Author: lodsb
Language: C/C++
Upload: 7:30 PM 06/29/2021
Platform Unix/linux etc.
Difficulty: 2.8
Quality: 5.0
Arch: x86-64
Description
Just a classic reverse engineering CTF, grab the executable, figure out how it works, decrypt the flag. Source code included.
pr0fdr4c on 9:32 AM 07/04/2021: Good oscillations of harmony there!
dev0 on 5:46 PM 07/04/2021: Interesting little twist and algorithm used.
ghsi10 on 6:41 PM 07/13/2021: very nice one :) thanks
Wolfgang7 on 10:39 AM 08/01/2021: Very easy, but nice!
chillywilly on 2:13 AM 08/04/2021: Clever algorithm! Struggled a bit, but really enjoyed this one :)
BitFriends on 1:05 PM 09/14/2021: nice and easy
amitsirius on 10:31 AM 10/29/2021: reverse and hop
MM on 5:59 PM 01/16/2022: great fun doing that! thanks!
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Solution by dev0:Write up with a C source solution.
Solution by shinlos:write up with ghidra decompilation
Solution by jixun:half reverse, half guessing...
Solution by MANA624:A slightly different flavor than many of the other puzzles. You can be highly analytical, or do a little guesswork. Either way it's rewarding
Solution by MM:Write-up for the challenge with disassembly by radare2
Share how awesome the crack me was or where you struggle to finish it! Stay polite and do not spoil the solution/flag!
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