Modify Group Policy Settings

Last updated on:

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 = "Process started" AND (PROCESSNAME endswith "\reg.exe" OR ORIGINALFILENAME = "reg.exe") AND COMMANDLINE contains "\SOFTWARE\Policies\Microsoft\Windows\System" AND COMMANDLINE contains "GroupPolicyRefreshTimeDC,GroupPolicyRefreshTimeOffsetDC,GroupPolicyRefreshTime,GroupPolicyRefreshTimeOffset,EnableSmartScreen,ShellSmartScreenLevel" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Active Directory

Author

frack113