Potential PowerShell Downgrade Attack
Last updated on:
In this page
About the rule
Rule Type
Standard
Rule Description
Detects PowerShell downgrade attack by comparing the host versions with the actually used engine version 2.0
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND PROCESSNAME endswith "\powershell.exe" AND COMMANDLINE contains " -version 2 , -versio 2 , -versi 2 , -vers 2 , -ver 2 , -ve 2 , -v 2 " select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Harish Segar (rule)
