Password Protected Compressed File Extraction Via 7Zip
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About the rule
Rule Type
Standard
Rule Description
Detects usage of 7zip utilities (7z.exe, 7za.exe and 7zr.exe) to extract password protected zip files.
Severity
Attention
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (MESSAGE contains "7-Zip" OR PROCESSNAME endswith "\7z.exe,\7zr.exe,\7za.exe" OR ORIGINALFILENAME = "7z.exe,7za.exe") AND (COMMANDLINE contains " -p" AND COMMANDLINE contains " x " AND COMMANDLINE contains " -o") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
