[vel0city]

shodan.io already has a pretty good database of SSH servers. Want to find servers running an old version of OpenSSH? Easily queriable.

https://www.shodan.io/search?query=OpenSSH_5.2+country%3A%22...

There's a decent chance your SSH server is already in this database and many others.

[usuallybaffled]

Very good point!