Andrea Barisani posted an a document to the USB Armory wik related to BadUSB:

BadUSB with USB Armory: “USB Armory as an Offensive Attack Platform”
by Jeroen van Kessel and Nick Triantafyllidis

This research explores the feasibility of performing attacks on computer systems with the use of USB Armory, a newly introduced device which is an ARM computer in the size of a USB stick. Exploiting the USB emulation capabilities of the device we propose and test an attack scenario using a rogue DHCP server installed on the device. Based on the success of this attack we extend the scenario to DNS hijacking and traffic diversion setups with the injection of malicious static routes into the routing tables of the victim machines. This attack was successfully executed on the latest versions of Ubuntu 14.04 and Windows 8.1. The premise of the attacks as well as the scenarios themselves are explained in detail throughout the extent of this report.

[I need to learn USB-based firmware security issues more, and how they interact with UEFI and other firmware technologies… Currently, this blog is not covering USB firmware security issues properly.]