Title:
Common 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://persistence-info.github.io/Data/userinitmprlogonscript.html
Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split), wagga (name)
Date: 2019-10-25
modified:2025-10-22
Tags:
- -'attack.privilege-escalation'
- -'attack.persistence'
- -'attack.t1547.001'
Logsource:
- category: registry_set
- product: windows
Detection:
selection:
TargetObject|contains:
-'\SOFTWARE\Wow6432Node\Microsoft\Windows CE Services\AutoStart'
-'\Software\Wow6432Node\Microsoft\Command Processor\Autorun'
-'\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components'
-'\SOFTWARE\Microsoft\Windows CE Services\AutoStartOnDisconnect'
-'\SOFTWARE\Microsoft\Windows CE Services\AutoStartOnConnect'
-'\SYSTEM\Setup\CmdLine'
-'\Software\Microsoft\Ctf\LangBarAddin'
-'\Software\Microsoft\Command Processor\Autorun'
-'\SOFTWARE\Microsoft\Active Setup\Installed Components'
-'\SOFTWARE\Classes\Protocols\Handler'
-'\SOFTWARE\Classes\Protocols\Filter'
-'\SOFTWARE\Classes\Htmlfile\Shell\Open\Command\(Default)'
-'\Environment\UserInitMprLogonScript'
-'\SOFTWARE\Policies\Microsoft\Windows\Control Panel\Desktop\Scrnsave.exe'
-'\Software\Microsoft\Internet Explorer\UrlSearchHooks'
-'\SOFTWARE\Microsoft\Internet Explorer\Desktop\Components'
-'\Software\Classes\Clsid\{AB8902B4-09CA-4bb6-B78D-A8F59079A8D5}\Inprocserver32'
-'\Control Panel\Desktop\Scrnsave.exe'
filter_main_empty:
Details:
'(Empty)'
filter_main_null:
Details:
'None'
filter_main_poqexec:
Image:
'C:\Windows\System32\poqexec.exe'
filter_optional_msoffice:
- TargetObject|contains:
- '\Office\ClickToRun\REGISTRY\MACHINE\Software\Classes\PROTOCOLS\Handler\'
- '\ClickToRunStore\HKMU\SOFTWARE\Classes\PROTOCOLS\Handler\'
- Details:
- '{314111c7-a502-11d2-bbca-00c04f8ec294}'
- '{3459B272-CC19-4448-86C9-DDC3B4B2FAD3}'
- '{42089D2D-912D-4018-9087-2B87803E93FB}'
- '{5504BE45-A83B-4808-900A-3A5C36E7F77A}'
- '{807583E5-5146-11D5-A672-00B0D022E945}'
filter_optional_chrome:
TargetObject|contains:
'\SOFTWARE\Microsoft\Active Setup\Installed Components\{8A69D345-D564-463c-AFF1-A69D9E530F96}'
filter_optional_edge:
TargetObject|contains:
'\SOFTWARE\Microsoft\Active Setup\Installed Components\{9459C573-B17A-45AE-9F64-1857B5D58CEE}'
filter_optional_IE:
TargetObject|contains:
'\Software\Microsoft\Active Setup\Installed Components\{89820200-ECBD-11cf-8B85-00AA005B4383}'
filter_optional_integrator:
Image:
-'C:\Program Files (x86)\Microsoft Office\root\integration\integrator.exe'
-'C:\Program Files\Microsoft Office\root\integration\integrator.exe'
filter_optional_office:
Image|startswith:
-'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\'
-'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\Updates\'
Image|endswith:
'\OfficeClickToRun.exe'
condition:
selection and not 1 of filter_main_* and not 1 of filter_optional_*
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
