Windows Defender Exclusions Added - PowerShell

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About the rule

Rule Type

Standard

Rule Description

Detects modifications to the Windows Defender configuration settings using PowerShell to add exclusions

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "PowerShell Script Block Logged" AND SCRIPTEXECUTED contains " -ExclusionPath , -ExclusionExtension , -ExclusionProcess , -ExclusionIpAddress " AND SCRIPTEXECUTED contains "Add-MpPreference ,Set-MpPreference " select Action1.HOSTNAME,Action1.MESSAGE,Action1.SCRIPTEXECUTED

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Tim Rauch, Elastic (idea)