I found a little gem on Twitter (mentioned by @amitchell01): the VCDX Timer app used in the actual defense. It’s been made public for use in mock defense panels.

vcdx

Download it here: http://www.definedbysoftware.com/wp-content/uploads/2013/08/timer.html or grab a copy from my blog in ZIP-format: VCDX Timer on VirtualLifestyle.nl