Established 2026Sunday, 25 October 2026
presents

The CloudySec Digest

“The wires, edited.”
← Front PageThreat Intel Desk
Threat Intel

BlackX UEFI bootkit exploits Baton Drop flaw to bypass Secure Boot

Espionage actors weaponised the long-patched Baton Drop Secure Boot bypass into a full UEFI bootkit that disables select endpoint security products — a reminder that unpatched firmware remains a strategic blind spot.

Summary written by editorial AI · Source link below

Filed by BleepingComputer1 min readRead at source ↗

A new UEFI bootkit named BlackX, deployed in an espionage campaign in early 2026, exploited the old Baton Drop vulnerability to bypass Secure Boot and load a malicious driver designed to interfere with security solutions from Kaspersky and Avast. [...]

Editorial Analysis

Framed for the SOC Analyst desk

Why it matters

BlackX operates below the OS, evading standard EDR. SOC teams need updated detection logic targeting UEFI anomalies and tampered boot chains.

What to do

Deploy firmware integrity monitoring and add UEFI bootkit indicators from this campaign to detection rules.

Board brief

A new espionage bootkit highlights that unpatched firmware can render endpoint security investments ineffective.

Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.

Continue at the source
Read the full report at BleepingComputer

External link — opens at BleepingComputer in a new tab.

§
Continue with

More from the Threat Intel Desk