ROT13 This chall is just a basic ROT13 that we can decrypt using dcode:

La gazette de Windows For this chall, we had a .evtx file. The .evtx file extension is used for files that contain event logs on Windows operating systems. These logs are recorded by the Event V...

Dystylosaurus In this chall we just had a .sal file. After at least 10000000000 seraches on the web, we can finally know that the .sal extension is for: We find the tool Logic that could do t...

Aaarg This chall is a reverse chall. When looking at the executable in Ghydra, we can see what looks like a flag in the .rodata section: We then use r2. We use aaa to analyse the executable. ...

Ransomémoire In this chall of forensic, we are given a 2Gb memory dump of a windows machine. To analyse a memory dump, a geat tool is Volatility. In this chall, we coulnd’t use Volatility2 so we...

Hackbook Bonus For this chall, we needed to create an account on a website called Hackbook. When we access the website we can notice that there are a lot of posts. At first I tried to download the...

Hackbook This chall is split in 4 parts (Hackbook#1 to Hackbook#4). There is a Steganography chall that is called Hackbook Bonus #2 you can find it here Hackbook #1 Here is the challenge formula...

Disk Analysis For this challenge, we have a zip file containing a ReadMe.md and a suspectDisk.raw. The ReadMe.md file tells us: #Context Our informations are that a flag is hidden on this disk. H...

Precious - Machine [Easy] Port Enumeration First of all… Let’s do a basic Nmap scan: As we can see, there is nothing interesting… Except the web page that is redirected to http://precious.htb/...

Agile - Machine [Medium] Hello there. Today, we are going to look at the Agile room. This was my first medium and I took a lot of time on the foothold for some unknown reason :). Port Enumeration...