I've been using Register-Plus for a year and all of a sudden I've got hundreds of fraudulent new users registering on my site. My web host/ISP has looked at the network logs and says that each registration has this in common:
Mozilla/5.0 (Windows; U;
Windows NT 5.1; en-US; rv:18.104.22.168) Gecko/20100401 Firefox/3.6.3 GTB6 (.NET CLR
The weird thing is that even though I have hundreds of new users in the past 24 hours, the registration page has only been visited 9 times. So somehow, these guys are bypassing the registration page all together.
Is anyone else having this issue? Any suggestions?