Careful what you click....

"It has hooks for boards, e-mail, and blogs," said Alperovitch. When a user on an infected PC posts a message to a forum or blog, or sends a message via popular Web-based mail services such as Hotmail, Gmail, and Yahoo Mail the Trojan adds text to the entry or message.

"It inserts 'Have you seen this link?' along with a link to what seems to be a video," Alperovitch said. Anyone clicking on the link will only find their system infected. "He's not targeting particular sites. Instead, his code is generic enough to work on lots of sites." Secure Computing has seen evidence of the bogus posting on messages forums, including one for Men's Health, as well as "thousands of blog entries," said Alperovitch.
http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9011...c=news_ts_head