Linux Rootkit 5 – Recent release of the famous linux rootkit. Contains backdoored versions of chfn, chsh, crontab, du, find, ifconfig, inetd, killall, linsniffer, login, ls, netstat, passwd, pidof, ps, rshd, syslogd, tcpd, top, sshd, and su. Also comes with bindshell, fix, linsniffer, thesniff, sniffchk, wted, and z2.
You can download it from the following link: https://packetstormsecurity.com/files/download/10533/lrk5.src.tar.gz
Source: https://packetstormsecurity.com/files/10533/lrk5.src.tar.gz.html