https://www.bleepingcomputer.com/news/security/researchers-discover-bootkitty-first-uefi-bootkit-malware-for-linux/

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.

Named 'Bootkitty,' the Linux malware is a proof-of-concept that works only on some Ubuntu versions and configurations rather than a fully fledged threat deployed in actual attacks.