Everything described here is based on a project I completed in early 2011, which was originally started several years earlier. While attending CanSecWest in 2009, Anibal Sacco and Alfredo Ortega from Core Security did a presentation on ’Persistent BIOS Infection’ where they demonstrated how it was possible to patch the BIOS to do some nasty/awesome things. Their Phrack write-up is here: http://www.phrack.com/issues.html?issue=66&id=7. At the time this seemed really cool, but I never ended up getting the chance to try it out. A year later I needed to do a term project for school, so I decided to revisit BIOS hacking, and implement some of it myself.


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