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
validepas_valide ELF x86 - 0 protection 14% 54224 5 g0uZ 10 7 October 2006
validepas_valide ELF x86 - Basic 11% 43615 5 g0uZ 10 7 October 2006
validepas_valide PE x86 - 0 protection 7% 24978 5 alejandr0 7 11 November 2012
validepas_valide ELF C++ - 0 protection 4% 13797 10 sourcePerrier 6 13 July 2016
validepas_valide Godot - 0 protection 2% 4036 10 Elf 5 10 June 2022
validepas_valide PE DotNet - 0 protection 4% 12127 10 Geluchat 6 15 September 2014
validepas_valide APK - Introduction 1% 3185 15 algorab 5 17 October 2022
validepas_valide ELF MIPS - Basic Crackme 2% 5554 15 sar 2 9 July 2018
validepas_valide ELF x64 - Golang basic 1% 3858 15 jenaye 3 8 November 2018
validepas_valide ELF x86 - Fake Instructions 3% 10117 15 kmkz 6 21 February 2010
validepas_valide ELF x86 - Ptrace 3% 8976 15 g0uZ 3 27 November 2009
validepas_valide Godot - Bytecode 1% 1782 15 Elf 1 10 June 2022
validepas_valide WASM - Introduction 1% 2017 15 Cyxo 2 26 March 2021
validepas_valide APK - Flutter Debug 1% 1050 20 extiop 1 19 June 2022
validepas_valide ELF ARM - Basic Crackme 2% 5226 20 0xmitsurugi 7 13 July 2016
validepas_valide ELF x64 - Basic KeygenMe 1% 2385 20 fr0g 3 2 September 2020
validepas_valide Unity3D Save handling 1% 480 20 Lumy 2 21 July 2023
validepas_valide Godot - Mono 1% 1171 20 Elf 1 10 June 2022
validepas_valide PE DotNet - Basic Anti-Debug 1% 2051 20 nqnt 3 24 March 2021
validepas_valide PE DotNet - Basic Crackme 1% 1622 20 nqnt 3 14 April 2021
validepas_valide PYC - ByteCode 2% 5888 20 Thanat0s 9 3 July 2013
validepas_valide Basic ? crackme 1% 798 25 Dvorhack 2 14 March 2025
validepas_valide ELF x86 - No software breakpoints 2% 4520 25 yodzeb 9 2 October 2013
validepas_valide Lua - Bytecode 1% 1200 25 Bernstein 2 25 March 2021
validepas_valide MachO x64 - keygenme or not 1% 1808 25 /bin/ls 2 14 April 2017
validepas_valide ELF ARM - crackme 1337 1% 2842 30 2 3 February 2011
validepas_valide ELF x86 - CrackPass 2% 5970 30 Tosh 5 3 February 2011
validepas_valide ELF x86 - ExploitMe 2% 4963 30 kmkz 5 3 February 2011
validepas_valide ELF x86 - Random Crackme 1% 3945 30 kmkz 3 3 February 2011
validepas_valide GB - Basic GameBoy crackme 1% 1602 30 jambon69 2 14 September 2018
validepas_valide PDF - Javascript 1% 1855 30 koma 1 14 February 2012
validepas_valide PE x86 - Xor Madness 1% 1164 30 ENOENT 3 17 July 2019
validepas_valide Powershell DeObfuscation 1% 802 30 hat.time 2 2 April 2021
validepas_valide ELF ARM - Crypted 1% 775 35 koma 2 4 September 2012
validepas_valide ELF x64 - Crackme automating 1% 1390 35 0xmitsurugi 7 14 August 2018
validepas_valide EVM - Bytecode 1% 173 35 Elf 0 14 March 2025
validepas_valide Godot - 3D model 1% 700 35 Elf 1 10 June 2022
validepas_valide NRO ARM - Switch homebrew 1% 231 35 Elf 0 21 July 2023
validepas_valide PE x86 - SEHVEH 1% 1468 35 Thanat0s 1 4 May 2013
validepas_valide APK - Anti-debug 1% 3079 40 cryptax 3 18 December 2012
validepas_valide APK - Insomni’Droid 1% 1898 40 cryptax 1 4 March 2012
validepas_valide ELF x64 - Rust backdoor 1% 344 40 Elf 0 21 July 2023
validepas_valide ELF x64 - Rust Crackme 1% 335 40 extiop 1 17 October 2022
validepas_valide PE x64 - UEFI Secure Boot 1% 293 40 Solden 1 10 May 2023
validepas_valide APK - Root My Droid 1% 1375 45 koma 1 26 February 2012
validepas_valide ELF x64 - Nanomites - Introduction 1% 990 45 Phenol 4 4 March 2018
validepas_valide ELF x86 - Anti-debug 1% 2134 45 Tosh 4 3 June 2012
validepas_valide PE DotNet - KeygenMe 1% 385 45 nqnt 1 14 April 2021
validepas_valide PE x64 - Tables in shambles 1% 228 45 0xTRIKKSS 0 28 December 2023
validepas_valide PE x86 - AutoPE 1% 967 45 Gr4ph0s 3 5 August 2011
validepas_valide PYC - Self Modifying (Byte)Code 1% 247 45 Njörd 1 28 December 2023
validepas_valide PYC - Snakeygen 1% 306 45 erk3 0 17 October 2022
validepas_valide ELF x86 - KeygenMe 1% 1080 50 int_0x80 5 20 July 2011
validepas_valide HackerMan 1% 158 50 LordRoke , Stealer , Sengengie 1 10 May 2023
validepas_valide Unity - Mono - Basic Game Hacking 1% 211 50 0x0ff 1 17 October 2022
validepas_valide WASM - Find the NPC 1% 376 50 Cyxo 3 26 March 2021
validepas_valide PE DotNet - Memory Protect 1% 116 55 Vozec 0 14 March 2025
validepas_valide Bash - VM 1% 475 60 govlog 2 25 March 2021
validepas_valide ELF x64 - KeyGenMe 1% 300 60 rene-d 1 12 November 2020
validepas_valide ELF x64 - Anti-debug and equations 1% 550 65 0xmitsurugi 4 18 July 2016
validepas_valide Unity - IL2CPP - Basic Game Hacking 1% 118 65 0x0ff 0 21 July 2023
validepas_valide ELF x64 - Nanomites 1% 568 70 Phenol 2 4 March 2018
validepas_valide ELF x86 - Packed 1% 556 70 Tosh 3 18 October 2011
validepas_valide PE x86 - RunPE 1% 1204 75 Thanat0s 5 16 December 2013
validepas_valide PE32+ - KeygenMe 1% 104 85 Redouane 0 14 March 2025
validepas_valide ELF x86 - VM 1% 769 90 Thanat0s 7 16 June 2013
validepas_valide ELF x64 - Hidden Control Flow 1% 290 100 so3 1 18 November 2020
validepas_valide Ringgit 1% 182 110 Cryptanalyse 2 6 October 2019
validepas_valide Voracious Nanomites 1% 78 110 Kasen 0 21 July 2023
validepas_valide White-Box Cryptography #2 1% 171 130 Cryptanalyse 1 17 July 2019

Challenge Results Challenge Results

Pseudo Challenge Lang Date
ae7th Cracking  ELF MIPS - Basic Crackme en 13 October 2026 at 20:36
5h4d0wx Cracking  ELF x86 - Ptrace en 13 October 2026 at 20:22
5h4d0wx Cracking  PE x86 - 0 protection en 13 October 2026 at 20:20
mirakou Cracking  ELF x64 - Golang basique fr 13 October 2026 at 20:00
StarBurst1024 Cracking  PE x86 - 0 protection en 13 October 2026 at 20:00
william Cracking  PE x86 - 0 protection en 13 October 2026 at 19:56
StarBurst1024 Cracking  ELF x86 - Basic en 13 October 2026 at 19:49
mirakou Cracking  APK - Introduction fr 13 October 2026 at 19:48
william Cracking  ELF x86 - Basic en 13 October 2026 at 19:44
StarBurst1024 Cracking  ELF MIPS - Basic Crackme en 13 October 2026 at 19:40