chore: harmonize wuauclt rules - kept the oldest, most generic, highest level one
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@@ -1,32 +0,0 @@
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title: Monitoring Wuauclt.exe For Lolbas Execution Of DLL
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id: ba1bb0cb-73da-42de-ad3a-de10c643a5d0
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status: experimental
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description: Adversaries can abuse wuauclt.exe (Windows Update client) to run code execution by specifying an arbitrary DLL.
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references:
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- https://dtm.uk/wuauclt/
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author: Sreeman
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date: 2020/10/29
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modified: 2022/03/07
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logsource:
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product: windows
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category: process_creation
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detection:
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selection:
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CommandLine|contains|all:
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- 'wuauclt.exe'
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- '/UpdateDeploymentProvider'
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- '/Runhandlercomserver'
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filter:
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CommandLine|contains:
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- 'wuaueng.dll'
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- 'UpdateDeploymentProvider.dll /ClassId'
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condition: selection and not filter
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falsepositives:
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- Wuaueng.dll which is a module belonging to Microsoft Windows Update.
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fields:
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- CommandLine
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level: medium
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tags:
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- attack.defense_evasion
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- attack.execution
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- attack.t1218
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@@ -1,13 +1,19 @@
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title: Proxy Execution via Wuauclt
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id: af77cf95-c469-471c-b6a0-946c685c4798
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description: Detects the use of the Windows Update Client binary (wuauclt.exe) to proxy execute code.
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related:
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- id: ba1bb0cb-73da-42de-ad3a-de10c643a5d0
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type: obsoletes
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- id: d7825193-b70a-48a4-b992-8b5b3015cc11
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type: obsoletes
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status: experimental
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date: 2020/10/12
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modified: 2021/05/10
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author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research), Florian Roth
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author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research), Florian Roth, Sreeman, FPT.EagleEye Team
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tags:
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- attack.defense_evasion
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- attack.t1218
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- attack.execution
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references:
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- https://dtm.uk/wuauclt/
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- https://blog.malwarebytes.com/threat-intelligence/2022/01/north-koreas-lazarus-apt-leverages-windows-update-client-github-in-latest-campaign/
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@@ -19,12 +25,12 @@ detection:
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- Image|contains: wuauclt
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- OriginalFileName: wuauclt.exe
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selection_two:
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CommandLine|contains|all:
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CommandLine|contains|all:
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- 'UpdateDeploymentProvider'
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- '.dll'
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- 'RunHandlerComServer'
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filter:
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CommandLine|contains:
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CommandLine|contains:
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- ' /UpdateDeploymentProvider UpdateDeploymentProvider.dll '
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- ' wuaueng.dll '
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condition: selection_one and selection_two and not filter
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