Writeup author: fsharp Introduction I had a little free time during the weekend and played bi0sCTF 2025 with DeadSec. Out of all challenges, I managed to solve two reverse engineering challenges and one cryptography challenge. The first one I solved is avernos, which I also got first blood on! Problem description Author: the.m3chanic An ancient engine stirs in the dark. It speaks no language you know.

Writeup author: fsharp (The heading above can't show more than 3 question marks so this will have to do...) Introduction I played IrisCTF 2025 with DeadSec and checked out a variety of challenges. This writeup is on the reverse engineering challenge I solved during the CTF, which is ???????? and has only 7 solves. We were the 6th team to solve it. Problem description Author: nope where is this challenge? what is this challenge?

Writeup author: fsharp Introduction For this year's UIUCTF, I played with the ADMinions team and mainly worked on reverse engineering and cryptography challenges. A challenge I solved during the CTF is tooooo fancy 😏, which I got second blood on and found to be very fancy indeed. Problem description Author: spicypete I really hope this challenge TiCkLes your fancy! It is my most cursed challenge yet.