Security
BlackX UEFI Bootkit Bypasses Secure Boot on Patched Windows Systems Missing Revocations
The Hacker News·October 23, 2026·1 min read
A new UEFI bootkit called BlackX has bypassed Secure Boot on patched Windows systems, targeting diplomatic organizations in Central Asia. Kaspersky attributes the attacks, which hit entities in Tajikistan, Uzbekistan, and Turkmenistan in early 2026, to China-linked APT41. The bootkit exploits missing revocation lists, enabling persistent malware installation even on updated systems.
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