I host a couple of MT sites for customers one here at PVPS and another at a terrible host and have been getting slammed with mt-comment.cgi spam. The process will spiral out of control until the box almost shuts down. My only option has been to chmod 000 mt-comments.cgi. Attempts to rename it were useless as that script gets detected in about 30 seconds.
When doing a TCPdump, hundreds of hosts from all over the world are calling it so putting the hosts in iptables wouldn't work. My bandwidth is through the roof.
Any suggestions?
I'm going to ask the folks at MoveableType but I wanted to hear what you guys thought from a server perspective.