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.

 36 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide MachO x64 - keygenme or not 1% 1029 25 /bin/ls 1
pas_valide ELF ARM - Basic Crackme 2% 2428 20 0xmitsurugi 7
pas_valide ELF x64 - Anti-debug and equations 1% 269 65 0xmitsurugi 3
pas_valide ELF x64 - Crackme automating 1% 557 35 0xmitsurugi 6
pas_valide White-Box Cryptography #2 1% 23 130 Cryptanalyse 1
pas_valide Ringgit 1% 31 110 Cryptanalyse 0
pas_valide PE x86 - Xor Madness 1% 369 30 ENOENT 2
pas_valide PE DotNet - 0 protection 4% 6352 10 Geluchat 5
pas_valide PE x86 - AutoPE 1% 568 45 Gr4ph0s 3
pas_valide ELF x64 - Nanomites 1% 211 70 Phenol 2
pas_valide ELF x64 - Nanomites - Introduction 1% 376 45 Phenol 2
pas_valide PE x86 - RunPE 1% 678 75 Thanat0s 5
pas_valide ELF x86 - VM 1% 435 90 Thanat0s 7
pas_valide PYC - ByteCode 2% 3635 20 Thanat0s 9
pas_valide PE x86 - SEHVEH 1% 841 35 Thanat0s 1
pas_valide ELF x86 - Packed 1% 313 70 Tosh 3
pas_valide ELF x86 - CrackPass 2% 3443 30 Tosh 5
pas_valide ELF x86 - Anti-debug 1% 1233 45 Tosh 3
pas_valide PE x86 - 0 protection 7% 12179 5 alejandr0 5
pas_valide APK - Anti-debug 1% 1560 40 cryptax 3
pas_valide ELF x64 - Basic KeygenMe 1% 146 20 fr0g 0
pas_valide ELF x86 - 0 protection 15% 28389 5 g0uZ 10
pas_valide ELF x86 - Ptrace 3% 5268 15 g0uZ 3
pas_valide ELF x86 - Basic 12% 23020 5 g0uZ 10
pas_valide ELF x86 - KeygenMe 1% 573 50 int_0x80 5
pas_valide GB - Basic GameBoy crackme 1% 650 30 jambon69 2
pas_valide ELF x64 - Golang basic 1% 1312 15 jenaye 3
pas_valide ELF x86 - Random Crackme 2% 2429 30 kmkz 3
pas_valide ELF x86 - ExploitMe 2% 3088 30 kmkz 5
pas_valide ELF x86 - Fake Instructions 4% 6038 15 kmkz 5
pas_valide ELF ARM - Crypted 1% 462 35 koma 2
pas_valide PDF - Javascript 1% 1106 30 koma 1
pas_valide ELF ARM - crackme 1337 1% 1586 30 2
pas_valide ELF MIPS - Basic Crackme 1% 1773 15 s4r 2
pas_valide ELF C++ - 0 protection 3% 5838 10 sourcePerrier 4
pas_valide ELF x86 - No software breakpoints 2% 2841 25 yodzeb 8

Challenge Results Challenge Results

Pseudo Challenge Lang date
cukima   ELF MIPS - Basic Crackme 26 October 2020 at 04:53
b1gCat   ELF x86 - Random Crackme 26 October 2020 at 04:13
cukima   PE DotNet - 0 protection 26 October 2020 at 03:46
x0r19x91   ELF x64 - Basic KeygenMe 26 October 2020 at 01:51
FairyDeath_   PE DotNet - 0 protection 26 October 2020 at 01:23
ghost   PE DotNet - 0 protection 26 October 2020 at 01:14
tpwl   ELF x86 - Basic 26 October 2020 at 00:46
tpwl   ELF x86 - 0 protection 26 October 2020 at 00:45
AnotherAccount   ELF x86 - 0 protection 26 October 2020 at 00:42
seco   PYC - ByteCode 26 October 2020 at 00:18