At the first glance it looked like an easy challenge, we had the following image and the description stated that only one bit was flipped. So all we have to do to get the flag was to flip that bit again. Easy, huh? Well, no. Downloading the image we find Read more…
Initials In that challenge we got a .vhd file (Virtual Hard Disk) Running file on the file we got that result of file command on the vhd file So it’s a NTFS corrupted image so let’s try to mount it and fix it with chkdsk So let’s check the files Read more…
Approaching the challenge we only get a simple description: nc 167.172.124.190 9002 Starting up by fuzzing the server with variable lengths of input, we always got the Bad Flag response but with varying time frames based on the input length then it wasn’t long until we realized that our input Read more…
First of all: Who are we?! We are a team consisting of independent Security Researchers,Bug Hunters and Developers working separately in various Tech Companies .. and we like to play CTFs from time to time, so this is a writeup about the last competition we enrolled to which we got First Read more…