CurrentVersion Autorun Keys Modification

Title: CurrentVersion Autorun Keys Modification
Status: test
Description:Detects modification of autostart extensibility point (ASEP) in registry.
References:
  -https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.001/T1547.001.md
  -https://learn.microsoft.com/en-us/sysinternals/downloads/autoruns
  -https://gist.github.com/GlebSukhodolskiy/0fc5fa5f482903064b448890db1eaf9d
  -https://oddvar.moe/2018/03/21/persistence-using-runonceex-hidden-from-autoruns-exe/
Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)
Date: 2019-10-25
modified:2025-06-16
Tags:

• -'attack.persistence'
• -'attack.t1547.001'

Logsource:

• category: registry_set
• product: windows

Detection:
  current_version_base:
    TargetObject|contains: '\SOFTWARE\Microsoft\Windows\CurrentVersion'
  current_version_keys:
    TargetObject|contains:
      -'\ShellServiceObjectDelayLoad'
      -'\Run\'
      -'\RunOnce\'
      -'\RunOnceEx\'
      -'\RunServices\'
      -'\RunServicesOnce\'
      -'\Policies\System\Shell'
      -'\Policies\Explorer\Run'
      -'\Group Policy\Scripts\Startup'
      -'\Group Policy\Scripts\Shutdown'
      -'\Group Policy\Scripts\Logon'
      -'\Group Policy\Scripts\Logoff'
      -'\Explorer\ShellServiceObjects'
      -'\Explorer\ShellIconOverlayIdentifiers'
      -'\Explorer\ShellExecuteHooks'
      -'\Explorer\SharedTaskScheduler'
      -'\Explorer\Browser Helper Objects'
      -'\Authentication\PLAP Providers'
      -'\Authentication\Credential Providers'
      -'\Authentication\Credential Provider Filters'

  filter_all:
Details:'(Empty)' TargetObject|endswith:'\NgcFirst\ConsecutiveSwitchCount'     - Image|endswith:
      - '\AppData\Local\Microsoft\OneDrive\Update\OneDriveSetup.exe'
      - '\AppData\Roaming\Spotify\Spotify.exe'
      - '\AppData\Local\WebEx\WebexHost.exe'
    - Image:
      - 'C:\WINDOWS\system32\devicecensus.exe'
      - 'C:\Windows\system32\winsat.exe'
      - 'C:\Program Files\Microsoft OneDrive\StandaloneUpdater\OneDriveSetup.exe'
      - 'C:\Program Files\Microsoft OneDrive\Update\OneDriveSetup.exe'
      - 'C:\Program Files (x86)\Microsoft OneDrive\Update\OneDriveSetup.exe'
      - 'C:\Program Files\KeePass Password Safe 2\ShInstUtil.exe'
      - 'C:\Program Files\Everything\Everything.exe'
      - 'C:\Program Files (x86)\Microsoft Office\root\integration\integrator.exe'
      - 'C:\Program Files\Microsoft Office\root\integration\integrator.exe'
  filter_logonui:
    Image: 'C:\Windows\system32\LogonUI.exe'
    TargetObject|contains:
      -'\Authentication\Credential Providers\{D6886603-9D2F-4EB2-B667-1971041FA96B}\'
      -'\Authentication\Credential Providers\{BEC09223-B018-416D-A0AC-523971B639F5}\'
      -'\Authentication\Credential Providers\{8AF662BF-65A0-4D0A-A540-A338A999D36F}\'
      -'\Authentication\Credential Providers\{27FBDB57-B613-4AF2-9D7E-4FA7A66C21AD}\'

  filter_edge:
    Image|startswith:
      -'C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\'
      -'C:\Program Files (x86)\Microsoft\EdgeWebView\'
      -'C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe'

  filter_dropbox:
    Image: 'C:\Windows\system32\regsvr32.exe'
    TargetObject|contains: 'DropboxExt'
    Details|endswith: 'A251-47B7-93E1-CDD82E34AF8B}'
  filter_opera:
    TargetObject|endswith: '\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Opera Browser Assistant'
    Details: 'C:\Program Files\Opera\assistant\browser_assistant.exe'
  filter_itunes:
    TargetObject|endswith: '\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\iTunesHelper'
    Details: '"C:\Program Files\iTunes\iTunesHelper.exe"'
  filter_zoom:
    TargetObject|endswith: '\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\zoommsirepair'
    Details: '"C:\Program Files\Zoom\bin\installer.exe" /repair'
  filter_greenshot:
    TargetObject|endswith: '\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Greenshot'
    Details: 'C:\Program Files\Greenshot\Greenshot.exe'
  filter_googledrive1:
    TargetObject|endswith: '\Software\Microsoft\Windows\CurrentVersion\Run\GoogleDriveFS'
    Details|startswith: 'C:\Program Files\Google\Drive File Stream\'
    Details|contains: '\GoogleDriveFS.exe'
  filter_googledrive2:
    TargetObject|contains: 'GoogleDrive'
    Details:
      -'{CFE8B367-77A7-41D7-9C90-75D16D7DC6B6}'
      -'{A8E52322-8734-481D-A7E2-27B309EF8D56}'
      -'{C973DA94-CBDF-4E77-81D1-E5B794FBD146}'
      -'{51EF1569-67EE-4AD6-9646-E726C3FFC8A2}'

  filter_onedrive:
    Details|startswith:
      -'C:\Windows\system32\cmd.exe /q /c rmdir /s /q "C:\Users\'
      -'C:\Windows\system32\cmd.exe /q /c del /q "C:\Users\'

    Details|contains: '\AppData\Local\Microsoft\OneDrive\'
  filter_python:
    TargetObject|contains: '\Microsoft\Windows\CurrentVersion\RunOnce\{'
    Details|contains|all:
      -'\AppData\Local\Package Cache\{'
      -'}\python-'

    Details|endswith: '.exe" /burn.runonce'
  filter_officeclicktorun:
    Image|startswith:
      -'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\'
      -'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\Updates\'

    Image|endswith: '\OfficeClickToRun.exe'
  filter_defender:
    Image: 'C:\Program Files\Windows Defender\MsMpEng.exe'
  filter_teams:
    Image|endswith: '\Microsoft\Teams\current\Teams.exe'
    Details|contains: '\Microsoft\Teams\Update.exe --processStart '
  filter_ctfmon:
    Image: 'C:\Windows\system32\userinit.exe'
    Details: 'ctfmon.exe /n'
  filter_AVG:
    Image|startswith: 'C:\Program Files\AVG\Antivirus\Setup\'
    Details:
      -'"C:\Program Files\AVG\Antivirus\AvLaunch.exe" /gui'
      -'"C:\Program Files (x86)\AVG\Antivirus\AvLaunch.exe" /gui'
      -'{472083B0-C522-11CF-8763-00608CC02F24}'

  filter_aurora_dashboard:
    Image|endswith:
      -'\aurora-agent-64.exe'
      -'\aurora-agent.exe'

    TargetObject|endswith: '\Microsoft\Windows\CurrentVersion\Run\aurora-dashboard'
    Details: 'C:\Program Files\Aurora-Agent\tools\aurora-dashboard.exe'
  filter_everything:
    TargetObject|endswith: '\Microsoft\Windows\CurrentVersion\Run\Everything'
    Details|endswith: '\Everything\Everything.exe" -startup'
  condition:all of current_version_* and not 1 of filter_*
Falsepositives:
  -Legitimate software automatically (mostly, during installation) sets up autorun keys for legitimate reason
  -Legitimate administrator sets up autorun keys for legitimate reason
Level: medium