LOLBAS/yml/OSBinaries/Mmc.yml
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YAML

---
Name: Mmc.exe
Description: Load snap-ins to locally and remotely manage Windows systems
Author: '@bohops'
Created: 2018-12-04
Commands:
- Command: mmc.exe -Embedding c:\path\to\test.msc
Description: Launch a 'backgrounded' MMC process and invoke a COM payload
Usecase: Configure a snap-in to load a COM custom class (CLSID) that has been added to the registry
Category: Execute
Privileges: User
MitreID: T1218.014
OperatingSystem: Windows 10 (and possibly earlier versions), Windows 11
- Command: mmc.exe gpedit.msc
Description: Load an arbitrary payload DLL by configuring COR Profiler registry settings and launching MMC to bypass UAC.
Usecase: Modify HKCU\Environment key in Registry with COR profiler values then launch MMC to load the payload DLL.
Category: UAC Bypass
Privileges: Administrator
MitreID: T1218.014
OperatingSystem: Windows 10 (and possibly earlier versions), Windows 11
Full_Path:
- Path: C:\Windows\System32\mmc.exe
- Path: C:\Windows\SysWOW64\mmc.exe
Code_Sample:
- Code:
Detection:
- Sigma: https://github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/process_creation/proc_creation_win_mmc_susp_child_process.yml
- Sigma: https://github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/file/file_event/file_event_win_uac_bypass_dotnet_profiler.yml
Resources:
- Link: https://bohops.com/2018/08/18/abusing-the-com-registry-structure-part-2-loading-techniques-for-evasion-and-persistence/
- Link: https://offsec.almond.consulting/UAC-bypass-dotnet.html
Acknowledgement:
- Person: Jimmy
Handle: '@bohops'
- Person: clem
Handle: '@clavoillotte'