
On the front page of the site a hidden
IFrame has indeed been inserted and it loads a URL from another website.

This file in turn uses three IFrames to load three other URLs.

Two of the URLs are now down but the third contains an obfuscated JavaScript that uses exploits to download and run a file called
loader.exe. This file is a small downloader which downloads additional files that are different password stealing trojans, additional downloaders, et cetera. We detect all of the malicious files with our latest database update.
Update: The malicious IFrame has been removed from the front page and it's now safe to visit the site again.