capa-rules/nursery/create-udp-socket.yml at v9.4.0 · mandiant/capa-rules · GitHub

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rule:
  meta:
    name: create UDP socket
    namespace: communication/socket/udp/send
    authors:
      - moritz.raabe@mandiant.com
      - joakim@intezer.com
      - michael.hunhoff@mandiant.com
    scopes:
      static: basic block
      dynamic: call
    mbc:
      - Communication::Socket Communication::Create UDP Socket [C0001.010]
    references:
      - https://learn.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-socket
      - https://man7.org/linux/man-pages/man2/socket.2.html
  features:
    - or:
      - and:
        - number: 2 = AF_INET
        - number: 2 = SOCK_DGRAM
        - number: 17 = IPPROTO_UDP
        - or:
          - api: socket
          - api: ws2_32.socket
          - api: ws2_32.#23 = socket
          - api: ws2_32.WSASocket
          - api: ws2_32.#82 = WSASocketA
          - api: ws2_32.#83 = WSASocketW
          - api: System.Net.Sockets.Socket::ctor
      - api: System.Net.Sockets.UdpClient::ctor