http://www.flashtrack.net/target_urls/ has been emptied.
serve.com has obviously had .htaccess and httpd.conf in the
editor b/c the site now has security and control over random
directory access and redirects into serve.com's custom 404.
These ppl (flashtrack) are feeling the heat but my guess is
the dir has been renamed and they are still at it.
Kimmykim is right in what she said...
The problem remains with the fact that the surfers have to 'disinfect' their boxes.