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 associated with this section 35 Challenges

Results Challenge's Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide White-Box Cryptography #2 1% 11 130 Cryptanalyse 0
pas_valide Ringgit 1% 14 110 Cryptanalyse 0
pas_valide PE x86 - Xor Madness 1% 157 30 ENOENT 1
pas_valide ELF x64 - Nanomites 1% 163 70 Phenol 1
pas_valide ELF x64 - Anti-debug and equations 1% 224 65 0xmitsurugi 3
pas_valide ELF x86 - Packed 1% 272 70 Tosh 3
pas_valide ELF x64 - Nanomites - Introduction 1% 280 45 Phenol 2
pas_valide ELF x64 - Crackme automating 1% 372 35 0xmitsurugi 6
pas_valide ELF x86 - VM 1% 379 90 Thanat0s 7
pas_valide GB - Basic GameBoy crackme 1% 379 30 jambon69 2
pas_valide ELF ARM - Crypted 1% 417 35 koma 1
pas_valide ELF x86 - KeygenMe 1% 461 50 int_0x80 5
pas_valide PE x86 - AutoPE 1% 484 45 Gr4ph0s 3
pas_valide PE x86 - RunPE 1% 600 75 Thanat0s 4
pas_valide PE x86 - SEHVEH 1% 701 35 Thanat0s 0
pas_valide ELF x64 - Golang basic 1% 737 15 jenaye 3
pas_valide MachO x64 - keygenme or not 1% 815 25 /bin/ls 1
pas_valide PDF - Javascript 1% 952 30 koma 1
pas_valide ELF MIPS - Basic Crackme 1% 1022 15 stan1slas 2
pas_valide ELF x86 - Anti-debug 1% 1038 45 Tosh 3
pas_valide APK - Anti-debug 1% 1206 40 cryptax 3
pas_valide ELF ARM - crackme 1337 1% 1297 30 2
pas_valide ELF ARM - Basic Crackme 2% 1811 20 0xmitsurugi 6
pas_valide ELF x86 - Random Crackme 2% 2078 30 kmkz 3
pas_valide ELF x86 - No software breakpoints 2% 2412 25 yodzeb 6
pas_valide ELF x86 - ExploitMe 2% 2650 30 kmkz 5
pas_valide ELF x86 - CrackPass 2% 2863 30 Tosh 5
pas_valide PYC - ByteCode 2% 3096 20 Thanat0s 9
pas_valide ELF C++ - 0 protection 3% 4401 10 sourcePerrier 4
pas_valide ELF x86 - Ptrace 3% 4485 15 g0uZ 2
pas_valide PE DotNet - 0 protection 4% 5106 10 Geluchat 5
pas_valide ELF x86 - Fake Instructions 4% 5170 15 kmkz 4
pas_valide PE x86 - 0 protection 7% 9837 5 alejandr0 5
pas_valide ELF x86 - Basic 12% 18708 5 g0uZ 10
pas_valide ELF x86 - 0 protection 15% 22896 5 g0uZ 10

Challenge Results Challenge Results

Pseudo Challenge Lang date
Karl   ELF C++ - 0 protection en 16 November 2019 at 01:18
Trafalgar   ELF x86 - 0 protection fr 16 November 2019 at 01:13
mys22   GB - Basic GameBoy crackme fr 16 November 2019 at 00:36
Socyopath   ELF x86 - Ptrace fr 15 November 2019 at 22:45
javandam   ELF C++ - 0 protection en 15 November 2019 at 22:33
xanhacks   ELF x86 - CrackPass fr 15 November 2019 at 22:24
ScarPunk   ELF x86 - 0 protection fr 15 November 2019 at 22:16
Socyopath   ELF x86 - Fake Instructions fr 15 November 2019 at 21:28
bond   PE x86 - 0 protection fr 15 November 2019 at 21:13
Karl   PE x86 - 0 protection en 15 November 2019 at 20:06