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32 lines
1.2 KiB
YAML
32 lines
1.2 KiB
YAML
title: Winlogon Helper DLL
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id: 851c506b-6b7c-4ce2-8802-c703009d03c0
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status: experimental
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description: Winlogon.exe is a Windows component responsible for actions at logon/logoff as well as the secure attention sequence (SAS) triggered by Ctrl-Alt-Delete.
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Registry entries in HKLM\Software[Wow6432Node]Microsoft\Windows NT\CurrentVersion\Winlogon\ and HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ are
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used to manage additional helper programs and functionalities that support Winlogon. Malicious modifications to these Registry keys may cause Winlogon to load
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and execute malicious DLLs and/or executables.
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author: Timur Zinniatullin, oscd.community
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date: 2019/10/21
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modified: 2019/11/04
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references:
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1004/T1004.yaml
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logsource:
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product: windows
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service: powershell
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description: 'Script block logging must be enabled'
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detection:
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selection:
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EventID: 4104
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keyword1:
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- '*Set-ItemProperty*'
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- '*New-Item*'
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keyword2:
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- '*CurrentVersion\Winlogon*'
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condition: selection and ( keyword1 and keyword2 )
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falsepositives:
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- Unknown
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level: medium
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tags:
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- attack.persistence
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- attack.t1004
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