Just recently I have had comments on my web site from users who don't exist. I am running the latest issue of Geeklog. Following is an example:
Username: ouplnfuc (18.104.22.168)
reMKPR peqarwmqjfyh, kjtbuoqifrlfsg
, [link=http://hjkopknsztkjqln.com/]opknsztkjqln[/link], http://mnyyxnelbjwlvsv.com/
I have slightly changed the letters in the urls.
How is this being done and how can I stop it?