Challenges: Reverse Engineering
HanoiPub [484 points, 3 solves]
Welcome to the HanoiPub! To enter you will need to provide the bouncer the secret passphrase. Can you get it?
Hint: ATMega 328P
Download: hanoipub.tgz
Mail Downloader [509 points, 0 solves]
We found this program used to download mails, among the features:
- Download new mails.
- It "encrypts" the password used to login on mail server
- It generates a password per-user.
Download: maildownloader.tgz
Powder Toy CPU [500 points, 1 solve]
Why reverse a program when you can reverse a computer & CPU with custom ISA?
Update: Open me with http://powdertoy.co.uk
Download: powdertoy.tgz
Source code and author’s writeup: github, blog post
Kompreplicants [446 points, 8 solves]
Someone thinks it's safe to hide his data compressing it... I don't think so...
Download: kompreplicants.tgz
Pasticciotto [0 solves]
We found this executable and we think it must have something in common with the baddies' infrastructure. We would be glad to understand what data they are hiding from us...
Update: maybe the real architecture isn't x86_64...
nc pasticciotto.chall.polictf.it 31337
Update: Updated client (and server)
Download: pasticciotto.tgz