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.

 35 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide ELF x86 - 0 protection 15% 23013 5 g0uZ 10
pas_valide ELF x86 - Basic 12% 18805 5 g0uZ 10
pas_valide PE x86 - 0 protection 7% 9897 5 alejandr0 5
pas_valide ELF C++ - 0 protection 3% 4431 10 sourcePerrier 4
pas_valide PE DotNet - 0 protection 4% 5135 10 Geluchat 5
pas_valide ELF MIPS - Basic Crackme 1% 1034 15 stan1slas 2
pas_valide ELF x64 - Golang basic 1% 749 15 jenaye 3
pas_valide ELF x86 - Fake Instructions 4% 5187 15 kmkz 4
pas_valide ELF x86 - Ptrace 3% 4498 15 g0uZ 2
pas_valide ELF ARM - Basic Crackme 2% 1822 20 0xmitsurugi 6
pas_valide PYC - ByteCode 2% 3105 20 Thanat0s 9
pas_valide ELF x86 - No software breakpoints 2% 2418 25 yodzeb 6
pas_valide MachO x64 - keygenme or not 1% 817 25 /bin/ls 1
pas_valide ELF ARM - crackme 1337 1% 1301 30 2
pas_valide ELF x86 - CrackPass 2% 2869 30 Tosh 5
pas_valide ELF x86 - ExploitMe 2% 2654 30 kmkz 5
pas_valide ELF x86 - Random Crackme 2% 2081 30 kmkz 3
pas_valide GB - Basic GameBoy crackme 1% 383 30 jambon69 2
pas_valide PDF - Javascript 1% 952 30 koma 1
pas_valide PE x86 - Xor Madness 1% 159 30 ENOENT 1
pas_valide ELF ARM - Crypted 1% 418 35 koma 1
pas_valide ELF x64 - Crackme automating 1% 373 35 0xmitsurugi 6
pas_valide PE x86 - SEHVEH 1% 703 35 Thanat0s 0
pas_valide APK - Anti-debug 1% 1209 40 cryptax 3
pas_valide ELF x64 - Nanomites - Introduction 1% 282 45 Phenol 2
pas_valide ELF x86 - Anti-debug 1% 1038 45 Tosh 3
pas_valide PE x86 - AutoPE 1% 484 45 Gr4ph0s 3
pas_valide ELF x86 - KeygenMe 1% 461 50 int_0x80 5
pas_valide ELF x64 - Anti-debug and equations 1% 224 65 0xmitsurugi 3
pas_valide ELF x64 - Nanomites 1% 164 70 Phenol 1
pas_valide ELF x86 - Packed 1% 272 70 Tosh 3
pas_valide PE x86 - RunPE 1% 602 75 Thanat0s 4
pas_valide ELF x86 - VM 1% 379 90 Thanat0s 7
pas_valide Ringgit 1% 15 110 Cryptanalyse 0
pas_valide White-Box Cryptography #2 1% 11 130 Cryptanalyse 0

Challenge Results Challenge Results

Pseudo Challenge Lang date
chris_cl72   ELF ARM - Basic Crackme 22 November 2019 at 07:13
chris_cl72   PE DotNet - 0 protection 22 November 2019 at 06:55
Alya Gomaa   ELF x86 - Fake Instructions 22 November 2019 at 02:06
_fkz   ELF ARM - Crypted 22 November 2019 at 01:31
hummelchen   APK - Anti-debug 22 November 2019 at 00:53
Solden   ELF x64 - Automatisation du crackme 22 November 2019 at 00:36
hummelchen   PYC - ByteCode 22 November 2019 at 00:19
Mafo369   ELF MIPS - Basic Crackme 22 November 2019 at 00:15
hummelchen   PE DotNet - 0 protection 22 November 2019 at 00:09
Slaphappynuns   PE DotNet - 0 protection 21 November 2019 at 23:30