encrypt or decrypt data via BCrypt

rule:
  meta:
    name: encrypt or decrypt data via BCrypt
    namespace: data-manipulation/encryption
    authors:
      - michael.hunhoff@mandiant.com
    scopes:
      static: function
      dynamic: thread
    att&ck:
      - Defense Evasion::Obfuscated Files or Information [T1027]
    mbc:
      - Cryptography::Decrypt Data [C0031]
      - Cryptography::Encrypt Data [C0027]
  features:
    - and:
      - or:
        - api: BCryptDecrypt
        - api: BCryptEncrypt
      - optional:
        - api: BCryptOpenAlgorithmProvider
        - api: BCryptCloseAlgorithmProvider
        - api: BCryptImportKey
        - api: BCryptImportKeyPair
        - api: BCryptGenerateKeyPair
        - api: BCryptGenerateSymmetricKey
        - api: BCryptDestroyKey