This appears to be the first UEFI bootkit that goes beyond Windows and targets Linux machines, according to ESET security researchers.

The first UEFI bootkit specifically targeting Linux systems has been discovered, marking a shift in stealthy and hard-to-remove bootkit threats that previously focused on Windows.

ESET researchers have uncovered a prototype UEFI bootkit targeting Ubuntu Linux, marking an expansion of bootkit attacks beyond Windows.

Cybersecurity researchers have shed light on what has been described as the first Unified Extensible Firmware Interface (UEFI) bootkit designed for Linux systems. "The bootkit's main goal is to disable the kernel's signature verification feature and to preload two as yet unknown ELF binaries via the Linux init process (which is the first process executed by the Linux kernel during system startup),

ESET's discovery of the first UEFI bootkit designed for Linux sendss an important message: UEFI bootkits are no longer confined to Windows systems alone.