BHIS CTF@Shmoocon 2019 - Blockchain Challenge
I had the Blockchain Challenge, or whatever it was actually called, still kicking around even though Shmoocon and the Blackhills Infosec CTF has ended. I thought this was a neat challenge and I really wanted to figure this one out. Here's the challenge description: Thanks for joining our team on this one. We are so close to catching the infamous hacktivist known as "gh0st Plague". We were informed that he is planning another DDoS attack against a major financial institution. gh0st Plague recruits various botnet owners from around the net and always pays in Bitcoin. We believe that the following Bitcoin address is one of gh0st Plague's wallets. Knowing where and when gP is making payments should help us catch him but we need some solid evidence. This is where you come in. With your expertise in Blockchain analysis it shouldn't be too hard for you to determine if he let his ego get to him and left any clues behind. Good luck! 3AHnpGWb1EUSYKZUbgxfAkzFfmJeKLL3hH ...