1GN1tE/CTF_Writeups

Writeups of some Reverse Engineering challenges in CTFs I played

Python

Writeups

Click to expand:

BambooFox CTF 2021

Flag Checker Tags: Verilog
Better Than ASM Tags: LLVM

JustCTF[*] 2020

That's not crypto Tags: Python
reklest Tags: Rust, JavaScript
debug_me_if_you_can Tags: ptrace, anti-re
Rusty Tags: Rust, DOS, PE file structure
ABNF: grammar is fun Tags: Regex in C++
REmap Tags: Py2exe, Anti-Re in python.dll

Aero CTF 2021

Dummyper Tags: memdump, crypto

zer0pts CTF 2021

Infected Tags: Character Device
Super Secret Login Tags: AutoIt, Cheat Engine
Syscall 777 Tags: syscall, SECCOMP, BPF

BsidesSF 2021 CTF

Keygenme Tags: keygen, .NET
Relaunch Tags: Bindiff

UTCTF 2021

UTCTF Adventure ROM Part 3 Tags: GameBoy

BlueHens (UDCTF) 2021

compUDer Tags: VM
watman Tags: wasm
Entropy Tags:

VolgaCTF 2021 Qualifier

Snake Tags: wasm, game

UMassCTF 2021

Chains Tags: ARM, optimize me

ångstromCTF 2021

Infinity Gauntlet Tags: PPC
FLag Submission Server Tags: server binary
Lockpicking Tags: virtual lock
Dysfunctional Tags: dynamic encryption

Midnight Sun CTF 2021 Quals

murmur Tags: hash
Blueberry Pop Tags: time based enc
oVER9000 Tags: custom stream cipher

S4CTF 2021

RE Diary Tags: enc
Water Color Tags: apk
Dive in to Numbers Tags: maths

3kCTF-2021

Crackme Tags: VM
Layers Tags: LLVM Obfuscation
Microscopic Revenge Tags: nanomites , windows

Pwn2Win CTF 2021

The Return of Too Slow Tags: optimize me , DOS

Zh3r0 CTF V2

Sabloom Text 6 Tags: app registration
OptimiseMe Tags: VM , optimize me
Pyaz Tags: VM , ecnrypted layers

Others