execute shellcode via CopyFile2

rule:
  meta:
    name: execute shellcode via CopyFile2
    namespace: load-code/shellcode
    authors:
      - jakub.jozwiak@mandiant.com
    scopes:
      static: function
      dynamic: thread
    references:
      - https://github.com/S4R1N/AlternativeShellcodeExec/blob/master/CopyFile2/CopyFile2.cpp
    examples:
      - c2bb17c12975ea61ff43a71afd9c3ff111d018af161859abae0bdb0b3dae98f9:0x140001010
  features:
    - and:
      - match: allocate or change RWX memory
      - api: CopyFile2
      - api: DeleteFileW
      - number: 0x00000001 = COPY_FILE_FAIL_IF_EXISTS
      - number: 0x20 = sizeof(COPYFILE2_EXTENDED_PARAMETERS)