Password Protected ZIP File Opened with Suspicious Filename

SigmaHQ Detections@sigmaHQ

•updated Aug 12, 2024•1•0•20

Detects when a password-protected ZIP archive is opened on a Windows system, specifically looking for archives with suspicious filenames commonly used in phishing or social engineering attacks (e.g., 'invoice', 'order', 'payment'). This rule leverages Windows Security Event ID 5379, which indicates a sensitive privilege use, and filters for events related to the Microsoft_Windows_Shell_ZipFolder:filename provider, combined with a list of suspicious keywords in the TargetName field.