A backdoor entry page was found on the site. It is used to remote access a compromised site and modify its files or database. It has multiple names, like Filesman, C99shell, Bd00r, "Windows1" and many others.
Any web site
This malware is generally hidden on .php file. Sign up here to get it cleaned: http://sucuri.net/signup
Malware dump (sample of malware):
No dump available.