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% 36233 5 g0uZ 10 7 October 2006
pas_valide ELF x86 - Basic 11% 29211 5 g0uZ 10 7 October 2006
pas_valide PE x86 - 0 protection 6% 15748 5 alejandr0 7 11 November 2012
pas_valide ELF C++ - 0 protection 4% 8053 10 sourcePerrier 5 13 July 2016
pas_valide Godot - 0 protection 1% 374 10 Elf 0 10 June 2022
pas_valide PE DotNet - 0 protection 4% 8254 10 Geluchat 6 15 September 2014
pas_valide ELF MIPS - Basic Crackme 2% 2995 15 sar 2 9 July 2018
pas_valide ELF x64 - Golang basic 1% 2079 15 jenaye 3 8 November 2018
pas_valide ELF x86 - Fake Instructions 3% 7344 15 kmkz 5 21 February 2010
pas_valide ELF x86 - Ptrace 3% 6397 15 g0uZ 3 27 November 2009
pas_valide Godot - Bytecode 1% 234 15 Elf 1 10 June 2022
pas_valide WASM - Introduction 1% 690 15 Cyxo 1 26 March 2021
pas_valide APK - Flutter Debug 1% 124 20 exti0p 0 19 June 2022
pas_valide ELF ARM - Basic Crackme 2% 3267 20 0xmitsurugi 7 13 July 2016
pas_valide ELF x64 - Basic KeygenMe 1% 899 20 fr0g 3 2 September 2020
pas_valide PE DotNet - Basic Anti-Debug 1% 830 20 nqnt 2 24 March 2021
pas_valide PE DotNet - Basic Crackme 1% 631 20 nqnt 2 14 April 2021
pas_valide PYC - ByteCode 2% 4397 20 Thanat0s 9 3 July 2013
pas_valide ELF x86 - No software breakpoints 2% 3326 25 yodzeb 8 2 October 2013
pas_valide Godot - Mono 1% 184 25 Elf 1 10 June 2022
pas_valide Lua - Bytecode 1% 384 25 Bernstein 1 25 March 2021
pas_valide MachO x64 - keygenme or not 1% 1259 25 /bin/ls 2 14 April 2017
pas_valide ELF ARM - crackme 1337 1% 1945 30 Anonymous 2 3 February 2011
pas_valide ELF x86 - CrackPass 2% 4256 30 Tosh 5 3 February 2011
pas_valide ELF x86 - ExploitMe 2% 3681 30 kmkz 5 3 February 2011
pas_valide ELF x86 - Random Crackme 2% 2922 30 kmkz 3 3 February 2011
pas_valide GB - Basic GameBoy crackme 1% 968 30 jambon69 2 14 September 2018
pas_valide PDF - Javascript 1% 1329 30 koma 1 14 February 2012
pas_valide PE x86 - Xor Madness 1% 608 30 ENOENT 3 17 July 2019
pas_valide ELF ARM - Crypted 1% 536 35 koma 2 4 September 2012
pas_valide ELF x64 - Crackme automating 1% 828 35 0xmitsurugi 7 14 August 2018
pas_valide Godot - 3D model 1% 147 35 Elf 1 10 June 2022
pas_valide PE x86 - SEHVEH 1% 1019 35 Thanat0s 1 4 May 2013
pas_valide Powershell DeObfuscation 1% 277 35 hat.time 1 2 April 2021
pas_valide APK - Anti-debug 1% 2079 40 cryptax 3 18 December 2012
pas_valide ELF x64 - Nanomites - Introduction 1% 547 45 Phenol 3 4 March 2018
pas_valide ELF x86 - Anti-debug 1% 1516 45 Tosh 3 3 June 2012
pas_valide PE DotNet - KeygenMe 1% 154 45 nqnt 1 14 April 2021
pas_valide PE x86 - AutoPE 1% 711 45 Gr4ph0s 3 5 August 2011
pas_valide ELF x86 - KeygenMe 1% 724 50 int_0x80 5 20 July 2011
pas_valide WASM - Find the NPC 1% 131 50 Cyxo 1 26 March 2021
pas_valide Bash - VM 1% 173 60 govlog 1 25 March 2021
pas_valide ELF x64 - KeyGenMe 1% 94 60 rene-d 0 12 November 2020
pas_valide ELF x64 - Anti-debug and equations 1% 341 65 0xmitsurugi 3 18 July 2016
pas_valide ELF x64 - Nanomites 1% 300 70 Phenol 2 4 March 2018
pas_valide ELF x86 - Packed 1% 364 70 Tosh 3 18 October 2011
pas_valide PE x86 - RunPE 1% 803 75 Thanat0s 5 16 December 2013
pas_valide ELF x86 - VM 1% 515 90 Thanat0s 7 16 June 2013
pas_valide ELF x64 - Hidden Control Flow 1% 72 100 so3 1 18 November 2020
pas_valide Ringgit 1% 70 110 Cryptanalyse 1 6 October 2019
pas_valide White-Box Cryptography #2 1% 44 130 Cryptanalyse 1 17 July 2019

Challenge Results Challenge Results

Pseudo Challenge Lang Date
Demat Cracking  ELF ARM - Basic Crackme en 25 September 2022 at 19:30
W3nil0r4cW Cracking  Godot - 0 protection fr 25 September 2022 at 19:27
Demat Cracking  Lua - Bytecode fr 25 September 2022 at 19:20
fr33_k3v1n Cracking  ELF x86 - Basic en 25 September 2022 at 19:15
MedyOsef Cracking  ELF x86 - Basique fr 25 September 2022 at 19:05
MedyOsef Cracking  ELF x86 - 0 protection fr 25 September 2022 at 18:57
ichiku Cracking  ELF x86 - 0 protection fr 25 September 2022 at 18:50
snowtop_caps Cracking  PE DotNet - 0 protection en 25 September 2022 at 18:45
snowtop_caps Cracking  PE x86 - 0 protection en 25 September 2022 at 18:41
snowtop_caps Cracking  ELF x86 - Basic en 25 September 2022 at 18:39