BlackX UEFI Bootkit Exploits Baton Drop to Bypass Secure Boot

Sat, 24 Oct 2026 14:29:02 +0000

Engineer — Plan: Baton Drop is described as an old flaw, meaning patches exist — audit UEFI firmware versions and apply Secure Boot DBX revocation list updates across physical and bare-metal hosts to block this bypass class.
SOC/IR — Plan: UEFI bootkits load before the OS and actively interfere with EDR agents; build or review detection coverage for anomalous driver loads at early boot and Secure Boot policy tampering, and consider whether firmware integrity monitoring is in scope.
Leader — Learn: A nation-state espionage campaign deploying UEFI-level persistence that defeats endpoint security tools is a useful data point for risk conversations, but no vendor breach or immediate organizational action is indicated without sector-specific targeting context.

Secure-Boot-Bypass on CuraSec