FindWindowW',
|
||||
'EnumWindows', 'EnumChildWindows', 'GetWindowRect', 'GetClientRect', 'SetWindowDisplayAffinity',
|
||||
'UnhandledExceptionFilter', 'SetUnhandledExceptionFilter', 'IsProcessorFeaturePresent',
|
||||
'SetErrorMode', 'GetTimeZoneInformation', 'GetDriveTypeW', 'GetDiskFreeSpaceA'
|
||||
},
|
||||
'Keylogging': {
|
||||
'GetAsyncKeyState', 'GetKeyState', 'GetKeyboardState', 'MapVirtualKeyA', 'MapVirtualKeyW',
|
||||
'ToAscii', 'ToAsciiEx', 'ToUnicode', 'ToUnicodeEx', 'GetKeyNameTextA', 'GetForegroundWindow',
|
||||
'KeybdEvent', 'SendInput', 'MapVirtualKeyExA', 'MapVirtualKeyExW', 'CallNextHookEx'
|
||||
},
|
||||
'Input': {
|
||||
'GetCursorPos', 'SetCursorPos', 'MouseEvent', 'GetDoubleClickTime',
|
||||
'GetCapture', 'SetCapture'
|
||||
},
|
||||
'ScreenCapture': {
|
||||
'BitBlt', 'StretchBlt', 'GetDC', 'GetWindowDC', 'CreateCompatibleDC', 'CreateCompatibleBitmap',
|
||||
'GdipSaveImageToFile', 'PrintWindow', 'GetDesktopWindow', 'CreateDCW', 'CreateDCA',
|
||||
'SelectObject', 'DeleteDC', 'DeleteObject', 'GetDeviceCaps', 'GetSystemMetrics'
|
||||
},
|
||||
'Graphics': {
|
||||
'Direct3DCreate9', 'D3D11CreateDevice'
|
||||
},
|
||||
'Audio': {
|
||||
'WaveInOpen', 'WaveInClose', 'WaveInStart', 'WaveInStop'
|
||||
},
|
||||
'Clipboard': {
|
||||
'OpenClipboard', 'CloseClipboard', 'GetClipboardData', 'SetClipboardData'
|
||||
},
|
||||
'Camera': {
|
||||
'CapCreateCaptureWindowA', 'CapCreateCaptureWindowW'
|
||||
},
|
||||
'Memory': {
|
||||
'HeapAlloc', 'HeapFree', 'HeapSize', 'HeapCreate', 'GetProcessHeap',
|
||||
'LocalAlloc', 'LocalFree', 'GlobalAlloc', 'GlobalFree', 'GlobalUnlock',
|
||||
'HeapDestroy', 'GlobalLock', 'SysFreeString', 'SysAllocStringLen'
|
||||
},
|
||||
'Resource': {
|
||||
'LoadResource', 'SizeofResource', 'LockResource', 'FreeResource', 'FindResourceA'
|
||||
},
|
||||
'WindowControl': {
|
||||
'ShowWindow', 'DestroyWindow', 'TranslateMessage', 'DispatchMessageA', 'GetWindow',
|
||||
'PeekMessageA', 'GetWindowLongA', 'CallWindowProcA', 'SetWindowLongA', 'GetWindowTextA',
|
||||
'ScreenToClient', 'GetActiveWindow', 'CreateWindowExA', 'DefWindowProcA', 'GetMessageA',
|
||||
'RegisterClassA', 'UnregisterClassA', 'MessageBoxA'
|
||||
},
|
||||
'COM': {
|
||||
'CoCreateInstance', 'CoUninitialize', 'CoInitialize'
|
||||
}
|
||||
}
|
||||
|
||||
TARGET_DLLS = {
|
||||
'kernel32.dll', 'user32.dll', 'gdi32.dll', 'advapi32.dll', 'shell32.dll', 'ntdll.dll', 'hal.dll',
|
||||
'ws2_32.dll', 'wsock32.dll', 'wininet.dll', 'winhttp.dll', 'urlmon.dll', 'crypt32.dll', 'bcrypt.dll',
|
||||
'psapi.dll', 'dbghelp.dll', 'imagehlp.dll', 'shlwapi.dll', 'ole32.dll', 'oleaut32.dll', 'comctl32.dll',
|
||||
'mscoree.dll', 'vbscript.dll', 'netapi32.dll', 'iphlpapi.dll', 'wtsapi32.dll', 'version.dll', 'winmm.dll'
|
||||
}
|
||||
|
||||
BASE_SCHEMA = [
|
||||
"FileEntropy", "SectionMeanEntropy", "IsExe", "IsDll", "IsDriver", "Is64Bit", "Machine", "Magic",
|
||||
"CheckSum", "ImageBase", "SizeOfImage", "SizeOfHeaders",
|
||||
"Characteristics", "DllCharacteristics", "Subsystem", "LoaderFlags",
|
||||
"MajorLinkerVersion", "MinorLinkerVersion", "SizeOfCode",
|
||||
"SizeOfInitializedData", "SizeOfUninitializedData", "AddressOfEntryPoint",
|
||||
"BaseOfCode", "SectionAlignment", "FileAlignment",
|
||||
"MajorOperatingSystemVersion", "MinorOperatingSystemVersion",
|
||||
"MajorImageVersion", "MinorImageVersion",
|
||||
"MajorSubsystemVersion", "MinorSubsystemVersion",
|
||||
"SizeOfStackReserve", "SizeOfStackCommit", "SizeOfHeapReserve", "SizeOfHeapCommit",
|
||||
"NumberOfSections", "NumberOfRvaAndSizes", "PointerToSymbolTable", "NumberOfSymbols",
|
||||
"SizeOfOptionalHeader",
|
||||
|
||||
"TextSectionMaxEntropy", "TextSectionMeanEntropy", "TextSizeRatio",
|
||||
"DataSectionMaxEntropy", "DataSectionMeanEntropy", "DataSizeRatio",
|
||||
"RsrcSectionMaxEntropy", "RsrcSectionMeanEntropy", "RsrcSizeRatio",
|
||||
"SectionCount", "ExecutableSections",
|
||||
"WritableSections", "ReadableSections", "SectionException",
|
||||
|
||||
"Char_00000020_Count", "Char_00000020_MeanEntropy",
|
||||
"Char_00000040_Count", "Char_00000040_MeanEntropy",
|
||||
"Char_00000080_Count", "Char_00000080_MeanEntropy",
|
||||
"Char_02000000_Count", "Char_02000000_MeanEntropy",
|
||||
"Char_20000000_Count", "Char_20000000_MeanEntropy",
|
||||
"Char_40000000_Count", "Char_40000000_MeanEntropy",
|
||||
"Char_80000000_Count", "Char_80000000_MeanEntropy",
|
||||
|
||||
"IconCount", "ApiCount", "ExportCount", "DebugCount", "ExceptionCount",
|
||||
"ImportCount", "ImportFunctionCount",
|
||||
|
||||
"FileDescriptionLength", "FileVersionLength", "ProductNameLength",
|
||||
"ProductVersionLength", "CompanyNameLength", "LegalCopyrightLength",
|
||||
"CommentsLength", "InternalNameLength", "LegalTrademarksLength",
|
||||
"SpecialBuildLength", "PrivateBuildLength",
|
||||
|
||||
"TrustSigned", "IsDebug", "IsPatched", "IsPrivateBuild", "IsPreRelease",
|
||||
"IsSpecialBuild", "IsAdmin", "IsInstall", "HasTlsCallbacks",
|
||||
"HasInvalidTimestamp", "HasRelocationDirectory", "HasPacked", "FileTimeException"
|
||||
]
|
||||
|
||||
CAT_SCHEMA = [f"Cat_{k}" for k in sorted(API_CAT_MAPPING.keys())]
|
||||
DLL_SCHEMA = [f"Dll_{d.replace('.', '_')}" for d in sorted(TARGET_DLLS)]
|
||||
|
||||
_ALL_APIS = {api for apis in API_CAT_MAPPING.values() for api in apis}
|
||||
API_SCHEMA = [f"Api_{api}" for api in sorted(_ALL_APIS)]
|
||||
|
||||
SCHEMA = BASE_SCHEMA + CAT_SCHEMA + DLL_SCHEMA + API_SCHEMA
|
||||
|
||||
_API_TO_CATS = {}
|
||||
for _cat, _apis in API_CAT_MAPPING.items():
|
||||
for _api in _apis:
|
||||
if _api not in _API_TO_CATS:
|
||||
_API_TO_CATS[_api] = []
|
||||
_API_TO_CATS[_api].append(_cat)
|
||||
|
||||
PACKERS = {
|
||||
'upx', 'aspack', 'asprotect', 'pecompact', 'upack', 'fsg', 'mew',
|
||||
'mpress', 'ezip', 'pklt', 'shrink', 'petite', 'telock',
|
||||
'themida', 'winlicense', 'tmd', 'vmp', 'enigma', 'obsidium',
|
||||
'pelock', 'exestealth', 'yoda', 'armadillo', 'zprotect',
|
||||
'sforce', 'starforce', 'qihoo', 'wisevec', 'megastop',
|
||||
}
|
||||
INSTALLER_SIGS = [b"Nullsoft.NSIS", b"Inno Setup", b"7-Zip.7zip", b"InstallShield"]
|
||||
|
||||
####################################################################################################
|
||||
|
||||
@staticmethod
|
||||
def _safe_float(val):
|
||||
try:
|
||||
f = float(val)
|
||||
if math.isinf(f) or math.isnan(f): return 0.0
|
||||
return f
|
||||
except Exception:
|
||||
return 0.0
|
||||
|
||||
@staticmethod
|
||||
def _calc_entropy(data):
|
||||
if not data: return 0.0
|
||||
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)))
|
||||
|
||||
@staticmethod
|
||||
def _safe_div(n, d):
|
||||
return float(n) / d if d > 0 else 0.0
|
||||
|
||||
####################################################################################################
|
||||
|
||||
@classmethod
|
||||
def extract(cls, file_path):
|
||||
fts = {k: 0.0 for k in cls.SCHEMA}
|
||||
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()
|
||||
|
||||
pe = pefile.PE(data=file_bytes, fast_load=True)
|
||||
fts['TrustSigned'] = WinTrust.verify(file_path)
|
||||
|
||||
fh = pe.FILE_HEADER
|
||||
fts['Machine'] = fh.Machine
|
||||
fts['NumberOfSections'] = fh.NumberOfSections
|
||||
fts['TimeDateStamp'] = fh.TimeDateStamp
|
||||
fts['PointerToSymbolTable'] = fh.PointerToSymbolTable
|
||||
fts['NumberOfSymbols'] = fh.NumberOfSymbols
|
||||
fts['SizeOfOptionalHeader'] = fh.SizeOfOptionalHeader
|
||||
fts['Characteristics'] = fh.Characteristics
|
||||
|
||||
curr_ts = datetime.datetime.utcnow().timestamp()
|
||||
fts['HasInvalidTimestamp'] = 1 if (fh.TimeDateStamp < 631152000 or fh.TimeDateStamp > curr_ts + 2592000) else 0
|
||||
fts['FileTimeException'] = 1 if fh.TimeDateStamp == 0 else 0
|
||||
|
||||
if hasattr(pe, 'OPTIONAL_HEADER'):
|
||||
op = pe.OPTIONAL_HEADER
|
||||
fts['Magic'] = getattr(op, 'Magic', 0)
|
||||
fts['MajorLinkerVersion'] = getattr(op, 'MajorLinkerVersion', 0)
|
||||
fts['MinorLinkerVersion'] = getattr(op, 'MinorLinkerVersion', 0)
|
||||
fts['SizeOfCode'] = getattr(op, 'SizeOfCode', 0)
|
||||
fts['SizeOfInitializedData'] = getattr(op, 'SizeOfInitializedData', 0)
|
||||
fts['SizeOfUninitializedData'] = getattr(op, 'SizeOfUninitializedData', 0)
|
||||
fts['AddressOfEntryPoint'] = getattr(op, 'AddressOfEntryPoint', 0)
|
||||
fts['BaseOfCode'] = getattr(op, 'BaseOfCode', 0)
|
||||
fts['ImageBase'] = getattr(op, 'ImageBase', 0)
|
||||
fts['SectionAlignment'] = getattr(op, 'SectionAlignment', 0)
|
||||
fts['FileAlignment'] = getattr(op, 'FileAlignment', 0)
|
||||
fts['MajorOperatingSystemVersion'] = getattr(op, 'MajorOperatingSystemVersion', 0)
|
||||
fts['MinorOperatingSystemVersion'] = getattr(op, 'MinorOperatingSystemVersion', 0)
|
||||
fts['MajorImageVersion'] = getattr(op, 'MajorImageVersion', 0)
|
||||
fts['MinorImageVersion'] = getattr(op, 'MinorImageVersion', 0)
|
||||
fts['MajorSubsystemVersion'] = getattr(op, 'MajorSubsystemVersion', 0)
|
||||
fts['MinorSubsystemVersion'] = getattr(op, 'MinorSubsystemVersion', 0)
|
||||
fts['SizeOfImage'] = getattr(op, 'SizeOfImage', 0)
|
||||
fts['SizeOfHeaders'] = getattr(op, 'SizeOfHeaders', 0)
|
||||
fts['CheckSum'] = getattr(op, 'CheckSum', 0)
|
||||
fts['Subsystem'] = getattr(op, 'Subsystem', 0)
|
||||
fts['DllCharacteristics'] = getattr(op, 'DllCharacteristics', 0)
|
||||
fts['SizeOfStackReserve'] = getattr(op, 'SizeOfStackReserve', 0)
|
||||
fts['SizeOfStackCommit'] = getattr(op, 'SizeOfStackCommit', 0)
|
||||
fts['SizeOfHeapReserve'] = getattr(op, 'SizeOfHeapReserve', 0)
|
||||
fts['SizeOfHeapCommit'] = getattr(op, 'SizeOfHeapCommit', 0)
|
||||
fts['LoaderFlags'] = getattr(op, 'LoaderFlags', 0)
|
||||
fts['NumberOfRvaAndSizes'] = getattr(op, 'NumberOfRvaAndSizes', 0)
|
||||
fts['Is64Bit'] = 1 if fh.Machine in (0x8664, 0xAA64, 0x0200) else 0
|
||||
fts['IsExe'] = 1 if pe.is_exe() else 0
|
||||
fts['IsDll'] = 1 if pe.is_dll() else 0
|
||||
fts['IsDriver'] = 1 if fts['Subsystem'] == 1 else 0
|
||||
|
||||
if hasattr(op, 'DATA_DIRECTORY'):
|
||||
reloc_idx = pefile.DIRECTORY_ENTRY.get('IMAGE_DIRECTORY_ENTRY_BASERELOC', 5)
|
||||
if len(op.DATA_DIRECTORY) > reloc_idx and op.DATA_DIRECTORY[reloc_idx].Size > 0:
|
||||
fts['HasRelocationDirectory'] = 1
|
||||
|
||||
try:
|
||||
fts['FileEntropy'] = cls._calc_entropy(file_bytes)
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
sec_entropies = []
|
||||
text_entropies = []
|
||||
data_entropies = []
|
||||
rsrc_entropies = []
|
||||
char_flags = [0x00000020, 0x00000040, 0x00000080, 0x02000000, 0x20000000, 0x40000000, 0x80000000]
|
||||
|
||||
if hasattr(pe, 'sections'):
|
||||
fts['SectionCount'] = len(pe.sections)
|
||||
for section in pe.sections:
|
||||
try:
|
||||
name = section.Name.decode('ascii', 'ignore').strip('\x00')
|
||||
except Exception:
|
||||
name = ""
|
||||
|
||||
try:
|
||||
s_data = section.get_data()
|
||||
s_entropy = cls._calc_entropy(s_data)
|
||||
except Exception:
|
||||
s_data = b""
|
||||
s_entropy = 0.0
|
||||
|
||||
sec_entropies.append(s_entropy)
|
||||
|
||||
if any(p in name.lower() for p in cls.PACKERS): fts['HasPacked'] = 1
|
||||
if section.Characteristics & 0x20000000: fts['ExecutableSections'] += 1
|
||||
if section.Characteristics & 0x80000000: fts['WritableSections'] += 1
|
||||
if section.Characteristics & 0x40000000: fts['ReadableSections'] += 1
|
||||
if section.SizeOfRawData + section.PointerToRawData > fsize: fts['SectionException'] = 1
|
||||
|
||||
for flag in char_flags:
|
||||
if section.Characteristics & flag:
|
||||
fts[f'Char_{flag:08X}_Count'] += 1
|
||||
fts[f'Char_{flag:08X}_MeanEntropy'] += s_entropy
|
||||
|
||||
ratio = cls._safe_div(section.SizeOfRawData, fsize)
|
||||
if name.startswith('.text'):
|
||||
text_entropies.append(s_entropy)
|
||||
fts['TextSizeRatio'] += ratio
|
||||
elif name.startswith('.data'):
|
||||
data_entropies.append(s_entropy)
|
||||
fts['DataSizeRatio'] += ratio
|
||||
elif name.startswith('.rsrc'):
|
||||
rsrc_entropies.append(s_entropy)
|
||||
fts['RsrcSizeRatio'] += ratio
|
||||
if b"requireAdministrator" in s_data: fts['IsAdmin'] = 1
|
||||
for sig in cls.INSTALLER_SIGS:
|
||||
if sig in s_data:
|
||||
fts['IsInstall'] = 1
|
||||
break
|
||||
|
||||
fts['SectionMeanEntropy'] = cls._safe_div(sum(sec_entropies), len(sec_entropies))
|
||||
fts['TextSectionMaxEntropy'] = max(text_entropies) if text_entropies else 0.0
|
||||
fts['TextSectionMeanEntropy'] = cls._safe_div(sum(text_entropies), len(text_entropies))
|
||||
fts['DataSectionMaxEntropy'] = max(data_entropies) if data_entropies else 0.0
|
||||
fts['DataSectionMeanEntropy'] = cls._safe_div(sum(data_entropies), len(data_entropies))
|
||||
fts['RsrcSectionMaxEntropy'] = max(rsrc_entropies) if rsrc_entropies else 0.0
|
||||
fts['RsrcSectionMeanEntropy'] = cls._safe_div(sum(rsrc_entropies), len(rsrc_entropies))
|
||||
|
||||
for flag in char_flags:
|
||||
fts[f'Char_{flag:08X}_MeanEntropy'] = cls._safe_div(fts[f'Char_{flag:08X}_MeanEntropy'], fts[f'Char_{flag:08X}_Count'])
|
||||
|
||||
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']
|
||||
])
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
if hasattr(pe, 'DIRECTORY_ENTRY_TLS') and hasattr(pe.DIRECTORY_ENTRY_TLS, 'struct'):
|
||||
if getattr(pe.DIRECTORY_ENTRY_TLS.struct, 'AddressOfCallBacks', 0) != 0:
|
||||
fts['HasTlsCallbacks'] = 1
|
||||
|
||||
if hasattr(pe, 'VS_FIXEDFILEINFO') and len(pe.VS_FIXEDFILEINFO) > 0:
|
||||
flags = getattr(pe.VS_FIXEDFILEINFO[0], 'FileFlags', 0)
|
||||
fts['IsDebug'] = 1 if flags & 0x1 else 0
|
||||
fts['IsPreRelease'] = 1 if flags & 0x2 else 0
|
||||
fts['IsPatched'] = 1 if flags & 0x4 else 0
|
||||
fts['IsPrivateBuild'] = 1 if flags & 0x8 else 0
|
||||
fts['IsSpecialBuild'] = 1 if flags & 0x20 else 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)
|
||||
v = val.decode('utf-8', 'ignore') if isinstance(val, bytes) else str(val)
|
||||
length = len(v)
|
||||
if k == 'FileDescription': fts['FileDescriptionLength'] = length
|
||||
elif k == 'FileVersion': fts['FileVersionLength'] = length
|
||||
elif k == 'ProductName': fts['ProductNameLength'] = length
|
||||
elif k == 'ProductVersion': fts['ProductVersionLength'] = length
|
||||
elif k == 'CompanyName': fts['CompanyNameLength'] = length
|
||||
elif k == 'LegalCopyright': fts['LegalCopyrightLength'] = length
|
||||
elif k == 'Comments': fts['CommentsLength'] = length
|
||||
elif k == 'InternalName': fts['InternalNameLength'] = length
|
||||
elif k == 'LegalTrademarks': fts['LegalTrademarksLength'] = length
|
||||
elif k == 'SpecialBuild': fts['SpecialBuildLength'] = length
|
||||
elif k == 'PrivateBuild': fts['PrivateBuildLength'] = length
|
||||
except Exception:
|
||||
continue
|
||||
|
||||
if hasattr(pe, 'DIRECTORY_ENTRY_IMPORT'):
|
||||
fts['ImportCount'] = len(pe.DIRECTORY_ENTRY_IMPORT)
|
||||
for entry in pe.DIRECTORY_ENTRY_IMPORT:
|
||||
if getattr(entry, 'dll', None):
|
||||
try:
|
||||
dll_name = entry.dll.decode('ascii', 'ignore').lower()
|
||||
if dll_name in cls.TARGET_DLLS:
|
||||
fts[f"Dll_{dll_name.replace('.', '_')}"] = 1.0
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
imports = getattr(entry, 'imports', [])
|
||||
for imp in imports:
|
||||
fts['ImportFunctionCount'] += 1
|
||||
if not getattr(imp, 'name', None): continue
|
||||
try:
|
||||
func_name = imp.name.decode('ascii', 'ignore')
|
||||
if func_name in cls._ALL_APIS:
|
||||
fts[f'Api_{func_name}'] += 1
|
||||
fts['ApiCount'] += 1
|
||||
for cat in cls._API_TO_CATS.get(func_name, []):
|
||||
fts[f'Cat_{cat}'] += 1
|
||||
except Exception:
|
||||
continue
|
||||
|
||||
if hasattr(pe, 'DIRECTORY_ENTRY_EXPORT') and hasattr(pe.DIRECTORY_ENTRY_EXPORT, 'symbols'):
|
||||
fts['ExportCount'] = len(pe.DIRECTORY_ENTRY_EXPORT.symbols)
|
||||
|
||||
if hasattr(pe, 'DIRECTORY_ENTRY_RESOURCE'):
|
||||
for entry in pe.DIRECTORY_ENTRY_RESOURCE.entries:
|
||||
if getattr(entry, 'id', None) == 3 and hasattr(entry, 'directory'):
|
||||
fts['IconCount'] += len(getattr(entry.directory, 'entries', []))
|
||||
|
||||
if hasattr(pe, 'OPTIONAL_HEADER') and hasattr(pe.OPTIONAL_HEADER, 'DATA_DIRECTORY') and len(pe.OPTIONAL_HEADER.DATA_DIRECTORY) > 3:
|
||||
exc_dir = pe.OPTIONAL_HEADER.DATA_DIRECTORY[3]
|
||||
if exc_dir.Size > 0:
|
||||
fts['ExceptionCount'] = exc_dir.Size // 12 if fts['Machine'] in (0x8664, 0xAA64) else 0
|
||||
|
||||
if hasattr(pe, 'DIRECTORY_ENTRY_DEBUG'):
|
||||
fts['DebugCount'] = len(pe.DIRECTORY_ENTRY_DEBUG)
|
||||
|
||||
for k in fts:
|
||||
fts[k] = cls._safe_float(fts[k])
|
||||
|
||||
return fts
|
||||
|
||||
except Exception:
|
||||
return None
|
||||
finally:
|
||||
if pe:
|
||||
pe.close()
|
||||
|
||||
####################################################################################################
|
||||
|
||||
class ModelPredictor:
|
||||
def __init__(self, model_path, feature_path):
|
||||
self.sess = None
|
||||
self.input_name = None
|
||||
self.feature_order = []
|
||||
self.model_features = self._load_features(feature_path)
|
||||
self._load_model(model_path)
|
||||
self._build_input_map()
|
||||
|
||||
def _load_features(self, path):
|
||||
if os.path.exists(path):
|
||||
try:
|
||||
with open(path, 'r') as f:
|
||||
return json.load(f)
|
||||
except Exception:
|
||||
pass
|
||||
return [re.sub(r'[^A-Za-z0-9_]+', '', f) for f in FeatureExtractor.SCHEMA]
|
||||
|
||||
def _load_model(self, model_path):
|
||||
if not os.path.exists(model_path):
|
||||
raise FileNotFoundError(f"Model missing: {model_path}")
|
||||
|
||||
self.sess = ort.InferenceSession(model_path, providers=['CPUExecutionProvider'])
|
||||
model_inputs = self.sess.get_inputs()
|
||||
self.input_name = model_inputs[0].name
|
||||
expected_dim = model_inputs[0].shape[1]
|
||||
|
||||
current_dim = len(self.model_features)
|
||||
if current_dim != expected_dim:
|
||||
raise ValueError(f"Dimension Mismatch: Expected {expected_dim}, got {current_dim}.")
|
||||
|
||||
def _build_input_map(self):
|
||||
local_map = {re.sub(r'[^A-Za-z0-9_]+', '', raw_name): raw_name for raw_name in FeatureExtractor.SCHEMA}
|
||||
self.feature_order = [local_map.get(req_feat) for req_feat in self.model_features]
|
||||
|
||||
def predict(self, raw_data):
|
||||
vec_data = [raw_data.get(key, 0.0) if key else 0.0 for key in self.feature_order]
|
||||
vec = np.array(vec_data, dtype=np.float32).reshape(1, -1)
|
||||
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 get_threat_name(prob_float):
|
||||
prob_pct = min(int(prob_float * 100), 99)
|
||||
|
||||
if prob_pct >= 80:
|
||||
return f"General:WinPE/Malware.{prob_pct}!ml"
|
||||
elif prob_pct >= 50:
|
||||
return f"General:WinPE/Suspicious.{prob_pct}!ml"
|
||||
else:
|
||||
return "Undetected"
|
||||
|
||||
def scan_target(target, predictor):
|
||||
if not os.path.exists(target):
|
||||
print(json.dumps({"result": "error", "prob": 0.0, "file": target, "details": "Path not found"}))
|
||||
sys.stdout.flush()
|
||||
return
|
||||
|
||||
try:
|
||||
data = FeatureExtractor.extract(target)
|
||||
if not data:
|
||||
print(json.dumps({"result": "error", "prob": 0.0, "file": target, "details": "Extraction failed"}))
|
||||
sys.stdout.flush()
|
||||
return
|
||||
|
||||
prob = predictor.predict(data)
|
||||
label = get_threat_name(prob)
|
||||
|
||||
print(json.dumps({"result": label, "prob": round(prob, 4), "file": target}))
|
||||
sys.stdout.flush()
|
||||
|
||||
except Exception as e:
|
||||
print(json.dumps({"result": "error", "prob": 0.0, "file": target, "details": str(e)}))
|
||||
sys.stdout.flush()
|
||||
|
||||
####################################################################################################
|
||||
|
||||
if __name__ == "__main__":
|
||||
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(json.dumps({"result": "fatal", "details": str(e)}))
|
||||
sys.stdout.flush()
|
||||
sys.exit(1)
|
||||
|
||||
if len(sys.argv) > 1:
|
||||
for path in sys.argv[1:]:
|
||||
scan_target(path.strip(), predictor)
|
||||
else:
|
||||
for line in sys.stdin:
|
||||
target = line.strip()
|
||||
if not target or target.lower() in ['q', 'exit']:
|
||||
break
|
||||
scan_target(target, predictor)
|
||||
@@ -1,4 +0,0 @@
|
||||
onnxruntime
|
||||
numpy
|
||||
pefile
|
||||
signify[full]
|
||||
@@ -114,7 +114,7 @@ def train_process(X, y):
|
||||
n_neg = (y_train == 0).sum()
|
||||
|
||||
base_weight = n_neg / n_pos if n_pos > 0 else 1.0
|
||||
weight_ratio_target = 0.01
|
||||
weight_ratio_target = 0.005
|
||||
final_pos_weight = base_weight * weight_ratio_target
|
||||
|
||||
print(f"[*] Balance Report: Safe={n_neg}, Malware={n_pos}")
|
||||
|
||||
@@ -21,7 +21,7 @@ LGBM_PARAMS = {
|
||||
'objective': 'binary',
|
||||
'metric': ['binary_logloss', 'auc'],
|
||||
'boosting_type': 'gbdt',
|
||||
'num_leaves': 63,
|
||||
'num_leaves': 64,
|
||||
'learning_rate': 0.05,
|
||||
'feature_fraction': 0.8,
|
||||
'bagging_fraction': 0.8,
|
||||
|
||||
+148
-11
@@ -292,17 +292,14 @@ body {
|
||||
border: 1px solid var(--border-color);
|
||||
border-radius: 12px;
|
||||
background-color: var(--bg-panel);
|
||||
overflow-y: auto;
|
||||
overflow-x: auto;
|
||||
}
|
||||
|
||||
.virus-list {
|
||||
list-style: none;
|
||||
height: 100%;
|
||||
overflow-y: auto;
|
||||
overflow-x: auto;
|
||||
padding: 12px;
|
||||
}
|
||||
|
||||
.virus-list .manage-list-item {
|
||||
padding: 0;
|
||||
margin: 0;
|
||||
min-width: max-content;
|
||||
}
|
||||
|
||||
@@ -498,6 +495,7 @@ body {
|
||||
height: 16px;
|
||||
accent-color: var(--accent-color);
|
||||
cursor: pointer;
|
||||
flex-shrink: 0;
|
||||
}
|
||||
|
||||
.manage-list-item-content {
|
||||
@@ -510,13 +508,16 @@ body {
|
||||
|
||||
.custom-select-wrapper {
|
||||
position: relative;
|
||||
min-width: 120px;
|
||||
min-width: 100px;
|
||||
display: inline-grid;
|
||||
vertical-align: middle;
|
||||
user-select: none;
|
||||
}
|
||||
select.hidden + .custom-select-wrapper {
|
||||
display: none !important;
|
||||
}
|
||||
.custom-select-trigger {
|
||||
grid-area: 1 / 1;
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
align-items: center;
|
||||
@@ -530,7 +531,24 @@ select.hidden + .custom-select-wrapper {
|
||||
cursor: pointer;
|
||||
transition: border-color 0.2s, box-shadow 0.2s;
|
||||
gap: 12px;
|
||||
box-sizing: border-box;
|
||||
}
|
||||
.custom-select-phantom {
|
||||
grid-area: 1 / 1;
|
||||
visibility: hidden;
|
||||
pointer-events: none;
|
||||
display: grid;
|
||||
padding: 8px 16px;
|
||||
font-size: 14px;
|
||||
font-weight: 500;
|
||||
box-sizing: border-box;
|
||||
}
|
||||
.custom-select-phantom span {
|
||||
grid-area: 1 / 1;
|
||||
white-space: nowrap;
|
||||
padding-right: 28px;
|
||||
}
|
||||
|
||||
.custom-select-wrapper.open .custom-select-trigger,
|
||||
.custom-select-trigger:hover {
|
||||
border-color: var(--accent-color);
|
||||
@@ -550,7 +568,10 @@ select.hidden + .custom-select-wrapper {
|
||||
position: absolute;
|
||||
top: calc(100% + 8px);
|
||||
left: 0;
|
||||
right: 0;
|
||||
min-width: 100%;
|
||||
width: max-content;
|
||||
white-space: nowrap;
|
||||
|
||||
background-color: var(--bg-panel);
|
||||
border: 1px solid var(--border-color);
|
||||
border-radius: 10px;
|
||||
@@ -558,12 +579,10 @@ select.hidden + .custom-select-wrapper {
|
||||
z-index: 100;
|
||||
list-style: none;
|
||||
margin: 0;
|
||||
|
||||
max-height: 0;
|
||||
padding: 0 6px;
|
||||
border-width: 0;
|
||||
overflow: hidden;
|
||||
|
||||
opacity: 0;
|
||||
visibility: hidden;
|
||||
transform: translateY(-10px);
|
||||
@@ -660,6 +679,124 @@ select.hidden + .custom-select-wrapper {
|
||||
opacity: 1 !important;
|
||||
}
|
||||
|
||||
.manage-list-header {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 12px;
|
||||
padding: 12px 16px;
|
||||
border-bottom: 1px solid var(--border-color);
|
||||
background-color: var(--bg-panel);
|
||||
font-weight: 600;
|
||||
font-size: 13px;
|
||||
color: var(--text-secondary);
|
||||
position: sticky;
|
||||
top: 0;
|
||||
z-index: 10;
|
||||
}
|
||||
|
||||
.manage-list-header input[type="checkbox"] {
|
||||
width: 16px;
|
||||
height: 16px;
|
||||
accent-color: var(--accent-color);
|
||||
cursor: pointer;
|
||||
flex-shrink: 0;
|
||||
}
|
||||
|
||||
.header-cols-container, .manage-list-item-content {
|
||||
display: flex;
|
||||
flex-grow: 1;
|
||||
min-width: 0;
|
||||
gap: 16px;
|
||||
align-items: center;
|
||||
}
|
||||
|
||||
.col-header {
|
||||
position: relative;
|
||||
cursor: pointer;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
padding: 0 8px;
|
||||
border-right: 1px solid var(--border-color);
|
||||
background-color: var(--bg-panel);
|
||||
user-select: none;
|
||||
-webkit-user-select: none;
|
||||
}
|
||||
|
||||
.col-header:last-child {
|
||||
border-right: none;
|
||||
}
|
||||
|
||||
.header-text {
|
||||
overflow: hidden;
|
||||
text-overflow: ellipsis;
|
||||
white-space: nowrap;
|
||||
flex-grow: 1;
|
||||
}
|
||||
|
||||
.manage-list-header, .col-header, .col-resizer {
|
||||
user-select: none;
|
||||
-webkit-user-select: none;
|
||||
}
|
||||
|
||||
.col-resizer {
|
||||
position: absolute;
|
||||
right: -5px;
|
||||
top: 0;
|
||||
bottom: 0;
|
||||
width: 10px;
|
||||
cursor: col-resize;
|
||||
z-index: 10;
|
||||
background-color: transparent !important;
|
||||
}
|
||||
|
||||
.col-resizer::after {
|
||||
content: "";
|
||||
position: absolute;
|
||||
left: 50%;
|
||||
top: 0;
|
||||
bottom: 0;
|
||||
width: 1px;
|
||||
background-color: transparent;
|
||||
transition: background-color 0.2s;
|
||||
}
|
||||
|
||||
.col-resizer:hover::after,
|
||||
.col-resizer.resizing::after {
|
||||
background-color: var(--text-secondary) !important;
|
||||
opacity: 0.6;
|
||||
}
|
||||
|
||||
body.resizing-active,
|
||||
body.resizing-active * {
|
||||
user-select: none !important;
|
||||
-webkit-user-select: none !important;
|
||||
cursor: col-resize !important;
|
||||
}
|
||||
|
||||
.col-resizer:hover {
|
||||
background-color: var(--accent-color);
|
||||
opacity: 0.5;
|
||||
}
|
||||
|
||||
.col-header:hover {
|
||||
color: var(--text-primary);
|
||||
}
|
||||
|
||||
.sort-icon {
|
||||
font-size: 10px;
|
||||
margin-left: 4px;
|
||||
color: var(--accent-color);
|
||||
width: 12px;
|
||||
}
|
||||
|
||||
.row-col {
|
||||
overflow: hidden;
|
||||
text-overflow: ellipsis;
|
||||
white-space: nowrap;
|
||||
font-size: 14px;
|
||||
color: var(--text-primary);
|
||||
}
|
||||
|
||||
::-webkit-scrollbar { width: 6px; height: 6px; }
|
||||
::-webkit-scrollbar-track { background: transparent; }
|
||||
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 10px; }
|
||||
|
||||
File diff suppressed because it is too large.
Load diff
+521
-1457
File diff suppressed because it is too large.
Load diff
@@ -5,6 +5,7 @@
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>PYAS Security</title>
|
||||
<link rel="stylesheet" href="/static/css/style.css">
|
||||
<script defer src="/static/js/i18n.js"></script>
|
||||
<script defer src="/static/js/main.js"></script>
|
||||
</head>
|
||||
<body>
|
||||
@@ -83,13 +84,12 @@
|
||||
<p class="section-desc" id="progress_text" data-i18n>此選項可以選擇掃描方式</p>
|
||||
</div>
|
||||
<div class="action-group modern-action-group">
|
||||
<button class="action-btn modern-btn danger-btn hidden" id="solve_btn" data-i18n>刪除</button>
|
||||
<select id="scan_method_select" class="modern-select">
|
||||
<option value="none" selected disabled data-i18n>選擇</option>
|
||||
<option value="smart" data-i18n>智能</option>
|
||||
<option value="file" data-i18n>檔案</option>
|
||||
<option value="path" data-i18n>路徑</option>
|
||||
<option value="full" data-i18n>全盤</option>
|
||||
<option value="smart" data-i18n>智能掃描</option>
|
||||
<option value="file" data-i18n>檔案掃描</option>
|
||||
<option value="path" data-i18n>路徑掃描</option>
|
||||
<option value="full" data-i18n>全盤掃描</option>
|
||||
</select>
|
||||
<button class="action-btn modern-btn hidden" id="stop_btn" data-i18n>停止</button>
|
||||
</div>
|
||||
|
||||
@@ -124,7 +124,16 @@ class WindowAPI:
|
||||
if not self.check_singleton("PYAS_Security_Mutex"):
|
||||
hwnd = self.user32.FindWindowW(None, "PYAS Security")
|
||||
if hwnd:
|
||||
if "-scan" in self.args_pyas:
|
||||
if "-quit" in self.args_pyas:
|
||||
try:
|
||||
cds = COPYDATASTRUCT()
|
||||
cds.dwData = 3
|
||||
cds.cbData = 0
|
||||
cds.lpData = None
|
||||
self.user32.SendMessageTimeoutW(hwnd, 0x004A, 0, ctypes.byref(cds), 0x0002, 3000, None)
|
||||
except Exception:
|
||||
pass
|
||||
elif "-scan" in self.args_pyas:
|
||||
try:
|
||||
idx = self.args_pyas.index("-scan")
|
||||
target = self.args_pyas[idx+1]
|
||||
@@ -135,6 +144,7 @@ class WindowAPI:
|
||||
buffer = ctypes.create_string_buffer(encoded)
|
||||
cds.lpData = ctypes.cast(buffer, ctypes.c_void_p)
|
||||
self.user32.SendMessageTimeoutW(hwnd, 0x004A, 0, ctypes.byref(cds), 0x0002, 3000, None)
|
||||
self.user32.SetForegroundWindow(hwnd)
|
||||
except Exception:
|
||||
pass
|
||||
else:
|
||||
@@ -144,9 +154,12 @@ class WindowAPI:
|
||||
cds.cbData = 0
|
||||
cds.lpData = None
|
||||
self.user32.SendMessageTimeoutW(hwnd, 0x004A, 0, ctypes.byref(cds), 0x0002, 3000, None)
|
||||
self.user32.SetForegroundWindow(hwnd)
|
||||
except Exception:
|
||||
pass
|
||||
self.user32.SetForegroundWindow(hwnd)
|
||||
os._exit(0)
|
||||
|
||||
if "-quit" in self.args_pyas:
|
||||
os._exit(0)
|
||||
|
||||
self.init_variables()
|
||||
@@ -411,6 +424,7 @@ class WindowAPI:
|
||||
self.cloud_queue = queue.Queue()
|
||||
|
||||
self.lock_driver = threading.RLock()
|
||||
self.lock_update = threading.RLock()
|
||||
self.driver_port = None
|
||||
self.scan_running = False
|
||||
self.scan_finished = False
|
||||
@@ -426,7 +440,7 @@ class WindowAPI:
|
||||
self.lock_net = threading.RLock()
|
||||
|
||||
self.pyas_default = {
|
||||
"version": "3.5.1",
|
||||
"version": "3.5.2",
|
||||
"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"],
|
||||
@@ -490,36 +504,47 @@ class WindowAPI:
|
||||
self.write_log("WARN", "save_config", detail=str(e), success=False)
|
||||
|
||||
def update_config(self, key, value):
|
||||
with self.lock_config:
|
||||
old_value = self.pyas_config.get(key)
|
||||
if old_value != value:
|
||||
with self.lock_update:
|
||||
with self.lock_config:
|
||||
old_value = self.pyas_config.get(key)
|
||||
if old_value == value:
|
||||
return value
|
||||
self.pyas_config[key] = value
|
||||
self.write_log("INFO", "Config Update", detail=f"[{key}] {old_value} -> {value}")
|
||||
self.save_config()
|
||||
|
||||
if key == "process_switch" and value:
|
||||
self.start_daemon_thread(self.protect_proc_thread)
|
||||
elif key == "document_switch" and value:
|
||||
self.start_daemon_thread(self.protect_file_thread)
|
||||
elif key == "system_switch" and value:
|
||||
self.start_daemon_thread(self.protect_system_thread)
|
||||
elif key == "network_switch" and value:
|
||||
self.start_daemon_thread(self.protect_net_thread)
|
||||
elif key == "context_switch":
|
||||
self.register_context_menu(value)
|
||||
elif key == "driver_switch":
|
||||
if value:
|
||||
if self.install_system_driver():
|
||||
self.start_daemon_thread(self.pipe_server_thread)
|
||||
|
||||
if key == "process_switch" and value:
|
||||
self.start_daemon_thread(self.protect_proc_thread)
|
||||
elif key == "document_switch" and value:
|
||||
self.start_daemon_thread(self.protect_file_thread)
|
||||
elif key == "system_switch" and value:
|
||||
self.start_daemon_thread(self.protect_system_thread)
|
||||
elif key == "network_switch" and value:
|
||||
self.start_daemon_thread(self.protect_net_thread)
|
||||
elif key == "context_switch":
|
||||
self.register_context_menu(value)
|
||||
elif key == "language":
|
||||
if self.tray_icon:
|
||||
try:
|
||||
self.tray_icon.update_menu()
|
||||
except Exception:
|
||||
pass
|
||||
elif key == "driver_switch":
|
||||
if value:
|
||||
if self.install_system_driver():
|
||||
self.start_daemon_thread(self.pipe_server_thread)
|
||||
else:
|
||||
with self.lock_config:
|
||||
self.pyas_config[key] = False
|
||||
self.write_log("INFO", "Config Update", detail=f"[{key}] True -> False")
|
||||
self.save_config()
|
||||
if self._window:
|
||||
self._window.evaluate_js(f"if(window.revertSwitch) window.revertSwitch('{key}');")
|
||||
return False
|
||||
else:
|
||||
with self.lock_config:
|
||||
self.pyas_config[key] = False
|
||||
self.write_log("INFO", "Config Update", detail=f"[{key}] True -> False")
|
||||
self.save_config()
|
||||
if self._window:
|
||||
self._window.evaluate_js(f"if(window.revertSwitch) window.revertSwitch('{key}');")
|
||||
else:
|
||||
self.stop_system_driver()
|
||||
self.stop_system_driver()
|
||||
|
||||
return value
|
||||
|
||||
def get_config(self):
|
||||
with self.lock_config:
|
||||
@@ -800,9 +825,9 @@ class WindowAPI:
|
||||
|
||||
def init_engine_thread(self):
|
||||
try:
|
||||
self.backup_mbr()
|
||||
self.relock_file()
|
||||
self.init_whitelist()
|
||||
self.start_daemon_thread(self.backup_mbr)
|
||||
self.start_daemon_thread(self.relock_file)
|
||||
self.start_daemon_thread(self.init_whitelist)
|
||||
self.start_daemon_thread(self.popup_intercept_thread)
|
||||
|
||||
def log_callback(x):
|
||||
@@ -1658,6 +1683,15 @@ class WindowAPI:
|
||||
if isinstance(norm_paths, str):
|
||||
norm_paths = [norm_paths] if norm_paths else []
|
||||
|
||||
if not norm_paths:
|
||||
return 0
|
||||
|
||||
if action == "add":
|
||||
if list_key == "white_list":
|
||||
self.remove_list_items("quarantine", norm_paths)
|
||||
elif list_key == "quarantine":
|
||||
self.remove_list_items("white_list", norm_paths)
|
||||
|
||||
acted_items = []
|
||||
with self.lock_config:
|
||||
target_list = self.pyas_config.setdefault(list_key, [])
|
||||
@@ -2367,7 +2401,9 @@ class WindowAPI:
|
||||
time.sleep(0.5)
|
||||
with self.lock_config:
|
||||
rules = self.pyas_config.get("block_list", [])
|
||||
cur_ver = self.pyas_config.get("version", "0.0.0")
|
||||
|
||||
if not rules:
|
||||
continue
|
||||
|
||||
hwnd_list.clear()
|
||||
self.user32.EnumWindows(enum_cb, 0)
|
||||
@@ -2379,10 +2415,7 @@ class WindowAPI:
|
||||
if pid.value <= 4:
|
||||
continue
|
||||
|
||||
proc_name, file_path = self.get_exe_info(pid.value)
|
||||
|
||||
if proc_name != "PYAS_Setup.exe" and not rules:
|
||||
continue
|
||||
proc_name, _ = self.get_exe_info(pid.value)
|
||||
|
||||
length = self.user32.GetWindowTextLengthW(hWnd)
|
||||
title = ctypes.create_unicode_buffer(length + 1)
|
||||
@@ -2393,15 +2426,6 @@ class WindowAPI:
|
||||
t_str = str(title.value)
|
||||
c_str = str(class_name.value)
|
||||
|
||||
if proc_name == "PYAS_Setup.exe" and c_str == "WindowClass_0" and t_str == "PYAS Setup":
|
||||
if file_path:
|
||||
setup_ver = self.get_file_version(file_path)
|
||||
if self.compare_versions(setup_ver, cur_ver):
|
||||
self.close()
|
||||
|
||||
if not rules:
|
||||
continue
|
||||
|
||||
is_pass = any(item.get("exe") == proc_name or item.get("class") == c_str for item in self.pass_windows)
|
||||
if is_pass:
|
||||
continue
|
||||
@@ -2529,6 +2553,9 @@ class WindowHook:
|
||||
if self.api_ref and self.api_ref._window:
|
||||
self.api_ref._window.restore()
|
||||
self.api_ref._window.show()
|
||||
elif cds.dwData == 3:
|
||||
if self.api_ref:
|
||||
self.api_ref.close()
|
||||
except Exception:
|
||||
pass
|
||||
return 1
|
||||
@@ -2556,15 +2583,15 @@ class WindowHook:
|
||||
|
||||
####################################################################################################
|
||||
|
||||
def get_free_port():
|
||||
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
|
||||
s.bind(('127.0.0.1', 0))
|
||||
return s.getsockname()[1]
|
||||
|
||||
def start_api(port):
|
||||
def start_api(port_container, ready_event):
|
||||
TCPServer.allow_reuse_address = True
|
||||
with TCPServer(("127.0.0.1", port), NoCacheRequestHandler) as httpd:
|
||||
httpd.serve_forever()
|
||||
try:
|
||||
with TCPServer(("127.0.0.1", 0), NoCacheRequestHandler) as httpd:
|
||||
port_container.append(httpd.server_address[1])
|
||||
ready_event.set()
|
||||
httpd.serve_forever()
|
||||
except Exception:
|
||||
ready_event.set()
|
||||
|
||||
####################################################################################################
|
||||
|
||||
@@ -2572,11 +2599,21 @@ if __name__ == "__main__":
|
||||
hide_on_start = "-h" in sys.argv or "-hide" in sys.argv
|
||||
init_width, init_height = 980, 670
|
||||
|
||||
port = get_free_port()
|
||||
os.environ["WEBVIEW2_ADDITIONAL_BROWSER_ARGUMENTS"] = "--proxy-bypass-list=127.0.0.1,localhost"
|
||||
|
||||
api_thread = threading.Thread(target=start_api, args=(port,), daemon=True)
|
||||
port_container = []
|
||||
server_ready = threading.Event()
|
||||
|
||||
api_thread = threading.Thread(target=start_api, args=(port_container, server_ready), daemon=True)
|
||||
api_thread.start()
|
||||
|
||||
server_ready.wait(timeout=5.0)
|
||||
|
||||
if not port_container:
|
||||
os._exit(1)
|
||||
|
||||
port = port_container[0]
|
||||
|
||||
js_api = WindowAPI()
|
||||
|
||||
user32 = ctypes.windll.user32
|
||||
|
||||
+11
-4
@@ -742,7 +742,7 @@ class cloud_scanner:
|
||||
r = self._request("POST", f"/api/rescan/{sha256}")
|
||||
return r is not None and r.json().get('status') == 'success'
|
||||
|
||||
def upload_file(self, file_path, api_host, api_key, chunk_size=5242880):
|
||||
def upload_file(self, file_path, api_host, api_key, chunk_size=5242880, need_rescan=False):
|
||||
try:
|
||||
self._init_session(api_host, api_key)
|
||||
sha256 = self.calc_hash(file_path)
|
||||
@@ -750,9 +750,16 @@ class cloud_scanner:
|
||||
return False, None
|
||||
|
||||
status_req = self._request("GET", f"/api/processing_status/{sha256}")
|
||||
if status_req and status_req.json().get('status') != 'missing':
|
||||
self.rescan(sha256, api_host, api_key)
|
||||
return True, sha256
|
||||
if status_req:
|
||||
status_data = status_req.json()
|
||||
current_status = status_data.get('status')
|
||||
|
||||
if current_status == 'done':
|
||||
if need_rescan:
|
||||
self.rescan(sha256, api_host, api_key)
|
||||
return True, sha256
|
||||
elif current_status in ('queued', 'processing'):
|
||||
return True, sha256
|
||||
|
||||
file_size = os.path.getsize(file_path)
|
||||
if file_size > 104857600:
|
||||
|
||||
+1
-1
@@ -2,7 +2,7 @@ import pyinstaller_versionfile
|
||||
|
||||
pyinstaller_versionfile.create_versionfile(
|
||||
output_file="versionfile.txt",
|
||||
version='3.5.1.0',
|
||||
version='3.5.2.0',
|
||||
company_name="PYAS Security",
|
||||
file_description="PYAS Security Antivirus",
|
||||
internal_name="PYAS",
|
||||
|
||||
@@ -114,8 +114,8 @@ typedef struct _DRIVER_DATA {
|
||||
PEPROCESS PyasProcess;
|
||||
ULONG PyasPid;
|
||||
LARGE_INTEGER Cookie;
|
||||
FAST_MUTEX PortMutex;
|
||||
FAST_MUTEX TrackerMutex;
|
||||
KSPIN_LOCK PortMutex;
|
||||
KSPIN_LOCK TrackerMutex;
|
||||
EX_RUNDOWN_REF PortRundown;
|
||||
} DRIVER_DATA, * PDRIVER_DATA;
|
||||
|
||||
|
||||
@@ -90,7 +90,8 @@ static NTSTATUS PortConnect(PFLT_PORT ClientPort, PVOID ServerPortCookie, PVOID
|
||||
UNREFERENCED_PARAMETER(SizeOfContext);
|
||||
UNREFERENCED_PARAMETER(ConnectionPortCookie);
|
||||
|
||||
ExAcquireFastMutex(&GlobalData.PortMutex);
|
||||
KIRQL OldIrql;
|
||||
KeAcquireSpinLock(&GlobalData.PortMutex, &OldIrql);
|
||||
|
||||
GlobalData.ClientPort = ClientPort;
|
||||
GlobalData.PyasPid = (ULONG)(ULONG_PTR)PsGetCurrentProcessId();
|
||||
@@ -98,7 +99,7 @@ static NTSTATUS PortConnect(PFLT_PORT ClientPort, PVOID ServerPortCookie, PVOID
|
||||
|
||||
ExReInitializeRundownProtection(&GlobalData.PortRundown);
|
||||
|
||||
ExReleaseFastMutex(&GlobalData.PortMutex);
|
||||
KeReleaseSpinLock(&GlobalData.PortMutex, OldIrql);
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
@@ -106,9 +107,14 @@ static NTSTATUS PortConnect(PFLT_PORT ClientPort, PVOID ServerPortCookie, PVOID
|
||||
static VOID PortDisconnect(PVOID ConnectionCookie) {
|
||||
UNREFERENCED_PARAMETER(ConnectionCookie);
|
||||
|
||||
ExAcquireFastMutex(&GlobalData.PortMutex);
|
||||
KIRQL OldIrql;
|
||||
KeAcquireSpinLock(&GlobalData.PortMutex, &OldIrql);
|
||||
|
||||
GlobalData.ClientPort = NULL;
|
||||
ExReleaseFastMutex(&GlobalData.PortMutex);
|
||||
GlobalData.PyasPid = 0;
|
||||
GlobalData.PyasProcess = NULL;
|
||||
|
||||
KeReleaseSpinLock(&GlobalData.PortMutex, OldIrql);
|
||||
|
||||
ExWaitForRundownProtectionRelease(&GlobalData.PortRundown);
|
||||
}
|
||||
@@ -147,8 +153,8 @@ extern "C" NTSTATUS DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING Reg
|
||||
|
||||
RtlZeroMemory(&GlobalData, sizeof(GlobalData));
|
||||
GlobalData.DriverObject = DriverObject;
|
||||
ExInitializeFastMutex(&GlobalData.PortMutex);
|
||||
ExInitializeFastMutex(&GlobalData.TrackerMutex);
|
||||
KeInitializeSpinLock(&GlobalData.PortMutex);
|
||||
KeInitializeSpinLock(&GlobalData.TrackerMutex);
|
||||
|
||||
ExInitializeRundownProtection(&GlobalData.PortRundown);
|
||||
|
||||
|
||||
@@ -199,6 +199,7 @@ FLT_PREOP_CALLBACK_STATUS ProtectFile_PreWrite(PFLT_CALLBACK_DATA Data, PCFLT_RE
|
||||
UNREFERENCED_PARAMETER(FltObjects);
|
||||
|
||||
if (Data->RequestorMode == KernelMode) return FLT_PREOP_SUCCESS_NO_CALLBACK;
|
||||
if (KeGetCurrentIrql() > APC_LEVEL) 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;
|
||||
@@ -235,12 +236,10 @@ FLT_PREOP_CALLBACK_STATUS ProtectFile_PreWrite(PFLT_CALLBACK_DATA Data, PCFLT_RE
|
||||
SystemBuffer = MmGetSystemAddressForMdlSafe(Mdl, NormalPagePriority | MdlMappingNoExecute);
|
||||
}
|
||||
|
||||
if (SystemBuffer) {
|
||||
if (CheckRansomActivity(Pid, &nameInfo->Name, SystemBuffer, WriteLength, TRUE)) {
|
||||
SendMessageToUser(5001, (ULONG)(ULONG_PTR)Pid, nameInfo->Name.Buffer, nameInfo->Name.Length);
|
||||
Data->IoStatus.Status = STATUS_ACCESS_DENIED;
|
||||
callbackStatus = FLT_PREOP_COMPLETE;
|
||||
}
|
||||
if (CheckRansomActivity(Pid, &nameInfo->Name, SystemBuffer, WriteLength, TRUE)) {
|
||||
SendMessageToUser(5001, (ULONG)(ULONG_PTR)Pid, nameInfo->Name.Buffer, nameInfo->Name.Length);
|
||||
Data->IoStatus.Status = STATUS_ACCESS_DENIED;
|
||||
callbackStatus = FLT_PREOP_COMPLETE;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -34,6 +34,36 @@ VOID ImageLoadNotify(PUNICODE_STRING FullImageName, HANDLE ProcessId, PIMAGE_INF
|
||||
}
|
||||
}
|
||||
|
||||
static BOOLEAN IsCriticalSystemProcess(HANDLE ProcessId) {
|
||||
if (ProcessId == (HANDLE)4) return TRUE;
|
||||
|
||||
if (KeGetCurrentIrql() != PASSIVE_LEVEL) return FALSE;
|
||||
|
||||
NTSTATUS status;
|
||||
BOOLEAN isCritical = 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 && imageFileName->Buffer) {
|
||||
if (WildcardMatch(L"*\\Windows\\System32\\csrss.exe", imageFileName->Buffer, imageFileName->Length) ||
|
||||
WildcardMatch(L"*\\Windows\\System32\\lsass.exe", imageFileName->Buffer, imageFileName->Length) ||
|
||||
WildcardMatch(L"*\\Windows\\System32\\services.exe", imageFileName->Buffer, imageFileName->Length) ||
|
||||
WildcardMatch(L"*\\Windows\\System32\\wininit.exe", imageFileName->Buffer, imageFileName->Length) ||
|
||||
WildcardMatch(L"*\\Windows\\System32\\smss.exe", imageFileName->Buffer, imageFileName->Length)) {
|
||||
isCritical = TRUE;
|
||||
}
|
||||
ExFreePool(imageFileName);
|
||||
}
|
||||
|
||||
ObDereferenceObject(Process);
|
||||
return isCritical;
|
||||
}
|
||||
|
||||
static BOOLEAN IsBlacklistedAdminTool(HANDLE ProcessId) {
|
||||
if (KeGetCurrentIrql() != PASSIVE_LEVEL) return FALSE;
|
||||
|
||||
@@ -79,6 +109,8 @@ static OB_PREOP_CALLBACK_STATUS PreOpenProcess(PVOID RegistrationContext, POB_PR
|
||||
if (SourcePid == (HANDLE)4) return OB_PREOP_SUCCESS;
|
||||
|
||||
if (IsTargetProtected(TargetPid)) {
|
||||
if (IsCriticalSystemProcess(SourcePid)) return OB_PREOP_SUCCESS;
|
||||
|
||||
BOOLEAN bIsTrusted = IsProcessTrusted(SourcePid);
|
||||
|
||||
if (bIsTrusted) {
|
||||
@@ -99,10 +131,10 @@ static OB_PREOP_CALLBACK_STATUS PreOpenProcess(PVOID RegistrationContext, POB_PR
|
||||
PROCESS_SET_INFORMATION |
|
||||
PROCESS_SET_QUOTA;
|
||||
|
||||
OperationInformation->Parameters->CreateHandleInformation.DesiredAccess &= ~DenyMask;
|
||||
OperationInformation->Parameters->CreateHandleInformation.DesiredAccess &= (ACCESS_MASK)(~DenyMask);
|
||||
|
||||
if (OperationInformation->Operation == OB_OPERATION_HANDLE_DUPLICATE) {
|
||||
OperationInformation->Parameters->DuplicateHandleInformation.DesiredAccess &= ~DenyMask;
|
||||
OperationInformation->Parameters->DuplicateHandleInformation.DesiredAccess &= (ACCESS_MASK)(~DenyMask);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -128,6 +160,8 @@ static OB_PREOP_CALLBACK_STATUS PreOpenThread(PVOID RegistrationContext, POB_PRE
|
||||
if (SourcePid == (HANDLE)4) return OB_PREOP_SUCCESS;
|
||||
|
||||
if (IsTargetProtected(TargetPid)) {
|
||||
if (IsCriticalSystemProcess(SourcePid)) return OB_PREOP_SUCCESS;
|
||||
|
||||
BOOLEAN bIsTrusted = IsProcessTrusted(SourcePid);
|
||||
|
||||
if (bIsTrusted) {
|
||||
@@ -144,10 +178,10 @@ static OB_PREOP_CALLBACK_STATUS PreOpenThread(PVOID RegistrationContext, POB_PRE
|
||||
THREAD_SET_INFORMATION |
|
||||
THREAD_SET_THREAD_TOKEN;
|
||||
|
||||
OperationInformation->Parameters->CreateHandleInformation.DesiredAccess &= ~DenyMask;
|
||||
OperationInformation->Parameters->CreateHandleInformation.DesiredAccess &= (ACCESS_MASK)(~DenyMask);
|
||||
|
||||
if (OperationInformation->Operation == OB_OPERATION_HANDLE_DUPLICATE) {
|
||||
OperationInformation->Parameters->DuplicateHandleInformation.DesiredAccess &= ~DenyMask;
|
||||
OperationInformation->Parameters->DuplicateHandleInformation.DesiredAccess &= (ACCESS_MASK)(~DenyMask);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -149,30 +149,32 @@ static NTSTATUS RegistryCallback(PVOID CallbackContext, PVOID Argument1, PVOID A
|
||||
(Info->ValueName ? Info->ValueName->Length : 0) +
|
||||
sizeof(WCHAR);
|
||||
|
||||
PWCHAR Buffer = (PWCHAR)PyasAllocate(FullSize);
|
||||
if (Buffer) {
|
||||
UNICODE_STRING FullPath;
|
||||
FullPath.Buffer = Buffer;
|
||||
FullPath.Length = 0;
|
||||
FullPath.MaximumLength = (USHORT)FullSize;
|
||||
if (FullSize <= 0xFFFF) {
|
||||
PWCHAR Buffer = (PWCHAR)PyasAllocate(FullSize);
|
||||
if (Buffer) {
|
||||
UNICODE_STRING FullPath;
|
||||
FullPath.Buffer = Buffer;
|
||||
FullPath.Length = 0;
|
||||
FullPath.MaximumLength = (USHORT)FullSize;
|
||||
|
||||
RtlCopyUnicodeString(&FullPath, KeyName);
|
||||
RtlCopyUnicodeString(&FullPath, KeyName);
|
||||
|
||||
if (Info->ValueName && Info->ValueName->Length > 0) {
|
||||
if (FullPath.Length > 0 && FullPath.Buffer[(FullPath.Length / sizeof(WCHAR)) - 1] != L'\\') {
|
||||
RtlAppendUnicodeToString(&FullPath, L"\\");
|
||||
if (Info->ValueName && Info->ValueName->Length > 0) {
|
||||
if (FullPath.Length > 0 && FullPath.Buffer[(FullPath.Length / sizeof(WCHAR)) - 1] != L'\\') {
|
||||
RtlAppendUnicodeToString(&FullPath, L"\\");
|
||||
}
|
||||
RtlAppendUnicodeStringToString(&FullPath, Info->ValueName);
|
||||
}
|
||||
RtlAppendUnicodeStringToString(&FullPath, Info->ValueName);
|
||||
}
|
||||
|
||||
if (CheckRegistryRule(&FullPath)) {
|
||||
HANDLE Pid = PsGetCurrentProcessId();
|
||||
if (!IsProcessTrusted(Pid)) {
|
||||
SendMessageToUser(3001, (ULONG)(ULONG_PTR)Pid, FullPath.Buffer, FullPath.Length);
|
||||
status = STATUS_ACCESS_DENIED;
|
||||
if (CheckRegistryRule(&FullPath)) {
|
||||
HANDLE Pid = PsGetCurrentProcessId();
|
||||
if (!IsProcessTrusted(Pid)) {
|
||||
SendMessageToUser(3001, (ULONG)(ULONG_PTR)Pid, FullPath.Buffer, FullPath.Length);
|
||||
status = STATUS_ACCESS_DENIED;
|
||||
}
|
||||
}
|
||||
PyasFree(Buffer);
|
||||
}
|
||||
PyasFree(Buffer);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -194,30 +196,32 @@ static NTSTATUS RegistryCallback(PVOID CallbackContext, PVOID Argument1, PVOID A
|
||||
(Info->ValueName ? Info->ValueName->Length : 0) +
|
||||
sizeof(WCHAR);
|
||||
|
||||
PWCHAR Buffer = (PWCHAR)PyasAllocate(FullSize);
|
||||
if (Buffer) {
|
||||
UNICODE_STRING FullPath;
|
||||
FullPath.Buffer = Buffer;
|
||||
FullPath.Length = 0;
|
||||
FullPath.MaximumLength = (USHORT)FullSize;
|
||||
if (FullSize <= 0xFFFF) {
|
||||
PWCHAR Buffer = (PWCHAR)PyasAllocate(FullSize);
|
||||
if (Buffer) {
|
||||
UNICODE_STRING FullPath;
|
||||
FullPath.Buffer = Buffer;
|
||||
FullPath.Length = 0;
|
||||
FullPath.MaximumLength = (USHORT)FullSize;
|
||||
|
||||
RtlCopyUnicodeString(&FullPath, KeyName);
|
||||
RtlCopyUnicodeString(&FullPath, KeyName);
|
||||
|
||||
if (Info->ValueName && Info->ValueName->Length > 0) {
|
||||
if (FullPath.Length > 0 && FullPath.Buffer[(FullPath.Length / sizeof(WCHAR)) - 1] != L'\\') {
|
||||
RtlAppendUnicodeToString(&FullPath, L"\\");
|
||||
if (Info->ValueName && Info->ValueName->Length > 0) {
|
||||
if (FullPath.Length > 0 && FullPath.Buffer[(FullPath.Length / sizeof(WCHAR)) - 1] != L'\\') {
|
||||
RtlAppendUnicodeToString(&FullPath, L"\\");
|
||||
}
|
||||
RtlAppendUnicodeStringToString(&FullPath, Info->ValueName);
|
||||
}
|
||||
RtlAppendUnicodeStringToString(&FullPath, Info->ValueName);
|
||||
}
|
||||
|
||||
if (CheckRegistryRule(&FullPath)) {
|
||||
HANDLE Pid = PsGetCurrentProcessId();
|
||||
if (!IsProcessTrusted(Pid)) {
|
||||
SendMessageToUser(3001, (ULONG)(ULONG_PTR)Pid, FullPath.Buffer, FullPath.Length);
|
||||
status = STATUS_ACCESS_DENIED;
|
||||
if (CheckRegistryRule(&FullPath)) {
|
||||
HANDLE Pid = PsGetCurrentProcessId();
|
||||
if (!IsProcessTrusted(Pid)) {
|
||||
SendMessageToUser(3001, (ULONG)(ULONG_PTR)Pid, FullPath.Buffer, FullPath.Length);
|
||||
status = STATUS_ACCESS_DENIED;
|
||||
}
|
||||
}
|
||||
PyasFree(Buffer);
|
||||
}
|
||||
PyasFree(Buffer);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
+169
-96
@@ -10,19 +10,21 @@ constexpr auto TRUST_CACHE_TTL_SEC = 300;
|
||||
|
||||
typedef struct _RANSOM_TRACKER {
|
||||
PEPROCESS Process;
|
||||
LARGE_INTEGER ProcessCreateTime;
|
||||
ULONG ActivityCount;
|
||||
LARGE_INTEGER LastActivityTime;
|
||||
} RANSOM_TRACKER, * PRANSOM_TRACKER;
|
||||
|
||||
typedef struct _TRUST_CACHE_ENTRY {
|
||||
PEPROCESS Process;
|
||||
LARGE_INTEGER ProcessCreateTime;
|
||||
BOOLEAN IsTrusted;
|
||||
LARGE_INTEGER CacheTime;
|
||||
} TRUST_CACHE_ENTRY, * PTRUST_CACHE_ENTRY;
|
||||
|
||||
static RANSOM_TRACKER RansomTrackers[MAX_TRACKERS];
|
||||
static TRUST_CACHE_ENTRY TrustCache[TRUST_CACHE_SIZE];
|
||||
static FAST_MUTEX TrustCacheLock;
|
||||
static KSPIN_LOCK TrustCacheLock;
|
||||
static BOOLEAN g_CacheInitialized = FALSE;
|
||||
|
||||
static ERESOURCE RuleLock;
|
||||
@@ -107,7 +109,7 @@ static BOOLEAN HasSuffix(PCUNICODE_STRING String, PCWSTR Suffix) {
|
||||
}
|
||||
|
||||
BOOLEAN WildcardMatch(PCWSTR Pattern, PCWSTR String, USHORT StringLengthBytes) {
|
||||
if (!Pattern || !String) return FALSE;
|
||||
if (Pattern == NULL || String == NULL) return FALSE;
|
||||
|
||||
USHORT StringLenChars = StringLengthBytes / sizeof(WCHAR);
|
||||
PCWSTR mp = NULL;
|
||||
@@ -123,7 +125,7 @@ BOOLEAN WildcardMatch(PCWSTR Pattern, PCWSTR String, USHORT StringLengthBytes) {
|
||||
Pattern++;
|
||||
String++;
|
||||
}
|
||||
else if (mp) {
|
||||
else if (mp != NULL) {
|
||||
Pattern = mp;
|
||||
String = cp++;
|
||||
}
|
||||
@@ -134,7 +136,8 @@ BOOLEAN WildcardMatch(PCWSTR Pattern, PCWSTR String, USHORT StringLengthBytes) {
|
||||
while (*Pattern == L'*') {
|
||||
Pattern++;
|
||||
}
|
||||
return !*Pattern;
|
||||
|
||||
return (*Pattern == L'\0') ? TRUE : FALSE;
|
||||
}
|
||||
|
||||
static ULONG ProcessJsonUnescape(PWCHAR Buffer, ULONG LengthChars) {
|
||||
@@ -202,17 +205,23 @@ static VOID ParseAndLoadRules(PCHAR JsonContent, ULONG ContentLength, PCSTR KeyN
|
||||
|
||||
while (Ptr < End) {
|
||||
SkipWhitespace(&Ptr, End);
|
||||
if (Ptr >= End) break;
|
||||
|
||||
if (*Ptr == ']') {
|
||||
Ptr++;
|
||||
if (Ptr >= End || *Ptr == ']') {
|
||||
if (Ptr < End) Ptr++;
|
||||
return;
|
||||
}
|
||||
|
||||
if (*Ptr == '"') {
|
||||
PCHAR StartQuote = ++Ptr;
|
||||
BOOLEAN Escaped = FALSE;
|
||||
|
||||
while (Ptr < End) {
|
||||
if (*Ptr == '"' && *(Ptr - 1) != '\\') break;
|
||||
if (*Ptr == '"' && Escaped == FALSE) break;
|
||||
if (*Ptr == '\\') {
|
||||
Escaped = (Escaped == FALSE) ? TRUE : FALSE;
|
||||
}
|
||||
else {
|
||||
Escaped = FALSE;
|
||||
}
|
||||
Ptr++;
|
||||
}
|
||||
|
||||
@@ -242,9 +251,6 @@ static VOID ParseAndLoadRules(PCHAR JsonContent, ULONG ContentLength, PCSTR KeyN
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
else if (*Ptr == ',') {
|
||||
Ptr++;
|
||||
}
|
||||
else {
|
||||
Ptr++;
|
||||
}
|
||||
@@ -259,7 +265,7 @@ static VOID ParseAndLoadRules(PCHAR JsonContent, ULONG ContentLength, PCSTR KeyN
|
||||
|
||||
VOID InitializeRulesEngine() {
|
||||
ExInitializeResourceLite(&RuleLock);
|
||||
ExInitializeFastMutex(&TrustCacheLock);
|
||||
KeInitializeSpinLock(&TrustCacheLock);
|
||||
RtlZeroMemory(TrustCache, sizeof(TrustCache));
|
||||
g_CacheInitialized = TRUE;
|
||||
}
|
||||
@@ -298,25 +304,33 @@ static VOID RemoveRule(PRULE_NODE* Head, PUNICODE_STRING RuleStr) {
|
||||
}
|
||||
|
||||
VOID AddDynamicWhitelist(PUNICODE_STRING RuleStr) {
|
||||
KeEnterCriticalRegion();
|
||||
ExAcquireResourceExclusiveLite(&RuleLock, TRUE);
|
||||
AddRule(&g_ProcessTrustedPaths, RuleStr);
|
||||
AddRule(&g_FileExceptionPaths, RuleStr);
|
||||
|
||||
ExAcquireFastMutex(&TrustCacheLock);
|
||||
KIRQL OldIrql;
|
||||
KeAcquireSpinLock(&TrustCacheLock, &OldIrql);
|
||||
RtlZeroMemory(TrustCache, sizeof(TrustCache));
|
||||
ExReleaseFastMutex(&TrustCacheLock);
|
||||
KeReleaseSpinLock(&TrustCacheLock, OldIrql);
|
||||
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
}
|
||||
|
||||
VOID RemoveDynamicWhitelist(PUNICODE_STRING RuleStr) {
|
||||
KeEnterCriticalRegion();
|
||||
ExAcquireResourceExclusiveLite(&RuleLock, TRUE);
|
||||
RemoveRule(&g_ProcessTrustedPaths, RuleStr);
|
||||
RemoveRule(&g_FileExceptionPaths, RuleStr);
|
||||
|
||||
ExAcquireFastMutex(&TrustCacheLock);
|
||||
KIRQL OldIrql;
|
||||
KeAcquireSpinLock(&TrustCacheLock, &OldIrql);
|
||||
RtlZeroMemory(TrustCache, sizeof(TrustCache));
|
||||
ExReleaseFastMutex(&TrustCacheLock);
|
||||
KeReleaseSpinLock(&TrustCacheLock, OldIrql);
|
||||
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
}
|
||||
|
||||
NTSTATUS LoadRulesFromDisk(PUNICODE_STRING RegistryPath) {
|
||||
@@ -359,58 +373,58 @@ NTSTATUS LoadRulesFromDisk(PUNICODE_STRING RegistryPath) {
|
||||
}
|
||||
|
||||
if (Info->Type == REG_EXPAND_SZ || Info->Type == REG_SZ) {
|
||||
PathBufferSize = ResultLength + 1024;
|
||||
PathBufferSize = Info->DataLength + 1024;
|
||||
PathBuffer = (PWCHAR)PyasAllocate(PathBufferSize);
|
||||
|
||||
if (PathBuffer) {
|
||||
RtlZeroMemory(PathBuffer, PathBufferSize);
|
||||
PWCHAR Src = (PWCHAR)Info->Data;
|
||||
if (Info->DataLength > 0) {
|
||||
RtlCopyMemory(PathBuffer, Info->Data, Info->DataLength);
|
||||
}
|
||||
|
||||
if (NT_SUCCESS(RtlStringCbCopyW(PathBuffer, PathBufferSize, Src))) {
|
||||
PWCHAR LastSlash = NULL;
|
||||
PWCHAR Current = PathBuffer;
|
||||
while (*Current) {
|
||||
if (*Current == L'\\') LastSlash = Current;
|
||||
Current++;
|
||||
}
|
||||
PWCHAR LastSlash = NULL;
|
||||
PWCHAR Current = PathBuffer;
|
||||
while (*Current) {
|
||||
if (*Current == L'\\') LastSlash = Current;
|
||||
Current++;
|
||||
}
|
||||
|
||||
if (LastSlash) {
|
||||
*LastSlash = L'\0';
|
||||
if (LastSlash) {
|
||||
*LastSlash = L'\0';
|
||||
|
||||
SIZE_T CurrentPathLen = wcslen(PathBuffer);
|
||||
const WCHAR FilterSuffix[] = L"\\Filter";
|
||||
SIZE_T FilterLen = (sizeof(FilterSuffix) / sizeof(WCHAR)) - 1;
|
||||
SIZE_T CurrentPathLen = wcslen(PathBuffer);
|
||||
const WCHAR FilterSuffix[] = L"\\Filter";
|
||||
SIZE_T FilterLen = (sizeof(FilterSuffix) / sizeof(WCHAR)) - 1;
|
||||
|
||||
if (CurrentPathLen >= FilterLen) {
|
||||
PWCHAR SuffixStart = PathBuffer + CurrentPathLen - FilterLen;
|
||||
BOOLEAN Match = TRUE;
|
||||
for (SIZE_T i = 0; i < FilterLen; i++) {
|
||||
if (RtlDowncaseUnicodeChar(SuffixStart[i]) != RtlDowncaseUnicodeChar(FilterSuffix[i])) {
|
||||
Match = FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (Match) {
|
||||
*SuffixStart = L'\0';
|
||||
if (CurrentPathLen >= FilterLen) {
|
||||
PWCHAR SuffixStart = PathBuffer + CurrentPathLen - FilterLen;
|
||||
BOOLEAN Match = TRUE;
|
||||
for (SIZE_T i = 0; i < FilterLen; i++) {
|
||||
if (RtlDowncaseUnicodeChar(SuffixStart[i]) != RtlDowncaseUnicodeChar(FilterSuffix[i])) {
|
||||
Match = FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
RtlStringCbCatW(PathBuffer, PathBufferSize, L"\\Rules\\Rules_Driver_P1.json");
|
||||
|
||||
if (wcsncmp(PathBuffer, L"\\??\\", 4) != 0 &&
|
||||
wcsncmp(PathBuffer, L"\\SystemRoot", 11) != 0 &&
|
||||
wcsncmp(PathBuffer, L"\\DosDevices\\", 12) != 0) {
|
||||
|
||||
PWCHAR TmpBuffer = (PWCHAR)PyasAllocate(PathBufferSize + 16);
|
||||
if (TmpBuffer) {
|
||||
RtlStringCbCopyW(TmpBuffer, PathBufferSize + 16, L"\\??\\");
|
||||
RtlStringCbCatW(TmpBuffer, PathBufferSize + 16, PathBuffer);
|
||||
PyasFree(PathBuffer);
|
||||
PathBuffer = TmpBuffer;
|
||||
}
|
||||
if (Match) {
|
||||
*SuffixStart = L'\0';
|
||||
}
|
||||
RtlInitUnicodeString(&FinalPath, PathBuffer);
|
||||
}
|
||||
|
||||
RtlStringCbCatW(PathBuffer, PathBufferSize, L"\\Rules\\Rules_Driver_P1.json");
|
||||
|
||||
if (wcsncmp(PathBuffer, L"\\??\\", 4) != 0 &&
|
||||
wcsncmp(PathBuffer, L"\\SystemRoot", 11) != 0 &&
|
||||
wcsncmp(PathBuffer, L"\\DosDevices\\", 12) != 0) {
|
||||
|
||||
PWCHAR TmpBuffer = (PWCHAR)PyasAllocate(PathBufferSize + 16);
|
||||
if (TmpBuffer) {
|
||||
RtlStringCbCopyW(TmpBuffer, PathBufferSize + 16, L"\\??\\");
|
||||
RtlStringCbCatW(TmpBuffer, PathBufferSize + 16, PathBuffer);
|
||||
PyasFree(PathBuffer);
|
||||
PathBuffer = TmpBuffer;
|
||||
}
|
||||
}
|
||||
RtlInitUnicodeString(&FinalPath, PathBuffer);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -435,6 +449,7 @@ NTSTATUS LoadRulesFromDisk(PUNICODE_STRING RegistryPath) {
|
||||
if (NT_SUCCESS(status)) {
|
||||
((PCHAR)FileBuffer)[FileInfo.EndOfFile.LowPart] = '\0';
|
||||
|
||||
KeEnterCriticalRegion();
|
||||
ExAcquireResourceExclusiveLite(&RuleLock, TRUE);
|
||||
ParseAndLoadRules((PCHAR)FileBuffer, FileInfo.EndOfFile.LowPart, "Rule_Registry_BlockList", &g_RegistryBlockList);
|
||||
ParseAndLoadRules((PCHAR)FileBuffer, FileInfo.EndOfFile.LowPart, "Rule_Registry_TrustedList", &g_RegistryTrustedList);
|
||||
@@ -444,6 +459,7 @@ NTSTATUS LoadRulesFromDisk(PUNICODE_STRING RegistryPath) {
|
||||
ParseAndLoadRules((PCHAR)FileBuffer, FileInfo.EndOfFile.LowPart, "Rule_File_ExceptionPaths", &g_FileExceptionPaths);
|
||||
ParseAndLoadRules((PCHAR)FileBuffer, FileInfo.EndOfFile.LowPart, "Rule_File_RansomwareExtensions", &g_FileRansomExts);
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
}
|
||||
PyasFree(FileBuffer);
|
||||
}
|
||||
@@ -456,6 +472,7 @@ NTSTATUS LoadRulesFromDisk(PUNICODE_STRING RegistryPath) {
|
||||
}
|
||||
|
||||
VOID UnloadRules() {
|
||||
KeEnterCriticalRegion();
|
||||
ExAcquireResourceExclusiveLite(&RuleLock, TRUE);
|
||||
FreeList(&g_RegistryBlockList);
|
||||
FreeList(&g_RegistryTrustedList);
|
||||
@@ -465,9 +482,14 @@ VOID UnloadRules() {
|
||||
FreeList(&g_FileExceptionPaths);
|
||||
FreeList(&g_FileRansomExts);
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
}
|
||||
|
||||
NTSTATUS GetProcessImageName(HANDLE ProcessId, PUNICODE_STRING* ImageName) {
|
||||
if (KeGetCurrentIrql() != PASSIVE_LEVEL) {
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
}
|
||||
|
||||
NTSTATUS status;
|
||||
PEPROCESS Process = NULL;
|
||||
|
||||
@@ -492,33 +514,42 @@ BOOLEAN IsProcessTrusted(HANDLE ProcessId) {
|
||||
if ((ULONG)(ULONG_PTR)ProcessId == GlobalData.PyasPid) return TRUE;
|
||||
if (ProcessId == (HANDLE)4) return TRUE;
|
||||
|
||||
if (KeGetCurrentIrql() != PASSIVE_LEVEL) return FALSE;
|
||||
|
||||
PEPROCESS Process = NULL;
|
||||
if (!NT_SUCCESS(PsLookupProcessByProcessId(ProcessId, &Process))) {
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
LARGE_INTEGER createTime;
|
||||
createTime.QuadPart = PsGetProcessCreateTimeQuadPart(Process);
|
||||
|
||||
if (g_CacheInitialized) {
|
||||
ExAcquireFastMutex(&TrustCacheLock);
|
||||
KIRQL OldIrql;
|
||||
KeAcquireSpinLock(&TrustCacheLock, &OldIrql);
|
||||
ULONG Hash = ((ULONG)(ULONG_PTR)ProcessId) & (TRUST_CACHE_SIZE - 1);
|
||||
if (TrustCache[Hash].Process == Process) {
|
||||
|
||||
if (TrustCache[Hash].Process == Process && TrustCache[Hash].ProcessCreateTime.QuadPart == createTime.QuadPart) {
|
||||
LARGE_INTEGER Now;
|
||||
KeQuerySystemTime(&Now);
|
||||
if ((Now.QuadPart - TrustCache[Hash].CacheTime.QuadPart) < (TRUST_CACHE_TTL_SEC * 10000000LL)) {
|
||||
BOOLEAN cachedResult = TrustCache[Hash].IsTrusted;
|
||||
ExReleaseFastMutex(&TrustCacheLock);
|
||||
KeReleaseSpinLock(&TrustCacheLock, OldIrql);
|
||||
ObDereferenceObject(Process);
|
||||
return cachedResult;
|
||||
}
|
||||
}
|
||||
ExReleaseFastMutex(&TrustCacheLock);
|
||||
KeReleaseSpinLock(&TrustCacheLock, OldIrql);
|
||||
}
|
||||
|
||||
if (KeGetCurrentIrql() != PASSIVE_LEVEL) {
|
||||
ObDereferenceObject(Process);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
PUNICODE_STRING imageFileName = NULL;
|
||||
NTSTATUS status = GetProcessImageName(ProcessId, &imageFileName);
|
||||
BOOLEAN isTrusted = FALSE;
|
||||
|
||||
KeEnterCriticalRegion();
|
||||
ExAcquireResourceSharedLite(&RuleLock, TRUE);
|
||||
|
||||
if (NT_SUCCESS(status) && imageFileName && imageFileName->Buffer) {
|
||||
@@ -547,15 +578,18 @@ BOOLEAN IsProcessTrusted(HANDLE ProcessId) {
|
||||
|
||||
update_cache:
|
||||
if (g_CacheInitialized) {
|
||||
ExAcquireFastMutex(&TrustCacheLock);
|
||||
KIRQL OldIrql;
|
||||
KeAcquireSpinLock(&TrustCacheLock, &OldIrql);
|
||||
ULONG Hash = ((ULONG)(ULONG_PTR)ProcessId) & (TRUST_CACHE_SIZE - 1);
|
||||
TrustCache[Hash].Process = Process;
|
||||
TrustCache[Hash].ProcessCreateTime = createTime;
|
||||
TrustCache[Hash].IsTrusted = isTrusted;
|
||||
KeQuerySystemTime(&TrustCache[Hash].CacheTime);
|
||||
ExReleaseFastMutex(&TrustCacheLock);
|
||||
KeReleaseSpinLock(&TrustCacheLock, OldIrql);
|
||||
}
|
||||
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
|
||||
if (imageFileName) ExFreePool(imageFileName);
|
||||
ObDereferenceObject(Process);
|
||||
@@ -575,12 +609,14 @@ BOOLEAN CheckRegistryRule(PCUNICODE_STRING KeyName) {
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
KeEnterCriticalRegion();
|
||||
ExAcquireResourceSharedLite(&RuleLock, TRUE);
|
||||
|
||||
PRULE_NODE AllowNode = g_RegistryTrustedList;
|
||||
while (AllowNode) {
|
||||
if (WildcardMatch(AllowNode->Pattern.Buffer, KeyName->Buffer, KeyName->Length)) {
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
return FALSE;
|
||||
}
|
||||
AllowNode = AllowNode->Next;
|
||||
@@ -596,18 +632,21 @@ BOOLEAN CheckRegistryRule(PCUNICODE_STRING KeyName) {
|
||||
Node = Node->Next;
|
||||
}
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
return Match;
|
||||
}
|
||||
|
||||
BOOLEAN CheckFileExtensionRule(PCUNICODE_STRING FileName) {
|
||||
if (!FileName || !FileName->Buffer) return FALSE;
|
||||
|
||||
KeEnterCriticalRegion();
|
||||
ExAcquireResourceSharedLite(&RuleLock, TRUE);
|
||||
|
||||
PRULE_NODE ExNode = g_FileExceptionPaths;
|
||||
while (ExNode) {
|
||||
if (WildcardMatch(ExNode->Pattern.Buffer, FileName->Buffer, FileName->Length)) {
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
return FALSE;
|
||||
}
|
||||
ExNode = ExNode->Next;
|
||||
@@ -623,6 +662,7 @@ BOOLEAN CheckFileExtensionRule(PCUNICODE_STRING FileName) {
|
||||
Node = Node->Next;
|
||||
}
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
return Match;
|
||||
}
|
||||
|
||||
@@ -633,12 +673,14 @@ BOOLEAN CheckProtectedPathRule(PCUNICODE_STRING FileName) {
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
KeEnterCriticalRegion();
|
||||
ExAcquireResourceSharedLite(&RuleLock, TRUE);
|
||||
|
||||
PRULE_NODE ExNode = g_FileExceptionPaths;
|
||||
while (ExNode) {
|
||||
if (WildcardMatch(ExNode->Pattern.Buffer, FileName->Buffer, FileName->Length)) {
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
return FALSE;
|
||||
}
|
||||
ExNode = ExNode->Next;
|
||||
@@ -654,13 +696,16 @@ BOOLEAN CheckProtectedPathRule(PCUNICODE_STRING FileName) {
|
||||
Node = Node->Next;
|
||||
}
|
||||
ExReleaseResourceLite(&RuleLock);
|
||||
KeLeaveCriticalRegion();
|
||||
return Match;
|
||||
}
|
||||
|
||||
static BOOLEAN IsHighEntropy(PVOID Buffer, ULONG Length) {
|
||||
if (!Buffer || Length < 256) return FALSE;
|
||||
|
||||
ULONG Histogram[256] = { 0 };
|
||||
PUSHORT Histogram = (PUSHORT)PyasAllocate(256 * sizeof(USHORT));
|
||||
if (!Histogram) return FALSE;
|
||||
|
||||
PUCHAR Ptr = (PUCHAR)Buffer;
|
||||
ULONG ScanLen = (Length > 1024) ? 1024 : Length;
|
||||
|
||||
@@ -670,16 +715,20 @@ static BOOLEAN IsHighEntropy(PVOID Buffer, ULONG Length) {
|
||||
}
|
||||
}
|
||||
__except (EXCEPTION_EXECUTE_HANDLER) {
|
||||
PyasFree(Histogram);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
ULONG MaxFreq = 0;
|
||||
USHORT MaxFreq = 0;
|
||||
for (int i = 0; i < 256; i++) {
|
||||
if (Histogram[i] > MaxFreq) MaxFreq = Histogram[i];
|
||||
}
|
||||
|
||||
ULONG ExpectedAvg = ScanLen / 256;
|
||||
return (MaxFreq < (ExpectedAvg + HIGH_ENTROPY_THRESHOLD));
|
||||
BOOLEAN Result = (MaxFreq < (ExpectedAvg + HIGH_ENTROPY_THRESHOLD));
|
||||
|
||||
PyasFree(Histogram);
|
||||
return Result;
|
||||
}
|
||||
|
||||
static BOOLEAN IsNaturallyCompressed(PCUNICODE_STRING FileName) {
|
||||
@@ -713,14 +762,19 @@ static BOOLEAN IsUserDirectoryPath(PCUNICODE_STRING FileName) {
|
||||
}
|
||||
|
||||
static BOOLEAN IsExplorerProcess(HANDLE ProcessId) {
|
||||
if (KeGetCurrentIrql() != PASSIVE_LEVEL) return FALSE;
|
||||
if (KeGetCurrentIrql() > APC_LEVEL) return FALSE;
|
||||
|
||||
PUNICODE_STRING imageFileName = NULL;
|
||||
NTSTATUS status = GetProcessImageName(ProcessId, &imageFileName);
|
||||
BOOLEAN isExplorer = FALSE;
|
||||
if (NT_SUCCESS(status) && imageFileName && imageFileName->Buffer) {
|
||||
if (HasSuffix(imageFileName, L"\\explorer.exe")) isExplorer = TRUE;
|
||||
|
||||
if (NT_SUCCESS(status) && imageFileName) {
|
||||
if (imageFileName->Buffer && HasSuffix(imageFileName, L"\\explorer.exe")) {
|
||||
isExplorer = TRUE;
|
||||
}
|
||||
ExFreePool(imageFileName);
|
||||
}
|
||||
|
||||
return isExplorer;
|
||||
}
|
||||
|
||||
@@ -755,9 +809,12 @@ BOOLEAN CheckRansomActivity(HANDLE ProcessId, PUNICODE_STRING FileName, PVOID Wr
|
||||
|
||||
LARGE_INTEGER Now = { 0 };
|
||||
KeQuerySystemTime(&Now);
|
||||
LARGE_INTEGER createTime;
|
||||
createTime.QuadPart = PsGetProcessCreateTimeQuadPart(Process);
|
||||
BOOLEAN Result = FALSE;
|
||||
|
||||
ExAcquireFastMutex(&GlobalData.TrackerMutex);
|
||||
KIRQL OldIrql;
|
||||
KeAcquireSpinLock(&GlobalData.TrackerMutex, &OldIrql);
|
||||
|
||||
PRANSOM_TRACKER Tracker = NULL;
|
||||
PRANSOM_TRACKER CandidateSlot = NULL;
|
||||
@@ -770,7 +827,7 @@ BOOLEAN CheckRansomActivity(HANDLE ProcessId, PUNICODE_STRING FileName, PVOID Wr
|
||||
LruSlot = Current;
|
||||
}
|
||||
|
||||
if (Current->Process == Process) {
|
||||
if (Current->Process == Process && Current->ProcessCreateTime.QuadPart == createTime.QuadPart) {
|
||||
Tracker = Current;
|
||||
break;
|
||||
}
|
||||
@@ -798,6 +855,7 @@ BOOLEAN CheckRansomActivity(HANDLE ProcessId, PUNICODE_STRING FileName, PVOID Wr
|
||||
}
|
||||
|
||||
Tracker->Process = Process;
|
||||
Tracker->ProcessCreateTime = createTime;
|
||||
Tracker->ActivityCount = 0;
|
||||
Tracker->LastActivityTime = Now;
|
||||
}
|
||||
@@ -817,7 +875,8 @@ BOOLEAN CheckRansomActivity(HANDLE ProcessId, PUNICODE_STRING FileName, PVOID Wr
|
||||
if (Tracker->ActivityCount >= RANSOM_COUNT_THRESHOLD) {
|
||||
Result = TRUE;
|
||||
}
|
||||
ExReleaseFastMutex(&GlobalData.TrackerMutex);
|
||||
|
||||
KeReleaseSpinLock(&GlobalData.TrackerMutex, OldIrql);
|
||||
ObDereferenceObject(Process);
|
||||
return Result;
|
||||
}
|
||||
@@ -825,34 +884,48 @@ BOOLEAN CheckRansomActivity(HANDLE ProcessId, PUNICODE_STRING FileName, PVOID Wr
|
||||
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);
|
||||
msg.Path[BytesToCopy / sizeof(WCHAR)] = L'\0';
|
||||
}
|
||||
__except (EXCEPTION_EXECUTE_HANDLER) {
|
||||
return STATUS_ACCESS_VIOLATION;
|
||||
}
|
||||
}
|
||||
|
||||
if (!ExAcquireRundownProtection(&GlobalData.PortRundown)) {
|
||||
return STATUS_PORT_DISCONNECTED;
|
||||
}
|
||||
|
||||
NTSTATUS status = STATUS_PORT_DISCONNECTED;
|
||||
|
||||
if (GlobalData.ClientPort) {
|
||||
LARGE_INTEGER timeout;
|
||||
timeout.QuadPart = -(5 * 10000);
|
||||
status = FltSendMessage(GlobalData.FilterHandle, &GlobalData.ClientPort, &msg, sizeof(msg), NULL, NULL, &timeout);
|
||||
PPYAS_MESSAGE msg = (PPYAS_MESSAGE)PyasAllocate(sizeof(PYAS_MESSAGE));
|
||||
if (msg) {
|
||||
msg->MessageCode = Code;
|
||||
msg->ProcessId = Pid;
|
||||
|
||||
if (Path && PathSize > 0) {
|
||||
size_t MaxSize = sizeof(msg->Path) - sizeof(WCHAR);
|
||||
size_t BytesToCopy = PathSize > MaxSize ? MaxSize : PathSize;
|
||||
|
||||
__try {
|
||||
RtlCopyMemory(msg->Path, Path, BytesToCopy);
|
||||
msg->Path[BytesToCopy / sizeof(WCHAR)] = L'\0';
|
||||
}
|
||||
__except (EXCEPTION_EXECUTE_HANDLER) {
|
||||
PyasFree(msg);
|
||||
ExReleaseRundownProtection(&GlobalData.PortRundown);
|
||||
return STATUS_ACCESS_VIOLATION;
|
||||
}
|
||||
}
|
||||
|
||||
LARGE_INTEGER timeout;
|
||||
if (KeGetCurrentIrql() == PASSIVE_LEVEL) {
|
||||
timeout.QuadPart = -(5 * 10000);
|
||||
}
|
||||
else {
|
||||
timeout.QuadPart = 0;
|
||||
}
|
||||
|
||||
status = FltSendMessage(GlobalData.FilterHandle, &GlobalData.ClientPort, msg, sizeof(PYAS_MESSAGE), NULL, NULL, &timeout);
|
||||
|
||||
PyasFree(msg);
|
||||
}
|
||||
else {
|
||||
status = STATUS_INSUFFICIENT_RESOURCES;
|
||||
}
|
||||
}
|
||||
|
||||
ExReleaseRundownProtection(&GlobalData.PortRundown);
|
||||
|
||||
@@ -34,10 +34,6 @@ The following lists the storage locations of all relevant code and other related
|
||||
|
||||
```
|
||||
PYAS/
|
||||
├── Embed/ # Deploy an embedded command line antivirus engine
|
||||
│ ├── Dockerfile
|
||||
│ └── ...
|
||||
│
|
||||
├── Engine/ # Complete code for Yara signatures and AI model training
|
||||
│ ├── Heuristic/
|
||||
│ │ └── ... # Yara Rules
|
||||
|
||||
Reference in new issue
Block a user