anti-analysis/anti-av

patch BitDefender Hooking DLL function

rule:
  meta:
    name: patch BitDefender Hooking DLL function
    namespace: anti-analysis/anti-av
    authors:
      - jakubjozwiak@google.com
    scopes:
      static: function
      dynamic: span of calls
    att&ck:
      - Defense Evasion::Impair Defenses::Disable or Modify Tools [T1562.001]
    mbc:
      - Defense Evasion::Disable or Evade Security Tools [F0004]
    examples:
      - 7cd03db8ed91a66920cc03026baa2df2a8370293b072218b9fbf6d9a21cad66b:0x180004EB0
  features:
    - and:
      - match: change memory protection
      - match: link function at runtime on Windows
      - string: "BdhkmInstallInlineHook"
      - optional:
        - match: write process memory
        - string: "bdhkm64.dll"
        - string: "bdhkm32.dll"

last edited: 2025-08-12 15:43:24