LOLBAS/yml/OSBinaries/Atbroker.yml

---
Name: Atbroker.exe
Description: Helper binary for Assistive Technology (AT)
Author: 'Oddvar Moe'
Created: 2018-05-25
Commands:
  - Command: ATBroker.exe /start malware
    Description: Start a registered Assistive Technology (AT).
    Usecase: Executes code defined in registry for a new AT. Modifications must be made to the system registry to either register or modify an existing Assistive Technology (AT) service entry.
    Category: Execute
    Privileges: User
    MitreID: T1218
    OperatingSystem: Windows 8, Windows 8.1, Windows 10, Windows 11
Full_Path:
  - Path: C:\Windows\System32\Atbroker.exe
  - Path: C:\Windows\SysWOW64\Atbroker.exe
Detection:
  - Sigma: https://github.com/SigmaHQ/sigma/blob/eb406ba36fc607986970c09e53058af412093647/rules/windows/process_creation/win_susp_atbroker.yml
  - Sigma: https://github.com/SigmaHQ/sigma/blob/7bca85e40618126643b9712b80bd663c21908e26/rules/windows/registry_event/sysmon_susp_atbroker_change.yml
  - IOC: Changes to HKCU\Software\Microsoft\Windows NT\CurrentVersion\Accessibility\Configuration
  - IOC: Changes to HKLM\Software\Microsoft\Windows NT\CurrentVersion\Accessibility\ATs
  - IOC: Unknown AT starting C:\Windows\System32\ATBroker.exe /start malware
Resources:
  - Link: http://www.hexacorn.com/blog/2016/07/22/beyond-good-ol-run-key-part-42/
Acknowledgement:
  - Person: Adam
    Handle: '@hexacorn'
Initial commit - LOLBAS V2.0 2018-06-09 00:15:06 +02:00			`---`
			`Name: Atbroker.exe`
Update readme, began updating OSBins with new template 2018-09-24 01:50:14 +02:00			`Description: Helper binary for Assistive Technology (AT)`
			`Author: 'Oddvar Moe'`
Standardise date formats (see https://yaml.org/type/timestamp.html) 2021-01-10 16:04:52 +01:00			`Created: 2018-05-25`
Initial commit - LOLBAS V2.0 2018-06-09 00:15:06 +02:00			`Commands:`
			`- Command: ATBroker.exe /start malware`
			`Description: Start a registered Assistive Technology (AT).`
Minor formatting changes (redudant backslashes, incorrect dates, typos, etc.) 2021-12-14 15:57:32 +01:00			`Usecase: Executes code defined in registry for a new AT. Modifications must be made to the system registry to either register or modify an existing Assistive Technology (AT) service entry.`
Update readme, began updating OSBins with new template 2018-09-24 01:50:14 +02:00			`Category: Execute`
			`Privileges: User`
			`MitreID: T1218`
Updating entries that have been confirmed to be working on Windows 11 (21H2) 2021-12-14 16:50:17 +01:00			`OperatingSystem: Windows 8, Windows 8.1, Windows 10, Windows 11`
Major changes to Web portal - Small fixes to source files to adjust 2018-12-10 14:28:12 +01:00			`Full_Path:`
Changed all OSBinaries according to the new template 2018-09-24 21:59:43 +02:00			`- Path: C:\Windows\System32\Atbroker.exe`
			`- Path: C:\Windows\SysWOW64\Atbroker.exe`
Update readme, began updating OSBins with new template 2018-09-24 01:50:14 +02:00			`Detection:`
Fixing errors found in yaml lint action. 2022-09-11 07:07:18 +02:00			`- Sigma: https://github.com/SigmaHQ/sigma/blob/eb406ba36fc607986970c09e53058af412093647/rules/windows/process_creation/win_susp_atbroker.yml`
			`- Sigma: https://github.com/SigmaHQ/sigma/blob/7bca85e40618126643b9712b80bd663c21908e26/rules/windows/registry_event/sysmon_susp_atbroker_change.yml`
			`- IOC: Changes to HKCU\Software\Microsoft\Windows NT\CurrentVersion\Accessibility\Configuration`
			`- IOC: Changes to HKLM\Software\Microsoft\Windows NT\CurrentVersion\Accessibility\ATs`
			`- IOC: Unknown AT starting C:\Windows\System32\ATBroker.exe /start malware`
Initial commit - LOLBAS V2.0 2018-06-09 00:15:06 +02:00			`Resources:`
Update readme, began updating OSBins with new template 2018-09-24 01:50:14 +02:00			`- Link: http://www.hexacorn.com/blog/2016/07/22/beyond-good-ol-run-key-part-42/`
			`Acknowledgement:`
			`- Person: Adam`
			`Handle: '@hexacorn'`