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Facebook application turns users into attackers

An application for the popular social networking website can be used to direct a denial-of-service attack against an innocent victim

ARE you a member of an antisocial network? It seems that unwary Facebook users can be tricked into attacking innocent websites without knowing it.

A team from the Foundation for Research and Technology in Heraklion, Greece, created an application called FaceBot whose ostensible purpose was to present a striking photo to users every day. However, each time a user accessed the application, it also downloaded four images from a targeted website – the team’s own – which it presented in hidden frames invisible to the user.

At the peak of FaceBot’s popularity, its 1000 or so users had significantly increased the data transfer from the test website, straining its web server. The work will be presented at this year’s in Taipei, Taiwan, next month.