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 ARM - Crypted 1% 748 35 koma 2 4 September 2012
pas_valide APK - Insomni’Droid 1% 1874 40 cryptax 1 4 March 2012
pas_valide MachO x64 - keygenme or not 1% 1770 25 /bin/ls 2 14 April 2017
pas_valide ELF ARM - crackme 1337 1% 2781 30 2 3 February 2011
pas_valide PDF - Javascript 1% 1816 30 koma 1 14 February 2012
pas_valide APK - Anti-debug 1% 3048 40 cryptax 3 18 December 2012
pas_valide ELF x86 - Packed 1% 536 70 Tosh 3 18 October 2011
pas_valide ELF x86 - ExploitMe 2% 4898 30 kmkz 5 3 February 2011
pas_valide ELF x64 - Rust Crackme 1% 309 40 extiop 1 17 October 2022
pas_valide ELF x64 - Anti-debug and equations 1% 532 65 0xmitsurugi 4 18 July 2016
pas_valide Voracious Nanomites 1% 50 110 Kasen 0 21 July 2023
pas_valide PE x86 - AutoPE 1% 951 45 Gr4ph0s 3 5 August 2011
pas_valide Unity3D Save handling 1% 443 20 Lumy 2 21 July 2023
pas_valide APK - Root My Droid 1% 1344 45 koma 1 26 February 2012
pas_valide PE DotNet - Memory Protect 1% 94 55 Vozec 0 14 March 2025
pas_valide PE DotNet - KeygenMe 1% 372 45 nqnt 1 14 April 2021
pas_valide ELF x64 - Basic KeygenMe 1% 2307 20 fr0g 3 2 September 2020
pas_valide APK - Flutter Debug 1% 991 20 extiop 1 19 June 2022
pas_valide ELF x64 - Golang basic 1% 3751 15 jenaye 3 8 November 2018
pas_valide PE32+ - KeygenMe 1% 84 85 Redouane 0 14 March 2025
pas_valide Godot - 0 protection 1% 3846 10 Elf 5 10 June 2022
pas_valide WASM - Introduction 1% 1956 15 Cyxo 2 26 March 2021
pas_valide White-Box Cryptography #2 1% 131 130 Cryptanalyse 1 17 July 2019
pas_valide Unity - IL2CPP - Basic Game Hacking 1% 106 65 0x0ff 0 21 July 2023
pas_valide ELF MIPS - Basic Crackme 2% 5413 15 sar 2 9 July 2018
pas_valide NRO ARM - Switch homebrew 1% 216 35 Elf 0 21 July 2023
pas_valide PE x64 - UEFI Secure Boot 1% 259 40 Solden 1 10 May 2023
pas_valide EVM - Bytecode 1% 150 35 Elf 0 14 March 2025
pas_valide Powershell DeObfuscation 1% 764 30 hat.time 2 2 April 2021
pas_valide PE DotNet - 0 protection 3% 11972 10 Geluchat 6 15 September 2014
pas_valide ELF x86 - Fake Instructions 3% 10005 15 kmkz 6 21 February 2010
pas_valide ELF x64 - Nanomites 1% 550 70 Phenol 2 4 March 2018
pas_valide Godot - Mono 1% 1103 20 Elf 1 10 June 2022
pas_valide ELF x86 - Random Crackme 1% 3900 30 kmkz 3 3 February 2011
pas_valide Basic ? crackme 1% 731 25 Dvorhack 2 14 March 2025
pas_valide PE x86 - SEHVEH 1% 1443 35 Thanat0s 1 4 May 2013
pas_valide PE DotNet - Basic Crackme 1% 1568 20 nqnt 3 14 April 2021
pas_valide PE DotNet - Basic Anti-Debug 1% 1995 20 nqnt 3 24 March 2021
pas_valide ELF x86 - KeygenMe 1% 1058 50 int_0x80 5 20 July 2011
pas_valide ELF C++ - 0 protection 4% 13533 10 sourcePerrier 6 13 July 2016
pas_valide HackerMan 1% 143 50 LordRoke , Stealer , Sengengie 1 10 May 2023
pas_valide ELF x86 - VM 1% 746 90 Thanat0s 7 16 June 2013
pas_valide PE x64 - Tables in shambles 1% 205 45 0xTRIKKSS 0 28 December 2023
pas_valide ELF x86 - 0 protection 14% 53519 5 g0uZ 10 7 October 2006
pas_valide Godot - 3D model 1% 673 35 Elf 1 10 June 2022
pas_valide PE x86 - 0 protection 7% 24625 5 alejandr0 7 11 November 2012
pas_valide Unity - Mono - Basic Game Hacking 1% 198 50 0x0ff 1 17 October 2022
pas_valide ELF ARM - Basic Crackme 2% 5120 20 0xmitsurugi 7 13 July 2016
pas_valide Godot - Bytecode 1% 1709 15 Elf 1 10 June 2022
pas_valide Ringgit 1% 164 110 Cryptanalyse 2 6 October 2019
pas_valide ELF x64 - KeyGenMe 1% 279 60 rene-d 1 12 November 2020
pas_valide ELF x86 - Basic 11% 43093 5 g0uZ 10 7 October 2006
pas_valide PE x86 - Xor Madness 1% 1119 30 ENOENT 3 17 July 2019
pas_valide ELF x64 - Crackme automating 1% 1360 35 0xmitsurugi 7 14 August 2018
pas_valide APK - Introduction 1% 3042 15 algorab 5 17 October 2022
pas_valide ELF x86 - CrackPass 2% 5885 30 Tosh 5 3 February 2011
pas_valide PE x86 - RunPE 1% 1178 75 Thanat0s 5 16 December 2013
pas_valide Lua - Bytecode 1% 1158 25 Bernstein 2 25 March 2021
pas_valide Bash - VM 1% 452 60 govlog 2 25 March 2021
pas_valide PYC - ByteCode 2% 5818 20 Thanat0s 9 3 July 2013
pas_valide ELF x86 - No software breakpoints 2% 4461 25 yodzeb 9 2 October 2013
pas_valide ELF x64 - Nanomites - Introduction 1% 962 45 Phenol 4 4 March 2018
pas_valide ELF x86 - Ptrace 3% 8855 15 g0uZ 3 27 November 2009
pas_valide ELF x64 - Hidden Control Flow 1% 260 100 so3 1 18 November 2020
pas_valide ELF x86 - Anti-debug 1% 2105 45 Tosh 4 3 June 2012
pas_valide PYC - Self Modifying (Byte)Code 1% 218 45 Njörd 1 28 December 2023
pas_valide PYC - Snakeygen 1% 287 45 erk3 0 17 October 2022
pas_valide GB - Basic GameBoy crackme 1% 1567 30 jambon69 2 14 September 2018
pas_valide ELF x64 - Rust backdoor 1% 317 40 Elf 0 21 July 2023
pas_valide WASM - Find the NPC 1% 361 50 Cyxo 3 26 March 2021

Challenge Results Challenge Results

Pseudo Challenge Lang Date
V0idSkein Cracking  PE x86 - 0 protection fr 19 July 2026 at 22:58
Zemer Cracking  ELF x86 - Basique fr 19 July 2026 at 22:44
_0vercrash Cracking  Godot - 0 protection fr 19 July 2026 at 22:40
Zemer Cracking  ELF x86 - 0 protection fr 19 July 2026 at 22:36
Cr1tix Cracking  ELF x64 - Golang basic en 19 July 2026 at 21:35
ioqqoi Cracking  ELF x86 - Basic ru 19 July 2026 at 21:11
ioqqoi Cracking  ELF x86 - 0 protection ru 19 July 2026 at 21:09
AntwortEinesLebens Cracking  ELF ARM - Crypted fr 19 July 2026 at 21:05
naderi Cracking  ELF ARM - Basic Crackme en 19 July 2026 at 20:51
mike175 Cracking  NRO ARM - Switch homebrew fr 19 July 2026 at 20:23