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http://blog.wired.com/27bstroke6/2008/09/researchers-use.html“>

Researchers Use Facebook App to Create Zombie Army – Update

http://blog.wired.com/27bstroke6/2008/09/researchers-use.html“>

Computer researchers built a tool that demonstrates how hackers could silently turn Facebook users into a powerful zombie army that can attack other websites or scout for vulnerable sites on the net.

http://blog.wired.com/27bstroke6/2008/09/researchers-use.html“>

Their demo attack was very simple and surprisingly effective. They created an application that displayed a new National Geographic photo daily on a user’s Facebook page — though the app was not approved of by National Geographic.

http://blog.wired.com/27bstroke6/2008/09/researchers-use.html“>

But in the background, the application is also downloading three large photos from a targeted site. But the user’s browser never displays the images. Any application with enough users will then act like a denial of service attack flooding the chosen website with requests for data. The user stops being a part of the attack after logging out, but joins again every time he returns.

http://blog.wired.com/27bstroke6/2008/09/researchers-use.html“>