
title: Atbroker Registry Change
author: Mateusz Wydra, oscd.community
date: 2020/10/13
description: Detects creation/modification of Assisitive Technology applications and
  persistence with usage of ATs
detection:
  SELECTION_1:
    EventID: 12
  SELECTION_2:
    EventID: 13
  SELECTION_3:
    EventID: 14
  SELECTION_4:
    TargetObject: '*Software\Microsoft\Windows NT\CurrentVersion\Accessibility\ATs*'
  SELECTION_5:
    TargetObject: '*Software\Microsoft\Windows NT\CurrentVersion\Accessibility\Configuration*'
  condition: ((SELECTION_1 or SELECTION_2 or SELECTION_3) and (SELECTION_4 or SELECTION_5))
falsepositives:
- Creation of non-default, legitimate AT.
id: 9577edbb-851f-4243-8c91-1d5b50c1a39b
level: high
logsource:
  category: registry_event
  product: windows
modified: 2021/05/24
references:
- http://www.hexacorn.com/blog/2016/07/22/beyond-good-ol-run-key-part-42/
- https://github.com/LOLBAS-Project/LOLBAS/blob/master/yml/OSBinaries/Atbroker.yml
status: experimental
tags:
- attack.defense_evasion
- attack.t1218
- attack.persistence
- attack.t1547
ruletype: SIGMA
