Further Information

After looking into logs, we have found some useful information on attack and the method used. I can post the log here if that is OK. During the research, found countless sites infected with this particular r57.php shell.

This is an annoying situation that we are in at the moment and we are in need of some quick help here please. We have a web site that uses PHP scripts in the shopping cart. There is also an installation of a blogging script (b2evolution) along with a links directory script as well. Lately we noticed that links on our web site were taking people away to a notorious web site where people could buy some crap. Upon investigation it was found that there...