BYAKUGAN_D-R-Rules/WMI_PowerShell.yml at master · TIEESUN/BYAKUGAN_D-R-Rules · GitHub

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detect:
  events:
  - NEW_PROCESS
  - WEL
  op: or
  rules:
  - op: and
    rules:
    - case sensitive: false
      op: is
      path: Event/System/EventID
      value: '4662'
    - case sensitive: false
      op: is
      path: Event/EventData/ObjectType
      value: WMI Namespace
    - case sensitive: false
      op: contains
      path: Event/EventData/ObjectName
      value: subscription
  - op: and
    rules:
    - case sensitive: false
      op: is
      path: Event/System/EventID
      value: '1121'
    - op: or
      rules:
      - case sensitive: false
        op: ends with
        path: Event/EventData/ProcessName
        value: \wmiprvse.exe
      - case sensitive: false
        op: ends with
        path: Event/EventData/ProcessName
        value: \psexesvc.exe
  - op: and
    rules:
    - op: and
      rules:
      - case sensitive: false
        op: is
        path: Event/System/EventID
        value: '5145'
      - case sensitive: false
        op: ends with
        path: Event/EventData/RelativeTargetName
        value: \wbem\wbemcomn.dll
    - case sensitive: false
      not: true
      op: ends with
      path: Event/EventData/SubjectUserName
      value: $
  - op: and
    rules:
    - case sensitive: false
      op: is
      path: Event/System/EventID
      value: '4624'
    - case sensitive: false
      op: ends with
      path: Event/EventData/ProcessName
      value: \WmiPrvSE.exe

  - op: and
    rules:
      - op: is
        path: event/FILE_PATH
        value: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      - op: ends with
        path: event/FILE_PATH
        value: \powershell.exe
  target: log
respond:
- action: report
  metadata:
    author: Sawood(TAGTREX), Shehroz(TAGTREX)
    description: Detects WMI AND POWERSHELL
    falsepositives:
    - Unknown (data set is too small; further testing needed)
    level: medium
    tags:
    - attack.persistence
    - attack.lateral_movement
    - attack.t1047
    - attack.t1569.002
    - attack.t1021.002