Low Orbital Ion Cannon

December 9th, 2010

Anonymous have mobilized. Well, a subset of Anonymous under the banner of Operation Payback have started attacking organizations that have discontinued services to WikiLeaks (at the time of writing there is no DNS name and it is located at After reading several articles on the subject, I was familiar with the tool that Anonymous was using to attack these sites. From what I can tell there are several versions of the tool named Low Orbital Ion Cannon (or LOIC for short). LOIC is a modified version of an open source load tester. It was modified to connect to an IRC channel and get a list of targets to start attacking.

This is interesting in and of itself as the users are joining an opt-in botnet. I did not have the time to download it and take a look but I did run into a JavaScript version that peaked my interest a bit. I went ahead and grabbed a copy of it and put it up here. It is pretty basic, you put the target url in the first box and launch with “IMMA CHARGING MEH LAZER”. After looking at a packet capture of the traffic it does exactly what you would expect it to, it opens several connections to the server in question. At this point it doesn’t do anything but http and https connections but it would be interesting to see it support other protocols such as SSH and DNS.

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