Defcon is over for another year. Well I think the guys went ahead and redefined what constitutes a good CTF yet again. Hard and focused, but very good and I don’t know how I feel about going back to other CTFs now. Still let’s move forward with a discussion about these trio of Cyber Grand Challenge binary problems we received over the weekend.

Cool challenge this one based on an interesting article published recently. We’re given the following clue

Really quick writeup while I remember. The clue consists of a pcap only. The pcap contains USB packet captures.

Here’s something new for my blog. I finally tackled a mobile challenge. In the past I basically ignored them or at most, decompiled them to Java source and did a little fiddling. No way, not anymore, time to tackle one!