ClickFix FileFix PowerShell Execution from File Explorer
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About the rule
Rule Type
Standard
Rule Description
Detects FileFix ClickFix where a victim pastes a PowerShell command into File Explorer address bar resulting in explorer.exe spawning a hidden PowerShell.
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "Process started" AND ( PARENTPROCESSNAME endswith "\explorer.exe" AND ( PROCESSNAME endswith "\powershell.exe" OR ORIGINALFILENAME = "PowerShell.EXE" ) AND COMMANDLINE contains "-enc,-EncodedCommand,-w hidden,-windowstyle h,DownloadString" )
select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME,Action1.DOMAIN,Action1.ORIGINALFILENAME,Action1.PARENTPROCESSID,Action1.PROCESSID,Action1.PRODUCT_NAME,Action1.SECURITYID
Detection
Execution Mode
realtime
Log Sources
Windows
