AD Object WriteDAC Access

Description

Detects WRITE_DAC access to a domain object

Query · sigma

selection:
  EventID: 4662
  ObjectServer: DS
  AccessMask: '0x40000'
  ObjectType:
  - 19195a5b-6da0-11d0-afd3-00c04fd930c9
  - domainDNS
condition: selection

Known false positives

  • Unknown
Raw source AD Object WriteDAC Access · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: AD Object WriteDAC Access
id: 028c7842-4243-41cd-be6f-12f3cf1a26c7
status: test
description: Detects WRITE_DAC access to a domain object
references:
    - https://threathunterplaybook.com/hunts/windows/180815-ADObjectAccessReplication/notebook.html
    - https://threathunterplaybook.com/library/windows/active_directory_replication.html
    - https://threathunterplaybook.com/hunts/windows/190101-ADModDirectoryReplication/notebook.html
author: Roberto Rodriguez @Cyb3rWard0g
date: 2019-09-12
modified: 2021-11-27
tags:
    - attack.defense-impairment
    - attack.t1222.001
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4662
        ObjectServer: 'DS'
        AccessMask: '0x40000'
        ObjectType:
            - '19195a5b-6da0-11d0-afd3-00c04fd930c9'
            - 'domainDNS'
    condition: selection
falsepositives:
    - Unknown
level: critical

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