PUMAKIT is a sophisticated loadable kernel module (LKM) rootkit that employs advanced stealth mechanisms to hide its presence and maintain communication with command-and-control servers.

ESET researchers analyzed previously unknown Linux backdoors that are connected to known Windows malware used by the China-aligned Gelsemium group, as well as to Project Wood.

Perfctl is particularly elusive and persistent malware employing several sophisticated techniques

OrBit is a new Linux malware that hijacks the execution flow, evading and gaining persistence to get remote access and steal information.