NCSfck v1.2.0 – NCSFCK creates a database of important files like “/bin/login”. Run as a cronjob for maximum effectiveness. Monitors for backdoor(s) and other trojan(s). web site
You can download it from the following link: https://packetstormsecurity.com/files/download/12772/ncsfck.tar.gz
Source: https://packetstormsecurity.com/files/12772/ncsfck.tar.gz.html

