2023
Hello, folks! It’s been a long time since my last write-up and there goes a short one. Harem scarem was...
The Event HackTM CTF was an event hosted by WreckTheLine. It was a really nice event and there were some...
2020
Introduction This weekend FireShell wasn’t going to play CTFs, so I decided to look at the Defenit CTF by myself....
Introduction This weekend, we played Byte Bandits CTF and we finished 9th! It was a really good CTF, the level...
Introduction Writing shellcode is an art, it is something that I really like to do, because it sparks your creativity...
Introduction This weekend we played the Midnight Sun CTF 2020 Quals. There were a lot of nice challenges and good...
2019
Introduction This write-up is about the challenges PHP+1, PHP+1.5 and PHP+2.5, we were able to solve those three challenges with...
Description The description of the challenge is clear about what we will have to do: Reverse engineering a .NET Core...
Description As the name of the challenge implies, we are dealing with some sort of Docker escape and we need...
2017
MapOS é um sistema gratuito de código aberto para controle de ordens de serviço. Neste artigo descrevemos uma falha de...
There’s a binary file that checks for a password. $ file re100 re100: ELF 64-bit LSB executable, x86-64, version 1...