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 White-Box Cryptography #2 1% 43 130 Cryptanalyse 1 17 July 2019
pas_valide Ringgit 1% 69 110 Cryptanalyse 1 6 October 2019
pas_valide ELF x64 - Hidden Control Flow 1% 72 100 so3 1 18 November 2020
pas_valide APK - Flutter Debug 1% 83 20 exti0p 0 19 June 2022
pas_valide ELF x64 - KeyGenMe 1% 92 60 rene-d 0 12 November 2020
pas_valide WASM - Find the NPC 1% 123 50 Cyxo 1 26 March 2021
pas_valide Godot - 3D model 1% 125 35 Elf 1 10 June 2022
pas_valide PE DotNet - KeygenMe 1% 146 45 nqnt 1 14 April 2021
pas_valide Godot - Mono 1% 147 25 Elf 1 10 June 2022
pas_valide Bash - VM 1% 170 60 govlog 1 25 March 2021
pas_valide Godot - Bytecode 1% 194 15 Elf 1 10 June 2022
pas_valide Powershell DeObfuscation 1% 268 35 hat.time 1 2 April 2021
pas_valide ELF x64 - Nanomites 1% 294 70 Phenol 2 4 March 2018
pas_valide Godot - 0 protection 1% 313 10 Elf 0 10 June 2022
pas_valide ELF x64 - Anti-debug and equations 1% 337 65 0xmitsurugi 3 18 July 2016
pas_valide ELF x86 - Packed 1% 362 70 Tosh 3 18 October 2011
pas_valide Lua - Bytecode 1% 376 25 Bernstein 1 25 March 2021
pas_valide ELF x86 - VM 1% 512 90 Thanat0s 7 16 June 2013
pas_valide ELF ARM - Crypted 1% 535 35 koma 2 4 September 2012
pas_valide ELF x64 - Nanomites - Introduction 1% 539 45 Phenol 2 4 March 2018
pas_valide PE x86 - Xor Madness 1% 598 30 ENOENT 3 17 July 2019
pas_valide PE DotNet - Basic Crackme 1% 602 20 nqnt 2 14 April 2021
pas_valide WASM - Introduction 1% 664 15 Cyxo 1 26 March 2021
pas_valide PE x86 - AutoPE 1% 702 45 Gr4ph0s 3 5 August 2011
pas_valide ELF x86 - KeygenMe 1% 719 50 int_0x80 5 20 July 2011
pas_valide PE x86 - RunPE 1% 798 75 Thanat0s 5 16 December 2013
pas_valide PE DotNet - Basic Anti-Debug 1% 798 20 nqnt 2 24 March 2021
pas_valide ELF x64 - Crackme automating 1% 814 35 0xmitsurugi 7 14 August 2018
pas_valide ELF x64 - Basic KeygenMe 1% 869 20 fr0g 3 2 September 2020
pas_valide GB - Basic GameBoy crackme 1% 956 30 jambon69 2 14 September 2018
pas_valide PE x86 - SEHVEH 1% 1006 35 Thanat0s 1 4 May 2013
pas_valide MachO x64 - keygenme or not 1% 1244 25 /bin/ls 2 14 April 2017
pas_valide PDF - Javascript 1% 1320 30 koma 1 14 February 2012
pas_valide ELF x86 - Anti-debug 1% 1501 45 Tosh 3 3 June 2012
pas_valide ELF ARM - crackme 1337 1% 1925 30 Anonymous 2 3 February 2011
pas_valide ELF x64 - Golang basic 1% 2045 15 jenaye 3 8 November 2018
pas_valide APK - Anti-debug 1% 2055 40 cryptax 3 18 December 2012
pas_valide ELF x86 - Random Crackme 2% 2897 30 kmkz 3 3 February 2011
pas_valide ELF MIPS - Basic Crackme 2% 2938 15 sar 2 9 July 2018
pas_valide ELF ARM - Basic Crackme 2% 3222 20 0xmitsurugi 7 13 July 2016
pas_valide ELF x86 - No software breakpoints 2% 3300 25 yodzeb 8 2 October 2013
pas_valide ELF x86 - ExploitMe 2% 3643 30 kmkz 5 3 February 2011
pas_valide ELF x86 - CrackPass 2% 4214 30 Tosh 5 3 February 2011
pas_valide PYC - ByteCode 2% 4366 20 Thanat0s 9 3 July 2013
pas_valide ELF x86 - Ptrace 3% 6352 15 g0uZ 3 27 November 2009
pas_valide ELF x86 - Fake Instructions 3% 7294 15 kmkz 5 21 February 2010
pas_valide ELF C++ - 0 protection 4% 7953 10 sourcePerrier 5 13 July 2016
pas_valide PE DotNet - 0 protection 4% 8192 10 Geluchat 6 15 September 2014
pas_valide PE x86 - 0 protection 6% 15606 5 alejandr0 7 11 November 2012
pas_valide ELF x86 - Basic 11% 28963 5 g0uZ 10 7 October 2006
pas_valide ELF x86 - 0 protection 14% 35928 5 g0uZ 10 7 October 2006

Challenge Results Challenge Results

Pseudo Challenge Lang Date
c0gnus Cracking  ELF C++ - 0 protection fr 16 August 2022 at 09:15
sirko Cracking  APK - Anti-debug fr 16 August 2022 at 09:09
c0gnus Cracking  PE x86 - 0 protection fr 16 August 2022 at 08:57
sirko Cracking  GB - Basic GameBoy crackme fr 16 August 2022 at 08:54
c0gnus Cracking  ELF x86 - Basique fr 16 August 2022 at 08:47
c0gnus Cracking  ELF x86 - 0 protection fr 16 August 2022 at 08:37
Enokas Worms Cracking  PE x86 - 0 protection fr 16 August 2022 at 08:28
Orseru Cracking  ELF x86 - Fake Instructions fr 16 August 2022 at 07:57
pngwn Cracking  PE DotNet - KeygenMe en 16 August 2022 at 06:23
Cyriaque Cracking  ELF x86 - 0 protection fr 16 August 2022 at 01:46