some links related: - https://www.defcon.org/images/defcon-22/dc-22-presentations/Fitzpatrick-Crabill/DEFCON-22-Joe-FitzPatrick-Miles-Crabill-NSA-Playset-PCIe.

some links related: - https://www.defcon.org/images/defcon-22/dc-22-presentations/Fitzpatrick-Crabill/DEFCON-22-Joe-FitzPatrick-Miles-Crabill-NSA-Playset-PCIe.pdf https://www.defcon.org/images/defcon-22/dc-22-presentations/... - https://www.youtube.com/watch?v=OD2Wxe4RLeU https://www.youtube.com/watch?v=OD2Wxe4RLeU