Gen Mal
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Detects PowerShell command-line execution with unusual or randomized character casing for keywords like "powershell" or "-noprofile". This is a common obfuscation technique used by attackers to evade basic, case-sensitive detections. This rule is inspired by the THOR PowerShell_Case_Anomaly Yara rule.
Detects when a 7-Zip process, potentially running from a user directory, writes a file to a sensitive system location. This could indicate a directory traversal attack (e.g., CVE-2025-11001, CVE-2025-11002) where a malicious archive writes a file outside of the intended extraction path. The rule specifically looks for 7-Zip processes initiated from common user-land folders (like Downloads, Desktop, Documents, Temp) creating files in sensitive system directories (like C:\Windows, C:\Windows\System32, C:\ProgramData, or Startup folders), while excluding legitimate installations to Program Files.
Detects when a 7-Zip process creates an executable file in a sensitive system directory. This could indicate exploitation of a vulnerability like CVE-2025-11001 or CVE-2025-11002, where a malicious archive writes a file to an unexpected location to achieve persistence or code execution.