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% 25536 5 g0uZ 10
pas_valide ELF x86 - Basic 12% 20827 5 g0uZ 10
pas_valide PE x86 - 0 protection 7% 11003 5 alejandr0 5
pas_valide ELF C++ - 0 protection 3% 5113 10 sourcePerrier 4
pas_valide PE DotNet - 0 protection 4% 5712 10 Geluchat 5
pas_valide ELF MIPS - Basic Crackme 1% 1367 15 stan1slas 2
pas_valide ELF x64 - Golang basic 1% 1000 15 jenaye 3
pas_valide ELF x86 - Fake Instructions 4% 5575 15 kmkz 5
pas_valide ELF x86 - Ptrace 3% 4842 15 g0uZ 2
pas_valide ELF ARM - Basic Crackme 2% 2100 20 0xmitsurugi 6
pas_valide PYC - ByteCode 2% 3358 20 Thanat0s 9
pas_valide ELF x86 - No software breakpoints 2% 2598 25 yodzeb 7
pas_valide MachO x64 - keygenme or not 1% 909 25 /bin/ls 1
pas_valide ELF ARM - crackme 1337 1% 1425 30 2
pas_valide ELF x86 - CrackPass 2% 3114 30 Tosh 5
pas_valide ELF x86 - ExploitMe 2% 2847 30 kmkz 5
pas_valide ELF x86 - Random Crackme 2% 2227 30 kmkz 3
pas_valide GB - Basic GameBoy crackme 1% 512 30 jambon69 2
pas_valide PDF - Javascript 1% 1005 30 koma 1
pas_valide PE x86 - Xor Madness 1% 270 30 ENOENT 2
pas_valide ELF ARM - Crypted 1% 441 35 koma 2
pas_valide ELF x64 - Crackme automating 1% 451 35 0xmitsurugi 6
pas_valide PE x86 - SEHVEH 1% 757 35 Thanat0s 1
pas_valide APK - Anti-debug 1% 1393 40 cryptax 3
pas_valide ELF x64 - Nanomites - Introduction 1% 321 45 Phenol 2
pas_valide ELF x86 - Anti-debug 1% 1124 45 Tosh 3
pas_valide PE x86 - AutoPE 1% 514 45 Gr4ph0s 3
pas_valide ELF x86 - KeygenMe 1% 502 50 int_0x80 5
pas_valide ELF x64 - Anti-debug and equations 1% 240 65 0xmitsurugi 3
pas_valide ELF x64 - Nanomites 1% 183 70 Phenol 2
pas_valide ELF x86 - Packed 1% 292 70 Tosh 3
pas_valide PE x86 - RunPE 1% 628 75 Thanat0s 5
pas_valide ELF x86 - VM 1% 406 90 Thanat0s 7
pas_valide Ringgit 1% 24 110 Cryptanalyse 0
pas_valide White-Box Cryptography #2 1% 15 130 Cryptanalyse 1

Challenge Results Challenge Results

Pseudo Challenge Lang date
YoannDqr   ELF C++ - 0 protection 5 April 2020 at 23:18
axenil   ELF x86 - Basic 5 April 2020 at 23:04
axenil   ELF x86 - 0 protection 5 April 2020 at 23:00
Paff   ELF C++ - 0 protection 5 April 2020 at 22:48
jbedel   ELF x86 - CrackPass 5 April 2020 at 22:37
Paff   PE DotNet - 0 protection 5 April 2020 at 21:58
A.R'0   ELF x86 - 0 protection 5 April 2020 at 21:56
FeedMe   PE x86 - 0 protection 5 April 2020 at 21:53
FeedMe   ELF x86 - Basique 5 April 2020 at 21:26
FeedMe   ELF x86 - 0 protection 5 April 2020 at 21:09