CuraSec

Plan active

BlackX UEFI Bootkit Exploits Baton Drop to Bypass Secure Boot

2026-10-24 14:29 UTC · BleepingComputer · read the source ↗ #uefi-bootkit#secure-boot-bypass#espionage
  • 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.
This entry was curated and judged by AI (Claude) with automated enrichment (CISA KEV / EPSS / public PoC). Verify against the original source before acting. Found a bad verdict? Report it — confirmed errors go to the corrections log.