[BUGS] Constant SSH login spam

[Jerahmy Pocott]

Hey,

Is anyone else seeing massive amounts of SSH login attempts on their  
servers? Is there some recent SSH vulnerability that I didn't hear  
about? My firewall here is constantly blocking connections, around 200  
or so per day.. Then on a server that actually allows remote ssh  
connections I get security log files going into the megabytes listing  
things like:

Feb  3 03:31:57 beastie sshd[65656]: Invalid user a from 190.76.248.24
Feb  3 03:32:00 beastie sshd[65658]: Invalid user b from 190.76.248.24
Feb  3 03:32:02 beastie sshd[65660]: Invalid user c from 190.76.248.24

Going through millions of names and this server requires an RSA key  
pair to connect, yet they keep trying for hours and hours on end.. Is  
there some sort of virus/botnet thing that does this automatically  
trying to harvest logins and spread? It just seems too stupid even be  
a person using some script..