Today and yesterday’s 22C3 included tons of fun hacker stuff. Highlights from day 00 and 01 included a slew of topics from politics to hardcore geekery. We toured the CCC‘s annual hackfest to bring you the best of the new hacks.
We commence our tour with Hack-A-Day’s friend Dan “I Like Big Graphs and I Cannot Lie” Kaminsky. Dan presented yummy OpenGL graphics and DNS cache proof of the Sony Rootkit around the world. He also released Xovi, a tool which allows you to do network visualizations in realtime. Realtime: we dig it.
Next on to fun scanning of 3G wireless networks! The team of btk and ahzf presented a rather thorough intro to GPRS/UMTS packet theory (we use the term theory rather concretely here because packet loss and lag are rampant on cellphone based data networks all over the world). Slides for the talk in PDF format are here. They showed how to circumvent packet filtering / port filtering / data type filtering on data networks. This can be extremely useful when trying to run VoIP applications over a cellphone network since they are usually blocked.