Major Web Sites Hit With Growing Web Attack

Excerpts from link below:
http://www.pcworld.com/article/id,143942-c...me/article.html

........Here's how an attack would work: the attacker searches for popular keywords, such as "Paris Hilton," on the Web site's internal search engine. But instead of conducting a normal search, the bad guy tacks an HTML (Hypertext Markup Language) command to the end of his search. This command that opens up an invisible iFrame window in the victim's browser that then redirects it to a malicious Web site, which then tries to install fake antispyware or a version of the Zlob Trojan Horse malware on the victim's PC..........

..........He believes that over 1 million Web pages have been infected using this technique.........

.....Hackers are increasingly looking for ways to install their code on trusted Web sites. In recent weeks, security vendors have found hundreds of thousands of Web pages affected by this and other similar attacks.........