SLOTSCREAMER is an inexpensive device configured to access memory and IO, cross-platform and transparent to the OS - all by design with no 0-day needed.
The open hardware and software framework was presented and released at DEFCON 22
HALIBUTDUGOUT is a thunderbolt enclosure containing a SLOTSCREAMER device for attacking against thunderbolt hosts.
ALLOYVIPER is a thunderbolt cable cosmetically modified to look like a Displayport to VGA adapter to get unsuspecting individuals to attach to a HALIBUTDUGOUT
Project Overview: http://www.nsaplayset.org/slotscreamer
Full details, documentation, and code: https://github.com/NSAPlayset/SLOTSCREAMER
Video Demo: https://www.youtube.com/watch?v=SvnvOXXAxaI