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maandag 27 december 2010

d0z.me: the evil URL shortener

I, like many people, have been closely following a lot of the chaos happening around the recent Wikileaks dump, and was particularly fascinated by the DDoS attacks by activists on either side. One tool specifically caught my eye in the midst of the attacks, however: the JS LOIC. The tool works simply by constantly altering an image file's source location, so that the browser is forced to continuously hammer the targeted server with HTTP requests. Not a sophisticated or technically interesting tool by any means, but conceptually interesting in that it only requires a browser to execute one's portion of a DoS attack. While the concept itself is not all that new, it got me thinking about the implications of such browser based DoS attacks. Clearly, it opens the door for the creation of a DDoS botnet without ever having to actually exploit the hosts participating in the network; all that is required is to get some Javascript to run in the participants' browsers. (GOON)

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