Rafael "rasknikov" Correia

2019

Sunshine CTF 2019 - The Whole Pkg

Description I’ve stored all of my wrestling strategies in a state-of-the-art secret vault. I even wrote it in nodeJS, can’t...

Sunshine CTF 2019 - 16-bit-AES

Description Why so small? nc aes.sunshinectf.org 4200 Author: ps_iclimbthings Write-up Short write-up here. The server asked for a word to...

0CTF/TCTF 2019 Quals - zer0lfsr

Description Please enjoy the classical lfsr. zer0lfsr.tar.gz Attachment content chall.py keystream chall.py script from secret import init1,init2,init3,FLAG import hashlib assert(FLAG=="flag{"+hashlib.sha256(init1+init2+init3).hexdigest()+"}")...

0CTF/TCTF 2019 Quals - Ghost Pepper

Description Do you know ghost pepper? Let's eat. http://111.186.63.207:31337 Write-up Vitor B2e4gl3 started the enumeration of this challenge and was...

2018

Pwn2Win 2018 - GCM

These were the steps to resolve Pwn2Win 2018’s GCM challenge, a challenge about a critical vulnerability in Python’s cryptography package....

Pwn2Win 2018 - Attack Step [First Flag]

These were the steps to solve the First Flag of Attack Step. We solved this with little time left so...

ASIS CTF Finals 2018 - Gunshop and Gunshop II

One Frida script for two Flags ASIS 2018 Gunshop and Gunshop II challenges were about an Android app. And I...