Cracking Cracking

Reverse binaries and crack executables.

This series of challenges will help you understand the inner workings of compiled languages. Disassemble the binaries provided to solve the crackmes at the assembly level.

Prerequisites:
– Advanced understanding of assembly languages on various architectures (x86, ARM, MIPS ...).
– Understanding of the different executable formats (ELF, PE, etc.).
– Mastery in the use disassemblers and debuggers.

challenges 70 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide ELF x86 - 0 protection 14% 49477 5 g0uZ 10 7 October 2006
pas_valide ELF x86 - Basic 11% 39960 5 g0uZ 10 7 October 2006
pas_valide PE x86 - 0 protection 7% 22502 5 alejandr0 7 11 November 2012
pas_valide ELF C++ - 0 protection 4% 12037 10 sourcePerrier 6 13 July 2016
pas_valide Godot - 0 protection 1% 2815 10 Elf 5 10 June 2022
pas_valide PE DotNet - 0 protection 3% 11030 10 Geluchat 6 15 September 2014
pas_valide APK - Introduction 1% 2269 15 algorab 5 17 October 2022
pas_valide ELF MIPS - Basic Crackme 2% 4725 15 sar 2 9 July 2018
pas_valide ELF x64 - Golang basic 1% 3242 15 jenaye 3 8 November 2018
pas_valide ELF x86 - Fake Instructions 3% 9352 15 kmkz 6 21 February 2010
pas_valide ELF x86 - Ptrace 3% 8226 15 g0uZ 3 27 November 2009
pas_valide Godot - Bytecode 1% 1294 15 Elf 1 10 June 2022
pas_valide WASM - Introduction 1% 1603 15 Cyxo 2 26 March 2021
pas_valide APK - Flutter Debug 1% 715 20 extiop 1 19 June 2022
pas_valide ELF ARM - Basic Crackme 2% 4595 20 0xmitsurugi 7 13 July 2016
pas_valide ELF x64 - Basic KeygenMe 1% 1876 20 fr0g 3 2 September 2020
pas_valide Unity3D Save handling 1% 269 20 Lumy 2 21 July 2023
pas_valide Godot - Mono 1% 828 20 Elf 1 10 June 2022
pas_valide PE DotNet - Basic Anti-Debug 1% 1711 20 nqnt 3 24 March 2021
pas_valide PE DotNet - Basic Crackme 1% 1326 20 nqnt 3 14 April 2021
pas_valide PYC - ByteCode 2% 5489 20 Thanat0s 9 3 July 2013
pas_valide Basic ? crackme 1% 328 25 Dvorhack 1 14 March 2025
pas_valide ELF x86 - No software breakpoints 2% 4157 25 yodzeb 9 2 October 2013
pas_valide Lua - Bytecode 1% 925 25 Bernstein 2 25 March 2021
pas_valide MachO x64 - keygenme or not 1% 1610 25 /bin/ls 2 14 April 2017
pas_valide ELF ARM - crackme 1337 1% 2562 30 2 3 February 2011
pas_valide ELF x86 - CrackPass 2% 5497 30 Tosh 5 3 February 2011
pas_valide ELF x86 - ExploitMe 2% 4621 30 kmkz 5 3 February 2011
pas_valide ELF x86 - Random Crackme 1% 3676 30 kmkz 3 3 February 2011
pas_valide GB - Basic GameBoy crackme 1% 1439 30 jambon69 2 14 September 2018
pas_valide PDF - Javascript 1% 1673 30 koma 1 14 February 2012
pas_valide PE x86 - Xor Madness 1% 951 30 ENOENT 3 17 July 2019
pas_valide Powershell DeObfuscation 1% 613 30 hat.time 2 2 April 2021
pas_valide ELF ARM - Crypted 1% 654 35 koma 2 4 September 2012
pas_valide ELF x64 - Crackme automating 1% 1198 35 0xmitsurugi 7 14 August 2018
pas_valide EVM - Bytecode 1% 19 35 Elf 0 14 March 2025
pas_valide Godot - 3D model 1% 511 35 Elf 1 10 June 2022
pas_valide NRO ARM - Switch homebrew 1% 131 35 Elf 0 21 July 2023
pas_valide PE x86 - SEHVEH 1% 1314 35 Thanat0s 1 4 May 2013
pas_valide APK - Anti-debug 1% 2863 40 cryptax 3 18 December 2012
pas_valide APK - Insomni’Droid 1% 1752 40 cryptax 1 4 March 2012
pas_valide ELF x64 - Rust backdoor 1% 177 40 Elf 0 21 July 2023
pas_valide ELF x64 - Rust Crackme 1% 189 40 extiop 1 17 October 2022
pas_valide PE x64 - UEFI Secure Boot 1% 158 40 Solden 1 10 May 2023
pas_valide APK - Root My Droid 1% 1231 45 koma 1 26 February 2012
pas_valide ELF x64 - Nanomites - Introduction 1% 821 45 Phenol 4 4 March 2018
pas_valide ELF x86 - Anti-debug 1% 1930 45 Tosh 4 3 June 2012
pas_valide PE DotNet - KeygenMe 1% 299 45 nqnt 1 14 April 2021
pas_valide PE x64 - Tables in shambles 1% 106 45 0xTRIKKSS 0 28 December 2023
pas_valide PE x86 - AutoPE 1% 893 45 Gr4ph0s 3 5 August 2011
pas_valide PYC - Self Modifying (Byte)Code 1% 109 45 Njörd 1 28 December 2023
pas_valide PYC - Snakeygen 1% 196 45 erk3 0 17 October 2022
pas_valide ELF x86 - KeygenMe 1% 940 50 int_0x80 5 20 July 2011
pas_valide HackerMan 1% 93 50 LordRoke , Stealer , Sengengie 1 10 May 2023
pas_valide Unity - Mono - Basic Game Hacking 1% 148 50 0x0ff 1 17 October 2022
pas_valide WASM - Find the NPC 1% 276 50 Cyxo 3 26 March 2021
pas_valide PE DotNet - Memory Protect 1% 16 55 Vozec 0 14 March 2025
pas_valide Bash - VM 1% 337 60 govlog 2 25 March 2021
pas_valide ELF x64 - KeyGenMe 1% 182 60 rene-d 1 12 November 2020
pas_valide ELF x64 - Anti-debug and equations 1% 448 65 0xmitsurugi 4 18 July 2016
pas_valide Unity - IL2CPP - Basic Game Hacking 1% 70 65 0x0ff 0 21 July 2023
pas_valide ELF x64 - Nanomites 1% 439 70 Phenol 2 4 March 2018
pas_valide ELF x86 - Packed 1% 452 70 Tosh 3 18 October 2011
pas_valide PE x86 - RunPE 1% 1048 75 Thanat0s 5 16 December 2013
pas_valide PE32+ - KeygenMe 1% 13 85 Redouane 0 14 March 2025
pas_valide ELF x86 - VM 1% 647 90 Thanat0s 7 16 June 2013
pas_valide ELF x64 - Hidden Control Flow 1% 162 100 so3 1 18 November 2020
pas_valide Ringgit 1% 109 110 Cryptanalyse 2 6 October 2019
pas_valide Voracious Nanomites 1% 26 110 Kasen 0 21 July 2023
pas_valide White-Box Cryptography #2 1% 74 130 Cryptanalyse 1 17 July 2019

Challenge Results Challenge Results

Pseudo Challenge Lang Date
sto Cracking  PE x86 - AutoPE fr 21 August 2025 at 23:26
FearNyx Cracking  ELF x64 - Basic KeygenMe fr 21 August 2025 at 23:22
sto Cracking  ELF x64 - Automatisation du crackme fr 21 August 2025 at 22:51
Toitoise Cracking  PE DotNet - Basic Anti-Debug fr 21 August 2025 at 22:51
Toitoise Cracking  Godot - Mono fr 21 August 2025 at 22:31
leonus Cracking  PE x86 - 0 protection fr 21 August 2025 at 22:14
leonus Cracking  ELF x86 - Basique fr 21 August 2025 at 21:57
leonus Cracking  ELF x86 - 0 protection fr 21 August 2025 at 21:53
m0rd3xx561 Cracking  ELF x86 - Basique fr 21 August 2025 at 21:51
m0rd3xx561 Cracking  ELF x86 - 0 protection fr 21 August 2025 at 21:44