ELF x64 - Hidden Control Flow

100 Points  0x0

Control Flow Graph Flattening

Author

so3,  

Level  Difficulty

Validations

169 Challengers 1%

Note  Notation

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59 Votes

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solutions 1 Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang Date
Beback Cracking  ELF x64 - Hidden Control Flow fr 24 November 2025 at 11:39
briskness-alive-tinderbox Cracking  ELF x64 - Hidden Control Flow en 10 November 2025 at 20:03
ap10 Cracking  ELF x64 - Hidden Control Flow fr 7 November 2025 at 16:58
heyehey67 Cracking  ELF x64 - Hidden Control Flow en 15 October 2025 at 00:37
naku Cracking  ELF x64 - Hidden Control Flow fr 13 October 2025 at 18:27
X-OR Cracking  ELF x64 - Hidden Control Flow fr 5 October 2025 at 01:17
Fawlen Cracking  ELF x64 - Hidden Control Flow fr 3 October 2025 at 10:33
s7ven Cracking  ELF x64 - Hidden Control Flow fr 13 August 2025 at 13:32
Leo Cracking  ELF x64 - Hidden Control Flow fr 12 August 2025 at 20:58
AlexsB Cracking  ELF x64 - Hidden Control Flow fr 4 August 2025 at 14:59

challenges 70 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% 50923 5 g0uZ 10 7 October 2006
pas_valide ELF x86 - Basic 11% 41109 5 g0uZ 10 7 October 2006
pas_valide PE x86 - 0 protection 7% 23257 5 alejandr0 7 11 November 2012
pas_valide ELF C++ - 0 protection 4% 12557 10 sourcePerrier 6 13 July 2016
pas_valide Godot - 0 protection 1% 3150 10 Elf 5 10 June 2022
pas_valide PE DotNet - 0 protection 3% 11351 10 Geluchat 6 15 September 2014
pas_valide APK - Introduction 1% 2510 15 algorab 5 17 October 2022
pas_valide ELF MIPS - Basic Crackme 2% 4941 15 sar 2 9 July 2018
pas_valide ELF x64 - Golang basic 1% 3378 15 jenaye 3 8 November 2018
pas_valide ELF x86 - Fake Instructions 3% 9551 15 kmkz 6 21 February 2010
pas_valide ELF x86 - Ptrace 3% 8426 15 g0uZ 3 27 November 2009
pas_valide Godot - Bytecode 1% 1419 15 Elf 1 10 June 2022
pas_valide WASM - Introduction 1% 1715 15 Cyxo 2 26 March 2021
pas_valide APK - Flutter Debug 1% 788 20 extiop 1 19 June 2022
pas_valide ELF ARM - Basic Crackme 2% 4769 20 0xmitsurugi 7 13 July 2016
pas_valide ELF x64 - Basic KeygenMe 1% 2001 20 fr0g 3 2 September 2020
pas_valide Unity3D Save handling 1% 310 20 Lumy 2 21 July 2023
pas_valide Godot - Mono 1% 903 20 Elf 1 10 June 2022
pas_valide PE DotNet - Basic Anti-Debug 1% 1805 20 nqnt 3 24 March 2021
pas_valide PE DotNet - Basic Crackme 1% 1412 20 nqnt 3 14 April 2021
pas_valide PYC - ByteCode 2% 5586 20 Thanat0s 9 3 July 2013
pas_valide Basic ? crackme 1% 467 25 Dvorhack 1 14 March 2025
pas_valide ELF x86 - No software breakpoints 2% 4244 25 yodzeb 9 2 October 2013
pas_valide Lua - Bytecode 1% 994 25 Bernstein 2 25 March 2021
pas_valide MachO x64 - keygenme or not 1% 1653 25 /bin/ls 2 14 April 2017
pas_valide ELF ARM - crackme 1337 1% 2633 30 2 3 February 2011
pas_valide ELF x86 - CrackPass 2% 5610 30 Tosh 5 3 February 2011
pas_valide ELF x86 - ExploitMe 2% 4709 30 kmkz 5 3 February 2011
pas_valide ELF x86 - Random Crackme 1% 3747 30 kmkz 3 3 February 2011
pas_valide GB - Basic GameBoy crackme 1% 1471 30 jambon69 2 14 September 2018
pas_valide PDF - Javascript 1% 1706 30 koma 1 14 February 2012
pas_valide PE x86 - Xor Madness 1% 990 30 ENOENT 3 17 July 2019
pas_valide Powershell DeObfuscation 1% 646 30 hat.time 2 2 April 2021
pas_valide ELF ARM - Crypted 1% 668 35 koma 2 4 September 2012
pas_valide ELF x64 - Crackme automating 1% 1242 35 0xmitsurugi 7 14 August 2018
pas_valide EVM - Bytecode 1% 51 35 Elf 0 14 March 2025
pas_valide Godot - 3D model 1% 557 35 Elf 1 10 June 2022
pas_valide NRO ARM - Switch homebrew 1% 143 35 Elf 0 21 July 2023
pas_valide PE x86 - SEHVEH 1% 1343 35 Thanat0s 1 4 May 2013
pas_valide APK - Anti-debug 1% 2924 40 cryptax 3 18 December 2012
pas_valide APK - Insomni’Droid 1% 1792 40 cryptax 1 4 March 2012
pas_valide ELF x64 - Rust backdoor 1% 213 40 Elf 0 21 July 2023
pas_valide ELF x64 - Rust Crackme 1% 216 40 extiop 1 17 October 2022
pas_valide PE x64 - UEFI Secure Boot 1% 183 40 Solden 1 10 May 2023
pas_valide APK - Root My Droid 1% 1261 45 koma 1 26 February 2012
pas_valide ELF x64 - Nanomites - Introduction 1% 860 45 Phenol 4 4 March 2018
pas_valide ELF x86 - Anti-debug 1% 1990 45 Tosh 4 3 June 2012
pas_valide PE DotNet - KeygenMe 1% 312 45 nqnt 1 14 April 2021
pas_valide PE x64 - Tables in shambles 1% 125 45 0xTRIKKSS 0 28 December 2023
pas_valide PE x86 - AutoPE 1% 907 45 Gr4ph0s 3 5 August 2011
pas_valide PYC - Self Modifying (Byte)Code 1% 132 45 Njörd 1 28 December 2023
pas_valide PYC - Snakeygen 1% 216 45 erk3 0 17 October 2022
pas_valide ELF x86 - KeygenMe 1% 968 50 int_0x80 5 20 July 2011
pas_valide HackerMan 1% 103 50 LordRoke , Stealer , Sengengie 1 10 May 2023
pas_valide Unity - Mono - Basic Game Hacking 1% 160 50 0x0ff 1 17 October 2022
pas_valide WASM - Find the NPC 1% 296 50 Cyxo 3 26 March 2021
pas_valide PE DotNet - Memory Protect 1% 33 55 Vozec 0 14 March 2025
pas_valide Bash - VM 1% 360 60 govlog 2 25 March 2021
pas_valide ELF x64 - KeyGenMe 1% 195 60 rene-d 1 12 November 2020
pas_valide ELF x64 - Anti-debug and equations 1% 460 65 0xmitsurugi 4 18 July 2016
pas_valide Unity - IL2CPP - Basic Game Hacking 1% 75 65 0x0ff 0 21 July 2023
pas_valide ELF x64 - Nanomites 1% 456 70 Phenol 2 4 March 2018
pas_valide ELF x86 - Packed 1% 461 70 Tosh 3 18 October 2011
pas_valide PE x86 - RunPE 1% 1083 75 Thanat0s 5 16 December 2013
pas_valide PE32+ - KeygenMe 1% 29 85 Redouane 0 14 March 2025
pas_valide ELF x86 - VM 1% 664 90 Thanat0s 7 16 June 2013
pas_valide ELF x64 - Hidden Control Flow 1% 169 100 so3 1 18 November 2020
pas_valide Ringgit 1% 113 110 Cryptanalyse 2 6 October 2019
pas_valide Voracious Nanomites 1% 31 110 Kasen 0 21 July 2023
pas_valide White-Box Cryptography #2 1% 78 130 Cryptanalyse 1 17 July 2019