Security enhancements and code optimizations.

src/integrity.py

@@ -1,12 +1,18 @@
 import hashlib
 import logging
 
+logger = logging.getLogger(__name__)
+
 def calculate_file_hash(file_path):
     sha256_hash = hashlib.sha256()
-    with open(file_path, "rb") as f:
-        for byte_block in iter(lambda: f.read(4096), b""):
-            sha256_hash.update(byte_block)
-    return sha256_hash.hexdigest()
+    try:
+        with open(file_path, "rb") as f:
+            for byte_block in iter(lambda: f.read(4096), b""):
+                sha256_hash.update(byte_block)
+        return sha256_hash.hexdigest()
+    except IOError:
+        logger.error(f"Unable to read file: {file_path}")
+        return None
 
 def check_file_integrity(file_path):
     known_good_hashes = {
@@ -15,12 +21,15 @@ def check_file_integrity(file_path):
     }
 
     calculated_hash = calculate_file_hash(file_path)
-    logging.info(f"Calculated hash for {file_path}: {calculated_hash}")
+    if calculated_hash is None:
+        return "integrity", False
+
+    logger.info(f"Calculated hash for {file_path}: {calculated_hash}")
 
     for version, known_hash in known_good_hashes.items():
         if calculated_hash == known_hash:
-            logging.info(f"File integrity check passed for version {version}")
-            return True
+            logger.info(f"File integrity check passed for version {version}")
+            return "integrity", True
 
-    logging.warning("File integrity check failed")
-    return False
+    logger.warning("File integrity check failed")
+    return "integrity", False

src/memory_scanner.py

@@ -2,6 +2,8 @@
 import re
 import logging
 
+logger = logging.getLogger(__name__)
+
 def scan_process_memory(process_name):
     suspicious_patterns = [
         rb'CVE-2023-38831',
@@ -21,15 +23,15 @@ def scan_process_memory(process_name):
                         content = process.memory_maps()[0].read(mem.addr, mem.size)
                         for pattern in suspicious_patterns:
                             if re.search(pattern, content):
-                                logging.warning(f"Suspicious pattern found in process memory: {pattern}")
-                                return True
+                                logger.warning(f"Suspicious pattern found in process memory: {pattern}")
+                                return "memory", True
                     except psutil.AccessDenied:
-                        logging.warning(f"Access denied to memory region of process {pid}")
+                        logger.warning(f"Access denied to memory region of process {pid}")
                     except Exception as e:
-                        logging.error(f"Error scanning memory: {str(e)}")
+                        logger.error(f"Error scanning memory: {str(e)}")
             except psutil.NoSuchProcess:
-                logging.error(f"Process {pid} no longer exists")
+                logger.error(f"Process {pid} no longer exists")
             except Exception as e:
-                logging.error(f"Error accessing process {pid}: {str(e)}")
+                logger.error(f"Error accessing process {pid}: {str(e)}")
 
-    return False
+    return "memory", False

src/network_analyzer.py

@@ -1,5 +1,8 @@
 import scapy.all as scapy
 import logging
+from scapy.error import Scapy_Exception
+
+logger = logging.getLogger(__name__)
 
 def analyze_network_traffic(interface, duration=60):
     suspicious_patterns = [
@@ -13,13 +16,15 @@ def packet_callback(packet):
             payload = packet[scapy.Raw].load
             for pattern in suspicious_patterns:
                 if pattern in payload:
-                    logging.warning(f"Suspicious network traffic detected: {pattern}")
+                    logger.warning(f"Suspicious network traffic detected: {pattern}")
                     return True
         return False
 
     try:
         scapy.sniff(iface=interface, prn=packet_callback, timeout=duration)
+    except Scapy_Exception as e:
+        logger.error(f"Scapy error during network traffic analysis: {str(e)}")
     except Exception as e:
-        logging.error(f"Error during network traffic analysis: {str(e)}")
+        logger.error(f"Error during network traffic analysis: {str(e)}")
 
-    return False
+    return "network", False

src/sandbox.py

@@ -4,37 +4,40 @@
 import shutil
 import logging
 
+logger = logging.getLogger(__name__)
+
 class Sandbox:
     def __init__(self):
         self.temp_dir = None
 
     def __enter__(self):
         self.temp_dir = tempfile.mkdtemp()
-        logging.info(f"Created sandbox environment in {self.temp_dir}")
+        logger.info(f"Created sandbox environment in {self.temp_dir}")
         return self
 
     def __exit__(self, exc_type, exc_val, exc_tb):
         if self.temp_dir:
             shutil.rmtree(self.temp_dir)
-            logging.info(f"Removed sandbox environment {self.temp_dir}")
+            logger.info(f"Removed sandbox environment {self.temp_dir}")
 
     def run_command(self, command):
         try:
             result = subprocess.run(command, cwd=self.temp_dir, capture_output=True, text=True, timeout=30)
-            logging.info(f"Command executed in sandbox: {command}")
+            logger.info(f"Command executed in sandbox: {command}")
             return result.returncode, result.stdout, result.stderr
         except subprocess.TimeoutExpired:
-            logging.warning(f"Command timed out in sandbox: {command}")
+            logger.warning(f"Command timed out in sandbox: {command}")
             return -1, "", "Timeout"
         except Exception as e:
-            logging.error(f"Error running command in sandbox: {str(e)}")
+            logger.error(f"Error running command in sandbox: {str(e)}")
             return -1, "", str(e)
 
     def copy_file_to_sandbox(self, file_path):
         try:
-            shutil.copy(file_path, self.temp_dir)
-            logging.info(f"Copied {file_path} to sandbox")
-            return os.path.join(self.temp_dir, os.path.basename(file_path))
+            dest_path = os.path.join(self.temp_dir, os.path.basename(file_path))
+            shutil.copy2(file_path, dest_path)
+            logger.info(f"Copied {file_path} to sandbox")
+            return dest_path
         except Exception as e:
-            logging.error(f"Error copying file to sandbox: {str(e)}")
+            logger.error(f"Error copying file to sandbox: {str(e)}")
             return None

src/scanner.py

@@ -1,62 +1,77 @@
 import os
 import winreg
 import logging
+from concurrent.futures import ThreadPoolExecutor, as_completed
 from .utils import get_winrar_path
 from .report import generate_report
 from .integrity import check_file_integrity
 from .memory_scanner import scan_process_memory
 from .network_analyzer import analyze_network_traffic
 from .sandbox import Sandbox
+from .database import Database
 
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
+logger = logging.getLogger(__name__)
 
 def scan_for_cve_2023_38831():
     winrar_path = get_winrar_path()
     if not winrar_path:
-        logging.warning("WinRAR not found on the system.")
+        logger.warning("WinRAR not found on the system.")
         return False, "WinRAR not found on the system."
 
     vulnerable_version = False
     version = ""
 
     try:
-        key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\WinRAR\Version")
-        version = winreg.QueryValueEx(key, "Version")[0]
-        winreg.CloseKey(key)
+        with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\WinRAR\Version") as key:
+            version = winreg.QueryValueEx(key, "Version")[0]
 
         major, minor, build = map(int, version.split('.'))
         if major < 6 or (major == 6 and minor == 0 and build <= 2):
             vulnerable_version = True
     except WindowsError:
-        logging.error("Unable to determine WinRAR version.")
+        logger.error("Unable to determine WinRAR version.")
         return False, "Unable to determine WinRAR version."
 
-    # Check file integrity
-    integrity_status = check_file_integrity(winrar_path)
-    if not integrity_status:
-        logging.warning(f"File integrity check failed for {winrar_path}")
-        return vulnerable_version, f"{version} (Integrity check failed)"
+    with ThreadPoolExecutor(max_workers=3) as executor:
+        futures = []
+        futures.append(executor.submit(check_file_integrity, winrar_path))
+        futures.append(executor.submit(scan_process_memory, "WinRAR.exe"))
+        futures.append(executor.submit(analyze_network_traffic, "eth0", duration=30))
 
-    # Scan process memory
-    if scan_process_memory("WinRAR.exe"):
-        logging.warning("Suspicious patterns found in WinRAR process memory")
-        vulnerable_version = True
+        for future in as_completed(futures):
+            result = future.result()
+            if isinstance(result, tuple):
+                operation, status = result
+                if operation == "integrity" and not status:
+                    logger.warning(f"File integrity check failed for {winrar_path}")
+                    vulnerable_version = True
+                elif operation == "memory" and status:
+                    logger.warning("Suspicious patterns found in WinRAR process memory")
+                    vulnerable_version = True
+                elif operation == "network" and status:
+                    logger.warning("Suspicious network traffic detected")
+                    vulnerable_version = True
 
-    # Analyze network traffic
-    if analyze_network_traffic("eth0", duration=30):
-        logging.warning("Suspicious network traffic detected")
-        vulnerable_version = True
-
-    # Run in sandbox
     with Sandbox() as sandbox:
         sandbox_winrar_path = sandbox.copy_file_to_sandbox(winrar_path)
         if sandbox_winrar_path:
             returncode, stdout, stderr = sandbox.run_command([sandbox_winrar_path, "--version"])
             if returncode != 0:
-                logging.warning(f"Unexpected behavior in sandbox: {stderr}")
+                logger.warning(f"Unexpected behavior in sandbox: {stderr}")
                 vulnerable_version = True
 
-    logging.info(f"Scan completed. WinRAR version: {version}, Vulnerable: {vulnerable_version}")
+    db = Database()
+    db.insert_scan_result(
+        vulnerable_version,
+        version,
+        "Integrity check passed" if not vulnerable_version else "Integrity check failed",
+        "No suspicious patterns in memory" if not vulnerable_version else "Suspicious patterns in memory",
+        "No suspicious network traffic" if not vulnerable_version else "Suspicious network traffic detected",
+        "No issues in sandbox environment" if not vulnerable_version else "Issues detected in sandbox environment"
+    )
+
+    logger.info(f"Scan completed. WinRAR version: {version}, Vulnerable: {vulnerable_version}")
     return vulnerable_version, version
 
 def main():

src/utils.py

@@ -1,11 +1,14 @@
 import os
 import winreg
+import logging
+
+logger = logging.getLogger(__name__)
 
 def get_winrar_path():
     try:
-        key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\WinRAR")
-        path = winreg.QueryValueEx(key, "exe64")[0]
-        winreg.CloseKey(key)
+        with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\WinRAR") as key:
+            path = winreg.QueryValueEx(key, "exe64")[0]
         return path if os.path.exists(path) else None
     except WindowsError:
+        logger.error("Unable to find WinRAR installation path")
         return None