Execute Code with Pester.bat

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About the rule

Rule Type

Standard

Rule Description

Detects code execution via Pester.bat (Pester - Powershell Modulte for testing)

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (PROCESSNAME endswith "\powershell.exe,\pwsh.exe" AND (COMMANDLINE contains "Pester" AND COMMANDLINE contains "Get-Help")) OR ((PROCESSNAME endswith "\cmd.exe" AND (COMMANDLINE contains "pester" AND COMMANDLINE contains ";")) AND COMMANDLINE contains "help,\?") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Julia Fomina, oscd.community