fsoc / words / ctf

Filter by tag EXTERNAL ART? CTF

Internetwache CTF 2016: SeverfARMCTF

Writeup for the ServerfARM task from the Internetwache CTF 2016.

Nuit du Hack CTF 2016: MatriochkaCTF

Writeup for the Matriochka task(s) from the Nuit du Hack CTF Quals 2016.

Internetwache CTF 2016: filecheckerCTF

Writeup for the filechecker task from the Internetwache CTF 2016.

SUT CTF 2016: dMd & serialCTF

Writeups for two tasks from the Sharif University CTF 2016.

CrackMe VII: Up a StreamCTF

Reversing an encryptor written in Java, decidedly overusing streams.

CrackMe VI: Simple EncryptionCTF

Decrypting file contents by reversing the encryption algorithm.

CrackMe V: ExatlonCTF

Reversing modern C++ is weird. Purely static analysis to lift out a flag generation algorithm... again!

CrackMe IV: Behind the ScenesCTF

I can see you! Reading the flag straight from the file.

CrackMe III: Impossible PasswordCTF

Purely static analysis to lift out a flag generation algorithm. Fun!

CrackMe II: Hacky BirdCTF

Solving a CrackMe wrapped in a well-known game.

CrackMe I: Bypass.exeCTF

Solving a very simple .NET CrackMe using dnSpy.