| Password (Obfusacted) |
dark_knight |
happy reading. |
2026-03-13 15:27 |
View |
| my first low-medium crack me by whekkees |
Ploxied |
Understanding XOR Encryption |
2026-03-13 13:21 |
View |
| sh0uld_b3_e4zy |
PieterEdoardo |
'Solution' and 'patch'. Also available on my GitHub https://github.com/PieterEdoardo/Reverse_engineering_write_ups/blob/main/crackmes/sh0uld_b3_e4zy/README.md |
2026-03-12 20:59 |
View |
| really easy |
dantebr |
How to pass manual |
2026-03-11 18:03 |
View |
| GetToKnow-v0.1 |
suratgeshi |
|
2026-03-10 17:45 |
View |
| The Alchemist's Lock |
Frantz04 |
|
2026-03-09 15:50 |
View |
| FPDTP |
Cyberdev |
First writeup for this challenge
A full reverse engineering walkthrough of toasterbirb's FPDTP — a covert channel challenge where two binaries communicate by encoding messages into Unix file permission bits. Covers static analysis with strings/objdump, discovering the shared /tmp/fpdtp_pipe channel, building a real-time Python interceptor, and reverse engineering the nibble-split encoding scheme to decode the full conversation. No prior knowledge of covert channels required — everything is explained from scratch. |
2026-03-08 23:31 |
View |
| Fixed Easy Crackme |
SzynSzyl144Hz |
|
2026-03-08 21:37 |
View |
| Froggy CracMe |
nielbtw |
|
2026-03-07 16:08 |
View |
| Monster CrackMe 1.0 (MCM) |
Pmtrx |
|
2026-03-07 03:22 |
View |
| ASCII_CRACK |
nielbtw |
|
2026-03-07 02:22 |
View |
| GDB basics |
PieterEdoardo |
It's also hosted on GitHub https://github.com/PieterEdoardo/Reverse_engineering_write_ups/blob/main/crackmes/GDB_basics/README.md |
2026-03-07 00:04 |
View |
| ZEXOR-v1(Linux version) |
0xZhado |
Identifying methodologies of solving the challenge |
2026-03-06 17:30 |
View |
| Fixed Easy Crackme |
BigFrostyGuy |
|
2026-03-06 15:55 |
View |
| int overflow |
Cyberdev |
Found one password. Then found infinite.
Complete walkthrough - Ghidra decompilation, live overflow observation in GDB registers, and a Python script that predicted and confirmed 10 valid passwords against the real binary. |
2026-03-06 10:18 |
View |
| ASCII_CRACK |
a.v.e.r |
|
2026-03-06 07:41 |
View |
| Quite a simple crackme |
Duck |
This is my first time submitting a writeup. I hope this is the correct format. (I assume the writeup goes in the attached files, and the "Infos" section is just... extra information?) |
2026-03-05 14:32 |
View |
| crackit |
wsy |
|
2026-03-05 01:24 |
View |
| CrackIt;) |
wsy |
|
2026-03-05 00:12 |
View |
| keygenme90 |
swansizz |
|
2026-03-04 17:51 |
View |
| XORcist |
PieterEdoardo |
It's an md because It's hosted on my GitHub page as well in the same https://github.com/PieterEdoardo/Reverse_engineering_practice/blob/main/crackmes/XORcist/README.mdformat |
2026-03-04 17:07 |
View |
| crackit |
Snorky |
|
2026-03-04 11:17 |
View |
| Quite a simple crackme |
0xZhado |
Methodology of solving, overview about the program using radare2 by 0xZhado |
2026-03-03 22:57 |
View |
| CrackIt;) |
Snorky |
|
2026-03-03 15:46 |
View |
| ZEXOR-v1(Linux version) |
QERR0R |
it was easy;) |
2026-03-03 06:38 |
View |
| X-0-R |
QERR0R |
getting flag without any decompile |
2026-03-03 03:05 |
View |
| Fatmike's Crackme #10 (crackmes.one CTF 2026) |
n.qber |
|
2026-03-02 17:04 |
View |
| Not to simple KeyGen V2 |
djd320 |
|
2026-03-01 21:02 |
View |
| Fatmike's Crackme #10 (crackmes.one CTF 2026) |
Frantz04 |
|
2026-03-01 21:00 |
View |
| Quite a simple crackme |
QERR0R |
try to crack the script by these few 3 steps. |
2026-03-01 18:24 |
View |
| razkom_v1.1 |
zaneeezz |
https://zanezhub.github.io/posts/Reverse-Challenge-2/ |
2026-03-01 16:36 |
View |
| Keygen Me |
Frantz04 |
|
2026-03-01 11:43 |
View |
| The Seven Gates of Nullhaven |
djd320 |
|
2026-03-01 11:09 |
View |
| razkom_v1.1 |
Aleksei_Radchenkov |
|
2026-03-01 01:42 |
View |
| notes |
EljaTux |
Flag not Included, Author: EljaTux, for Crackme: notes by toasterbirb |
2026-02-28 20:32 |
View |
| MCM 5.0 |
djd320 |
CCCCCChCCCCiCM&CCCCCCCGCCCCCCX#CCKCCC9CCCCCCCCCCCCCCCCCCCCmVC*CC |
2026-02-28 14:28 |
View |
| Gopher Secrets |
Aleksei_Radchenkov |
|
2026-02-28 02:04 |
View |
| Quite a simple crackme |
blocky967 |
My first crackme writeup. Static analysis with Binary Ninja. |
2026-02-27 21:08 |
View |
| SirCrackaLot v2 |
djd320 |
|
2026-02-27 19:15 |
View |
| Test my obf. PLS |
TheSwedishLord |
Static deobfuscation of "PROTECT BY NONAME" — a 6-layer Python protector.
Layers peeled (no code executed, pure bytecode inspection):
1. Hex-escaped imports → zlib, base64, marshal
2. Base85 decoding → 1069-byte encrypted blob
3. XOR decryption → 32-byte cyclic key (a8a250...0133)
4. zlib decompression → 1571 bytes of marshal data
5. Marshal deserialization → Python code object
6. Variable name demangling → _Ω + random suffix → real names
Result: The recovered program is a rainbow text animation displaying "hello" with cycling HSV colors via ANSI 24-bit escape sequences.
Automated solver and 22 unit tests included in the zip. |
2026-02-27 16:19 |
View |
| impossible console crack me |
TheSwedishLord |
Static analysis writeup — no execution required.
The binary is a custom packer embedding an encrypted crackme in its PE overlay.
Encryption: XOR with a 16-byte key + ROL8(3), key stored in a DEADC0DE/DEADBEEF trailer.
Writeup covers the full process: triage, trailer parsing, algorithm recovery,
decryption verification, and password extraction from the inner PE.
Includes a Python solver that automates the entire pipeline. |
2026-02-27 15:47 |
View |
| Schizo |
0xh4ty |
Really enjoyed this challenge. Schizo is a well designed crackme that combines anti debugger checks, runtime loaded code, and nontrivial validation logic in a clean way. The mix of static analysis and runtime behavior makes it especially rewarding to reverse. Thanks for the fun challenge. |
2026-02-26 18:27 |
View |
| Prometheora |
TheSwedishLord |
Analysis by: RootRevenant |
2026-02-26 06:22 |
View |
| Type Punning |
WhiteLotus |
|
2026-02-25 19:46 |
View |
| Custom packed crackme |
TheSwedishLord |
Analysis by: RootRevenant |
2026-02-25 17:13 |
View |
| darkelf_keygenme_2 by darkelf |
ToMKoL |
Write up with keygen (+ src) |
2026-02-25 17:02 |
View |
| Insane password crackme |
Frantz04 |
|
2026-02-25 11:11 |
View |
| Beginner Challenge |
OuSen |
|
2026-02-25 01:58 |
View |
| GrannysQuest |
ap3x |
A keygen and write up are included |
2026-02-25 01:12 |
View |
| Easy Peasy |
OuSen |
|
2026-02-24 04:11 |
View |
