Description: A Remote and malicious iframe was identified. It uses CSS to hide the iframe from anyone visiting the site.
This is a very common malware infecting thousands of sites (Aug 2012). Some of the domains being used:
http://wielerclinics.nl/32864443.html
Those links lead to multiple exploit kits affecting desktop (Windows) users.
Affecting: Any web site (no specific target).
Clean up: Malware is hidden at the index.php or index.html files.
Malware dump: