Facebook has been hit by another clickjacking worm attack.

In the new attack, the worm updates a user's Facebook profile to indicate that they like a page called "101 Hottest Women in the World." Clicking on the link leads to a picture of actress Jessica Alba containing a clickjacking link. Other variations on the attack seen this week have offered a "free Farmville secrets e-book," a complimentary online viewing of Sex and the City 2 or the Ultimate Fight Club, as well as promises of naked celebrities.

Also known as likejacking, clickjacking attacks exploit the "like" button functionality that Facebook developed for third-party sites. The attack tricks a user into clicking the "like" button -- oftentimes by overlaying it with a fake link -- which generates a status update on the user's Facebook page, including a link to the attack.

"Presumably, somebody's making money from all this," said Richard Cohen of SophosLabs on the company's blog. "Though we still haven't seen this technique being used as an attack vector to infect users, it's still an underhanded and malicious technique, and it's driving swarms of people to pages serving up adverts."

Full story: InformationWeek