Clear PowerShell History - PowerShell

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About the rule

Rule Type

Standard

Rule Description

Detects keywords that could indicate clearing PowerShell history

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "PowerShell Script Block Logged" AND ((SCRIPTEXECUTED contains "Set-PSReadlineOption" AND SCRIPTEXECUTED contains "–HistorySaveStyle" AND SCRIPTEXECUTED contains "SaveNothing") OR (SCRIPTEXECUTED contains "Set-PSReadlineOption" AND SCRIPTEXECUTED contains "-HistorySaveStyle" AND SCRIPTEXECUTED contains "SaveNothing")) OR (SCRIPTEXECUTED contains "del,Remove-Item,rm" AND SCRIPTEXECUTED contains "(Get-PSReadlineOption).HistorySavePath") select Action1.HOSTNAME,Action1.MESSAGE,Action1.SCRIPTEXECUTED

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Ilyas Ochkov, Jonhnathan Ribeiro, Daniil Yugoslavskiy, oscd.community