Modify Group Policy Settings - ScriptBlockLogging

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About the rule

Rule Type

Standard

Rule Description

Detect malicious GPO modifications can be used to implement many other malicious behaviors.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "PowerShell Script Block Logged" AND SCRIPTEXECUTED contains "\SOFTWARE\Policies\Microsoft\Windows\System" AND SCRIPTEXECUTED contains "GroupPolicyRefreshTimeDC,GroupPolicyRefreshTimeOffsetDC,GroupPolicyRefreshTime,GroupPolicyRefreshTimeOffset,EnableSmartScreen,ShellSmartScreenLevel" select Action1.HOSTNAME,Action1.MESSAGE,Action1.SCRIPTEXECUTED

Detection

Execution Mode

realtime

Log Sources

Active Directory

Author

frack113