LOLBAS/yml/OSBinaries/Mmc.yml

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---
Name: Mmc.exe
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Description: Load snap-ins to locally and remotely manage Windows systems
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Author: '@bohops'
Created: 2018-12-04
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Commands:
- Command: mmc.exe -Embedding c:\path\to\test.msc
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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
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Category: Execute
Privileges: User
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MitreID: T1218.014
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OperatingSystem: Windows 10 (and possibly earlier versions)
- 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)
Full_Path:
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- Path: C:\Windows\System32\mmc.exe
- Path: C:\Windows\SysWOW64\mmc.exe
Code_Sample:
- Code:
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Detection:
- Sigma: https://github.com/SigmaHQ/sigma/blob/08ca62cc8860f4660e945805d0dd615ce75258c1/rules/windows/process_creation/win_mmc_spawn_shell.yml
- Sigma: https://github.com/SigmaHQ/sigma/blob/b731c2059445eef53e37232a5f3634c3473aae0c/rules/windows/file_event/sysmon_uac_bypass_dotnet_profiler.yml
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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
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Acknowledgement:
- Person: Jimmy
Handle: '@bohops'
- Person: clem
Handle: '@clavoillotte'