PYC - Self Modifying (Byte)Code

45 Points  0x0

It’s also possible in Python!

Author

Njörd,  

Level  Difficulty

Validations

90 Challengers 1%

Note  Notation

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22 Votes

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solutions 1 Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang Date
sansong Cracking  PYC - Self Modifying (Byte)Code fr 13 February 2025 at 13:53
yag00 Cracking  PYC - Self Modifying (Byte)Code fr 10 February 2025 at 16:22
choch Cracking  PYC - Self Modifying (Byte)Code fr 10 February 2025 at 16:13
bookie Cracking  PYC - Self Modifying (Byte)Code fr 6 February 2025 at 23:18
ooblix Cracking  PYC - Self Modifying (Byte)Code fr 4 February 2025 at 00:29
danihdms Cracking  PYC - Self Modifying (Byte)Code fr 3 February 2025 at 21:30
asterix45 Cracking  PYC - Self Modifying (Byte)Code fr 1 February 2025 at 13:30
Oblivios Cracking  PYC - Self Modifying (Byte)Code fr 30 January 2025 at 14:39
Arueco Cracking  PYC - Self Modifying (Byte)Code fr 29 January 2025 at 17:59
Leo Cracking  PYC - Self Modifying (Byte)Code en 14 January 2025 at 17:11

challenges 66 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide ELF x86 - 0 protection 14% 47238 5 g0uZ 10 7 October 2006
pas_valide ELF x86 - Basic 11% 38096 5 g0uZ 10 7 October 2006
pas_valide PE x86 - 0 protection 6% 21278 5 alejandr0 7 11 November 2012
pas_valide ELF C++ - 0 protection 4% 11283 10 sourcePerrier 6 13 July 2016
pas_valide Godot - 0 protection 1% 2292 10 Elf 4 10 June 2022
pas_valide PE DotNet - 0 protection 3% 10473 10 Geluchat 6 15 September 2014
pas_valide APK - Introduction 1% 1901 15 Algorab 5 17 October 2022
pas_valide ELF MIPS - Basic Crackme 2% 4379 15 sar 2 9 July 2018
pas_valide ELF x64 - Golang basic 1% 3004 15 jenaye 3 8 November 2018
pas_valide ELF x86 - Fake Instructions 3% 9026 15 kmkz 6 21 February 2010
pas_valide ELF x86 - Ptrace 3% 7925 15 g0uZ 3 27 November 2009
pas_valide Godot - Bytecode 1% 1112 15 Elf 1 10 June 2022
pas_valide WASM - Introduction 1% 1440 15 Cyxo 2 26 March 2021
pas_valide APK - Flutter Debug 1% 619 20 extiop 1 19 June 2022
pas_valide ELF ARM - Basic Crackme 2% 4316 20 0xmitsurugi 7 13 July 2016
pas_valide ELF x64 - Basic KeygenMe 1% 1678 20 fr0g 3 2 September 2020
pas_valide Unity3D Save handling 1% 209 20 Lumy 1 21 July 2023
pas_valide Godot - Mono 1% 730 20 Elf 1 10 June 2022
pas_valide PE DotNet - Basic Anti-Debug 1% 1551 20 nqnt 3 24 March 2021
pas_valide PE DotNet - Basic Crackme 1% 1216 20 nqnt 3 14 April 2021
pas_valide PYC - ByteCode 2% 5300 20 Thanat0s 9 3 July 2013
pas_valide ELF x86 - No software breakpoints 2% 4009 25 yodzeb 9 2 October 2013
pas_valide Lua - Bytecode 1% 817 25 Bernstein 2 25 March 2021
pas_valide MachO x64 - keygenme or not 1% 1541 25 /bin/ls 2 14 April 2017
pas_valide ELF ARM - crackme 1337 1% 2446 30 2 3 February 2011
pas_valide ELF x86 - CrackPass 2% 5284 30 Tosh 5 3 February 2011
pas_valide ELF x86 - ExploitMe 2% 4471 30 kmkz 5 3 February 2011
pas_valide ELF x86 - Random Crackme 1% 3539 30 kmkz 3 3 February 2011
pas_valide GB - Basic GameBoy crackme 1% 1353 30 jambon69 2 14 September 2018
pas_valide PDF - Javascript 1% 1609 30 koma 1 14 February 2012
pas_valide PE x86 - Xor Madness 1% 878 30 ENOENT 3 17 July 2019
pas_valide Powershell DeObfuscation 1% 553 30 hat.time 2 2 April 2021
pas_valide ELF ARM - Crypted 1% 638 35 koma 2 4 September 2012
pas_valide ELF x64 - Crackme automating 1% 1129 35 0xmitsurugi 7 14 August 2018
pas_valide Godot - 3D model 1% 461 35 Elf 1 10 June 2022
pas_valide NRO ARM - Switch homebrew 1% 118 35 Elf 0 21 July 2023
pas_valide PE x86 - SEHVEH 1% 1258 35 Thanat0s 1 4 May 2013
pas_valide APK - Anti-debug 1% 2722 40 cryptax 3 18 December 2012
pas_valide APK - Insomni’Droid 1% 1683 40 cryptax 1 4 March 2012
pas_valide ELF x64 - Rust backdoor 1% 133 40 Elf 0 21 July 2023
pas_valide ELF x64 - Rust Crackme 1% 162 40 extiop 0 17 October 2022
pas_valide PE x64 - UEFI Secure Boot 1% 144 40 Solden 1 10 May 2023
pas_valide APK - Root My Droid 1% 1182 45 koma 1 26 February 2012
pas_valide ELF x64 - Nanomites - Introduction 1% 770 45 Phenol 4 4 March 2018
pas_valide ELF x86 - Anti-debug 1% 1847 45 Tosh 4 3 June 2012
pas_valide PE DotNet - KeygenMe 1% 278 45 nqnt 1 14 April 2021
pas_valide PE x64 - Tables in shambles 1% 86 45 0xTRIKKSS 0 28 December 2023
pas_valide PE x86 - AutoPE 1% 859 45 Gr4ph0s 3 5 August 2011
pas_valide PYC - Self Modifying (Byte)Code 1% 90 45 Njörd 1 28 December 2023
pas_valide PYC - Snakeygen 1% 173 45 erk3 0 17 October 2022
pas_valide ELF x86 - KeygenMe 1% 903 50 int_0x80 5 20 July 2011
pas_valide HackerMan 1% 77 50 LordRoke , Stealer , Sengengie 1 10 May 2023
pas_valide Unity - Mono - Basic Game Hacking 1% 135 50 0x0ff 1 17 October 2022
pas_valide WASM - Find the NPC 1% 247 50 Cyxo 3 26 March 2021
pas_valide Bash - VM 1% 312 60 govlog 2 25 March 2021
pas_valide ELF x64 - KeyGenMe 1% 165 60 rene-d 1 12 November 2020
pas_valide ELF x64 - Anti-debug and equations 1% 432 65 0xmitsurugi 4 18 July 2016
pas_valide Unity - IL2CPP - Basic Game Hacking 1% 57 65 0x0ff 0 21 July 2023
pas_valide ELF x64 - Nanomites 1% 414 70 Phenol 2 4 March 2018
pas_valide ELF x86 - Packed 1% 440 70 Tosh 3 18 October 2011
pas_valide PE x86 - RunPE 1% 975 75 Thanat0s 5 16 December 2013
pas_valide ELF x86 - VM 1% 619 90 Thanat0s 7 16 June 2013
pas_valide ELF x64 - Hidden Control Flow 1% 144 100 so3 1 18 November 2020
pas_valide Ringgit 1% 100 110 Cryptanalyse 2 6 October 2019
pas_valide Voracious Nanomites 1% 22 110 Kasen 0 21 July 2023
pas_valide White-Box Cryptography #2 1% 73 130 Cryptanalyse 1 17 July 2019