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https://github.com/LOLBAS-Project/LOLBAS
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28 lines
1.3 KiB
YAML
28 lines
1.3 KiB
YAML
---
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Name: cmdl32.exe
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Description: Microsoft Connection Manager Auto-Download
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Author: 'Elliot Killick'
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Created: 2021-08-26
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Commands:
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- Command: cmdl32 /vpn /lan %cd%\config
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Description: Download a file from the web address specified in the configuration file. The downloaded file will be in %TMP% under the name VPNXXXX.tmp where "X" denotes a random number or letter.
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Usecase: Download file from Internet
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Category: Download
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Privileges: User
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MitreID: T1105
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OperatingSystem: Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11
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Full_Path:
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- Path: C:\Windows\System32\cmdl32.exe
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- Path: C:\Windows\SysWOW64\cmdl32.exe
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Detection:
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- Sigma: https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_lolbin_cmdl32.yml
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- IOC: Reports of downloading from suspicious URLs in %TMP%\config.log
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- IOC: Useragent Microsoft(R) Connection Manager Vpn File Update
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Resources:
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- Link: https://github.com/LOLBAS-Project/LOLBAS/pull/151
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- Link: https://twitter.com/ElliotKillick/status/1455897435063074824
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- Link: https://elliotonsecurity.com/living-off-the-land-reverse-engineering-methodology-plus-tips-and-tricks-cmdl32-case-study/
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Acknowledgement:
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- Person: Elliot Killick
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Handle: '@elliotkillick'
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