Group Policy Abuse for Privilege Addition

 1title: Group Policy Abuse for Privilege Addition
 2id: 1c480e10-7ee1-46d4-8ed2-85f9789e3ce4
 3status: experimental
 4description: |
 5        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.
 6author: Elastic, Josh Nickels, Marius Rothenbücher
 7references:
 8    - https://www.elastic.co/guide/en/security/current/group-policy-abuse-for-privilege-addition.html#_setup_275
 9date: 2024-09-04
10tags:
11    - attack.privilege-escalation
12    - attack.t1484.001
13logsource:
14    product: windows
15    service: security
16    definition: 'Requirements: The "Audit Directory Service Changes" logging policy must be configured in order to receive events.'
17detection:
18    selection:
19        EventID: 5136
20        AttributeLDAPDisplayName: 'gPCMachineExtensionNames'
21        AttributeValue|contains:
22            - '827D319E-6EAC-11D2-A4EA-00C04F79F83A'
23            - '803E14A0-B4FB-11D0-A0D0-00A0C90F574B'
24    condition: selection
25falsepositives:
26    - Users allowed to perform these modifications (user found in field SubjectUserName)
27level: medium