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 51 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% 35484 5 g0uZ 10 7 October 2006
pas_valide ELF x86 - Basic 11% 28610 5 g0uZ 10 7 October 2006
pas_valide PE x86 - 0 protection 6% 15381 5 alejandr0 6 11 November 2012
pas_valide ELF C++ - 0 protection 3% 7806 10 sourcePerrier 5 13 July 2016
pas_valide Godot - 0 protection 1% 161 10 Elf 0 10 June 2022
pas_valide PE DotNet - 0 protection 4% 8074 10 Geluchat 6 15 September 2014
pas_valide ELF MIPS - Basic Crackme 2% 2861 15 sar 2 9 July 2018
pas_valide ELF x64 - Golang basic 1% 1995 15 jenaye 3 8 November 2018
pas_valide ELF x86 - Fake Instructions 3% 7205 15 kmkz 5 21 February 2010
pas_valide ELF x86 - Ptrace 3% 6282 15 g0uZ 3 27 November 2009
pas_valide Godot - Bytecode 1% 106 15 Elf 1 10 June 2022
pas_valide WASM - Introduction 1% 614 15 Cyxo 1 26 March 2021
pas_valide APK - Flutter Debug 1% 16 20 exti0p 0 19 June 2022
pas_valide ELF ARM - Basic Crackme 2% 3161 20 0xmitsurugi 7 13 July 2016
pas_valide ELF x64 - Basic KeygenMe 1% 835 20 fr0g 3 2 September 2020
pas_valide PE DotNet - Basic Anti-Debug 1% 756 20 nqnt 2 24 March 2021
pas_valide PE DotNet - Basic Crackme 1% 562 20 nqnt 2 14 April 2021
pas_valide PYC - ByteCode 2% 4319 20 Thanat0s 9 3 July 2013
pas_valide ELF x86 - No software breakpoints 2% 3273 25 yodzeb 8 2 October 2013
pas_valide Godot - Mono 1% 85 25 Elf 1 10 June 2022
pas_valide Lua - Bytecode 1% 357 25 Bernstein 1 25 March 2021
pas_valide MachO x64 - keygenme or not 1% 1230 25 /bin/ls 2 14 April 2017
pas_valide ELF ARM - crackme 1337 1% 1904 30 Anonymous 2 3 February 2011
pas_valide ELF x86 - CrackPass 2% 4169 30 Tosh 5 3 February 2011
pas_valide ELF x86 - ExploitMe 2% 3610 30 kmkz 5 3 February 2011
pas_valide ELF x86 - Random Crackme 2% 2867 30 kmkz 3 3 February 2011
pas_valide GB - Basic GameBoy crackme 1% 937 30 jambon69 2 14 September 2018
pas_valide PDF - Javascript 1% 1306 30 koma 1 14 February 2012
pas_valide PE x86 - Xor Madness 1% 586 30 ENOENT 3 17 July 2019
pas_valide ELF ARM - Crypted 1% 531 35 koma 2 4 September 2012
pas_valide ELF x64 - Crackme automating 1% 803 35 0xmitsurugi 7 14 August 2018
pas_valide Godot - 3D model 1% 69 35 Elf 1 10 June 2022
pas_valide PE x86 - SEHVEH 1% 992 35 Thanat0s 1 4 May 2013
pas_valide Powershell DeObfuscation 1% 255 35 hat.time 1 2 April 2021
pas_valide APK - Anti-debug 1% 2013 40 cryptax 3 18 December 2012
pas_valide ELF x64 - Nanomites - Introduction 1% 529 45 Phenol 2 4 March 2018
pas_valide ELF x86 - Anti-debug 1% 1478 45 Tosh 3 3 June 2012
pas_valide PE DotNet - KeygenMe 1% 130 45 nqnt 1 14 April 2021
pas_valide PE x86 - AutoPE 1% 688 45 Gr4ph0s 3 5 August 2011
pas_valide ELF x86 - KeygenMe 1% 704 50 int_0x80 5 20 July 2011
pas_valide WASM - Find the NPC 1% 113 50 Cyxo 1 26 March 2021
pas_valide Bash - VM 1% 159 60 govlog 1 25 March 2021
pas_valide ELF x64 - KeyGenMe 1% 90 60 rene-d 0 12 November 2020
pas_valide ELF x64 - Anti-debug and equations 1% 328 65 0xmitsurugi 3 18 July 2016
pas_valide ELF x64 - Nanomites 1% 287 70 Phenol 2 4 March 2018
pas_valide ELF x86 - Packed 1% 357 70 Tosh 3 18 October 2011
pas_valide PE x86 - RunPE 1% 786 75 Thanat0s 5 16 December 2013
pas_valide ELF x86 - VM 1% 511 90 Thanat0s 7 16 June 2013
pas_valide ELF x64 - Hidden Control Flow 1% 68 100 so3 1 18 November 2020
pas_valide Ringgit 1% 63 110 Cryptanalyse 1 6 October 2019
pas_valide White-Box Cryptography #2 1% 42 130 Cryptanalyse 1 17 July 2019

Challenge Results Challenge Results

Pseudo Challenge Lang Date
Masofgon Cracking  ELF x86 - Basique fr 28 June 2022 at 00:29
philou527 Cracking  PE x86 - 0 protection fr 27 June 2022 at 23:54
daladim Cracking  ELF ARM - Basic Crackme fr 27 June 2022 at 23:46
leodb Cracking  ELF x86 - 0 protection fr 27 June 2022 at 23:16
Masofgon Cracking  ELF x86 - 0 protection fr 27 June 2022 at 23:13
Raphgui Cracking  ELF x64 - Basic KeygenMe fr 27 June 2022 at 23:10
hinject Cracking  PE DotNet - 0 protection fr 27 June 2022 at 23:07
Anselme Cracking  PE x86 - 0 protection fr 27 June 2022 at 22:11
draemon12 Cracking  ELF x64 - Golang basique fr 27 June 2022 at 22:08
rakahanga Cracking  ELF x86 - Random Crackme fr 27 June 2022 at 21:56