The U.S. National Security Agency (NSA) has released guidance on how to detect and prevent infections of a bootkit called BlackLotus.
This bootkit bypasses Windows Secure Boot protections by taking advantage of a known flaw called Baton Drop.
The agency warns that threat actors could use this loophole to replace fully patched boot loaders with unpatched versions and execute the malware on compromised endpoints.
It’s worth noting that unlike firmware threats, Black Lotus is not a firmware threat, it focuses on the software portion of the boot process and hones in on the earliest software stage to achieve persistence and evasion.
Read more about this at the NSA’s Threat Analysis and Referral page.
BlackLotus was created to exploit a vulnerability in Microsoft’s UEFI firmware.
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