decrypt-data-using-rsa-via-winapi.yml

rule:
  meta:
    name: decrypt data using RSA via WinAPI
    namespace: data-manipulation/encryption/rsa
    authors:
      - michael.hunhoff@mandiant.com
    scopes:
      static: function
      dynamic: call
    att&ck:
      - Defense Evasion::Deobfuscate/Decode Files or Information [T1140]
    mbc:
      - Cryptography::Decrypt Data::RSA [C0031.010]
    references:
      - https://docs.microsoft.com/en-us/dotnet/api/system.security.cryptography.rsacryptoserviceprovider.decrypt
  features:
    - or:
      - api: System.Security.Cryptography.RSACryptoServiceProvider::Decrypt