Video from this CCC talk from Jethro has just showed up on Youtube:
https://firmwaresecurity.com/2015/12/29/uefireverse-lecture-at-ccc/
https://events.ccc.de/congress/2015/Fahrplan/events/7245.html
https://github.com/jethrogb/uefireverse
Click to access uefireverse.pdf