Group Policy Abuse for Privilege Addition

 Original Source: [Sigma source]
Title: Group Policy Abuse for Privilege Addition
Status: test
Description:Detects the first occurrence of a modification to Group Policy Object Attributes to add privileges to user accounts or use them to add users as local admins.
References:
  -https://www.elastic.co/guide/en/security/current/group-policy-abuse-for-privilege-addition.html#_setup_275
Author: Elastic, Josh Nickels, Marius Rothenbücher
Date: 2024-09-04
modified:None
Tags:
  • -'attack.privilege-escalation'
  • -'attack.defense-impairment'
  • -'attack.t1484.001'
Logsource:
  • product: windows
  • service: security
  • definition: Requirements: The "Audit Directory Service Changes" logging policy must be configured in order to receive events.
Detection:
  selection:
    EventID: '5136'
    AttributeLDAPDisplayName: 'gPCMachineExtensionNames'
    AttributeValue|contains:
      -'827D319E-6EAC-11D2-A4EA-00C04F79F83A'
      -'803E14A0-B4FB-11D0-A0D0-00A0C90F574B'

  condition:selection
Falsepositives:
  -Users allowed to perform these modifications (user found in field SubjectUserName)
Level: medium