enumerate processes on remote desktop session host

rule:
  meta:
    name: enumerate processes on remote desktop session host
    namespace: host-interaction/process/list
    authors:
      - michael.hunhoff@mandiant.com
    scopes:
      static: function
      dynamic: thread
    att&ck:
      - Discovery::Process Discovery [T1057]
    examples:
      - 6f99a2c8944cb02ff28c6f9ced59b161:0x414B70
  features:
    - and:
      - or:
        - api: wtsapi32.WTSEnumerateProcesses
        - api: wtsapi32.WTSEnumerateProcessesEx
      - optional:
        - or:
          - api: wtsapi32.WTSFreeMemory
          - api: wtsapi32.WTSOpenServer