2022-02-16 21:41:14 +01:00
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---
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Name: Wlrmdr.exe
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Description: Windows Logon Reminder executable
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2022-02-16 22:02:24 +01:00
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Author: Moshe Kaplan
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Created: 2022-02-16
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2022-02-16 21:41:14 +01:00
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Commands:
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2022-02-16 22:02:24 +01:00
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- Command: "wlrmdr.exe -s 3600 -f 0 -t _ -m _ -a 11 -u calc.exe"
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Description: Execute calc.exe with wlrmdr.exe as parent process
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2022-02-16 21:41:14 +01:00
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Usecase: Use wlrmdr as a proxy binary to evade defensive countermeasures
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Category: Execute
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Privileges: User
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MitreID: T1202
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2022-02-16 22:02:24 +01:00
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OperatingSystem: Windows 10, Windows 11
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2022-02-16 21:41:14 +01:00
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Full_Path:
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- Path: c:\windows\system32\wlrmdr.exe
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Code_Sample:
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- Code:
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Detection:
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2022-05-17 10:18:45 +02:00
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- Sigma: https://github.com/SigmaHQ/sigma/blob/35a7244c62820fbc5a832e50b1e224ac3a1935da/rules/windows/process_creation/proc_creation_win_lolbin_wlrmdr.yml
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2022-02-16 21:41:14 +01:00
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- IOC: wlrmdr.exe spawning any new processes
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Resources:
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- Link: https://twitter.com/0gtweet/status/1493963591745220608
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- Link: https://twitter.com/Oddvarmoe/status/927437787242090496
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- Link: https://twitter.com/falsneg/status/1461625526640992260
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- Link: https://docs.microsoft.com/en-us/windows/win32/api/shellapi/ns-shellapi-notifyicondataw
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Acknowledgement:
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- Person: Grzegorz Tworek
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Handle: '@0gtweet'
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- Person: Oddvar Moe
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Handle: '@Oddvarmoe'
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- Person: Freddy
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Handle: '@falsneg'
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