Hello,

I ran a quick scan of your site and found malicious code on the homepage. You can see the results of my scan here: http://www.blacklistdoctor.com/bld/diagnose.php?URL=cooperdesign.net&scan_id=10784

There are some hidden iframes that are sourcing in malicious content. (e.g. tvnameshop dot cn, peskostruikaz dot com, etc.)

You can request a full scan of your site from the link above. Please remove the malicious code from your site, and then request a review from Google webmaster tools. If your site is clean, Google will remove the warning.

Best,

Ameet