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% 27116 5 g0uZ 10
pas_valide ELF x86 - Basic 12% 22011 5 g0uZ 10
pas_valide PE x86 - 0 protection 7% 11642 5 alejandr0 5
pas_valide ELF C++ - 0 protection 3% 5504 10 sourcePerrier 4
pas_valide PE DotNet - 0 protection 4% 6053 10 Geluchat 5
pas_valide ELF MIPS - Basic Crackme 1% 1572 15 s4r 2
pas_valide ELF x64 - Golang basic 1% 1158 15 jenaye 3
pas_valide ELF x86 - Fake Instructions 4% 5810 15 kmkz 5
pas_valide ELF x86 - Ptrace 3% 5058 15 g0uZ 3
pas_valide ELF ARM - Basic Crackme 2% 2277 20 0xmitsurugi 6
pas_valide PYC - ByteCode 2% 3506 20 Thanat0s 9
pas_valide ELF x86 - No software breakpoints 2% 2719 25 yodzeb 7
pas_valide MachO x64 - keygenme or not 1% 978 25 /bin/ls 1
pas_valide PE x86 - Xor Madness 1% 323 30 ENOENT 2
pas_valide PDF - Javascript 1% 1060 30 koma 1
pas_valide GB - Basic GameBoy crackme 1% 587 30 jambon69 2
pas_valide ELF x86 - Random Crackme 2% 2313 30 kmkz 3
pas_valide ELF x86 - ExploitMe 2% 2973 30 kmkz 5
pas_valide ELF x86 - CrackPass 2% 3285 30 Tosh 5
pas_valide ELF ARM - crackme 1337 1% 1508 30 2
pas_valide ELF ARM - Crypted 1% 454 35 koma 2
pas_valide ELF x64 - Crackme automating 1% 505 35 0xmitsurugi 6
pas_valide PE x86 - SEHVEH 1% 807 35 Thanat0s 1
pas_valide APK - Anti-debug 1% 1494 40 cryptax 3
pas_valide PE x86 - AutoPE 1% 544 45 Gr4ph0s 3
pas_valide ELF x86 - Anti-debug 1% 1172 45 Tosh 3
pas_valide ELF x64 - Nanomites - Introduction 1% 347 45 Phenol 2
pas_valide ELF x86 - KeygenMe 1% 539 50 int_0x80 5
pas_valide ELF x64 - Anti-debug and equations 1% 258 65 0xmitsurugi 3
pas_valide ELF x64 - Nanomites 1% 200 70 Phenol 2
pas_valide ELF x86 - Packed 1% 304 70 Tosh 3
pas_valide PE x86 - RunPE 1% 654 75 Thanat0s 5
pas_valide ELF x86 - VM 1% 421 90 Thanat0s 7
pas_valide Ringgit 1% 28 110 Cryptanalyse 0
pas_valide White-Box Cryptography #2 1% 21 130 Cryptanalyse 1

Challenge Results Challenge Results

Pseudo Challenge Lang date
HShot   ELF x86 - 0 protection 10 July 2020 at 08:29
Gow   ELF x86 - Ptrace 10 July 2020 at 06:18
Hentai   APK - Anti-debug 10 July 2020 at 01:57
Hentai   ELF x86 - ExploitMe 10 July 2020 at 01:57
Hentai   ELF x86 - Ptrace 10 July 2020 at 01:57
Hentai   ELF x86 - Fake Instructions 10 July 2020 at 01:56
Hentai   ELF C++ - 0 protection 10 July 2020 at 01:56
Hentai   PE x86 - 0 protection 10 July 2020 at 01:56
Hentai   ELF x86 - Basique 10 July 2020 at 01:55
Hentai   ELF x86 - 0 protection 10 July 2020 at 01:55