2021-11-15 00:26:39 +01:00
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---
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Name: CustomShellHost.exe
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Description: A host process that is used by custom shells when using Windows in Kiosk mode.
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Author: 'Wietze Beukema'
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Created: 2021-11-14
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Commands:
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- Command: CustomShellHost.exe
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Description: Executes explorer.exe (with command-line argument /NoShellRegistrationCheck) if present in the current working folder.
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Usecase: Can be used to evade defensive counter-measures
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Category: Execute
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Privileges: User
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MitreID: T1218
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OperatingSystem: Windows 10, Windows 11
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Full_Path:
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- Path: C:\Windows\System32\CustomShellHost.exe
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Detection:
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- IOC: CustomShellHost.exe is unlikely to run on normal workstations
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2022-10-26 10:10:39 +02:00
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- Sigma: https://github.com/SigmaHQ/sigma/blob/ff5102832031425f6eed011dd3a2e62653008c94/rules/windows/process_creation/proc_creation_win_lolbin_customshellhost.yml
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2021-11-15 00:26:39 +01:00
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Resources:
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- Link: https://twitter.com/YoSignals/status/1381353520088113154
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- Link: https://docs.microsoft.com/en-us/windows/configuration/kiosk-shelllauncher
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Acknowledgement:
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- Person: John Carroll
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Handle: '@YoSignals'
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