PowerShell Executable Running Under Non-Standard Name

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About the rule

Rule Type

Standard

Rule Description

Detects the execution of a renamed "powershell" binary execution

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (ORIGINALFILENAME = "PowerShell.EXE,PowerShell_ISE.EXE,pwsh.exe,pwsh.dll" AND PROCESSNAME notcontains "powershell.exe,powershell_ise.exe,pwsh.exe") 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