create executable heap

rule:
  meta:
    name: create executable heap
    namespace: load-code/shellcode
    authors:
      - moritz.raabe@mandiant.com
    scopes:
      static: function
      dynamic: span of calls
    mbc:
      - Memory::Allocate Memory [C0007]
  features:
    - and:
      - or:
        - basic block:
          - and:
            - api: kernel32.HeapCreate
            - number: 0x40000 = HEAP_CREATE_ENABLE_EXECUTE
        - call:
          - and:
            - api: kernel32.HeapCreate
            - number: 0x40000 = HEAP_CREATE_ENABLE_EXECUTE
      - optional:
        - api: msvcrt.memcpy
        - api: ntdll.RtlCopyMemory
        - api: ntdll.RtlMoveMemory