CTF write-ups


CMU Binary Bomb Challenge - Level 6

Level 6 of the CMU Binary Bomb challenge.

BackdoorCTF 2017 - no-calm

h3rcul35 and starlord were having a heated conversation and to c00l down the furious starlord, h3rcul35 gave him a binary and said "The binary takes each 'character' byte of the flag as argument. Given this info, grab the flag. I hope you don't get angry :P". Show h3rcul35 that you stayed c00l by finding the flag.

EKOPARTY CTF 2017 - WarmUp

It's time to warm up your reversing skills!

CSAW CTF Qualification Round 2017 - tablEZ

Bobby was talking about tables a bunch, so I made some table stuff. I think this is what he was talking about...

SHA2017 CTF - WannaFly

My daughter Kimberly her computer got hacked. Now she lost all her favorite images. Can you please help me recover those images?

SHA2017 CTF - Stack Overflow

I had some issues implementing strong encryption, luckily I was able to find a nice example on stackoverflow that showed me how to do it.

SHA2017 CTF - asby

Eindbazen team member asby has by far been putting the most energy and time in creating the SHA2017 CTF. To honor his dedication and all his effort we created this challenge as an ode to him.

SHA2017 CTF - Malware Testrun

We heard a rumour that our website will be used to distribute malware. We believe we captured a test run of it. Can you find out what the malicious content will be?

PoliCTF 2017 - Tower

You are entering a Lab where you will be the experiment.