53 lines
1.7 KiB
YAML
53 lines
1.7 KiB
YAML
title: Suspicious WSMAN Provider Image Loads
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author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
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date: 2020/06/24
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description: Detects signs of potential use of the WSMAN provider from uncommon processes
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locally and remote execution.
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detection:
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SELECTION_1:
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EventID: 7
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SELECTION_10:
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Image: '*\svchost.exe'
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SELECTION_11:
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OriginalFileName: WsmWmiPl.dll
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SELECTION_2:
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EventID: 7
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SELECTION_3:
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ImageLoaded: '*\WsmSvc.dll'
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SELECTION_4:
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ImageLoaded: '*\WsmAuto.dll'
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SELECTION_5:
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ImageLoaded: '*\Microsoft.WSMan.Management.ni.dll'
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SELECTION_6:
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OriginalFileName: WsmSvc.dll
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SELECTION_7:
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OriginalFileName: WSMANAUTOMATION.DLL
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SELECTION_8:
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OriginalFileName: Microsoft.WSMan.Management.dll
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SELECTION_9:
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Image: '*\powershell.exe'
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condition: (SELECTION_1 and ((SELECTION_2 and ((SELECTION_3 or SELECTION_4 or
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SELECTION_5) or (SELECTION_6 or SELECTION_7 or SELECTION_8)) and not (SELECTION_9))
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or (SELECTION_10 and SELECTION_11)))
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falsepositives:
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- Unknown
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id: ad1f4bb9-8dfb-4765-adb6-2a7cfb6c0f94
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level: medium
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logsource:
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category: image_load
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product: windows
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references:
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- https://twitter.com/chadtilbury/status/1275851297770610688
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- https://bohops.com/2020/05/12/ws-management-com-another-approach-for-winrm-lateral-movement/
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- https://docs.microsoft.com/en-us/windows/win32/winrm/windows-remote-management-architecture
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- https://github.com/bohops/WSMan-WinRM
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status: experimental
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tags:
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- attack.execution
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- attack.t1059.001
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- attack.lateral_movement
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- attack.t1021.003
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yml_filename: sysmon_wsman_provider_image_load.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/image_load
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