Malicious Facebook Application

Researchers have built a facebook program which would dupe a large number of users into downloading a appplication which could cripple a web site

The researchers developed "Photo of the Day," which showed a new National Geographic photo daily. In the background , when the application is clicked everytime , it sends a 600 K-byte HTTP request for images to a victim's Web site.

The Facebot could also be programmed for other nefarious activities. An attacker could create an application that uses JavaScript and HTTP requests to check hosts had certain ports open. Other means of attack include an application that delivers a malicious link in order to infect a Web site with malware.