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Challenge of Reverse Engineering

Try a challenge or contribute your own, any platform or operating system...

The creation of new topics is disabled in these subforum categories.

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  1. CodeNatif
    UnPackMe (.NET) · Started by CodeNatif,

    Only obfuscated with ConfuserEX. The objective is to unpack and crack the file. CrackMe - ConfuserEX.rar

      • Like
    • 11 replies
    • 20k views
  2. learningit25
    UnPackMe (.NET) · Started by learningit25,

    NETProtect.IO v2.0.0 This unpackme was protected using NETProtect.IO using protection options shown in the screenshot. Nice to meet guys in forum. File Information Submitter learningit25 Submitted 04/30/2021 Category UnPackMe (.NET) View File

  3. OnlyMe
    KeygenMe · Started by OnlyMe,

    Language : Python 2.x Platform : Windows x64/x86 OS Version : Windows (I'm not testing other platforms) Packer / Protector : UPX / PyInstaller Description : Hello, it is my first keygenme. I don't know other programming language because of I had been written with Python. I think of it is easy. Screenshot :  main.exe

  4. 0x777h
    CrackMe · Started by 0x777h,

    Users Desktop CrackMe #2 This is the beta version of vxlang ! The purpose of this is to find an encrypted string. Thank you. File Information Submitter 0x777h Submitted 12/02/2022 Category CrackMe View File

  5. zodiac
    UnPackMe (.NET) · Started by zodiac,

    Difficulty : 5 Language : .NET C# Platform : Windows .x32/x64 OS Version : All Windows Packer / Protector : DotNetPatcher 4.5.9 (last Version) Description : max Protaction. note Method and tutorial how to unpack it. The file should be runnable after unpacking it Screenshot : unpackme.zip

  6. 0x777h
    CrackMe · Started by 0x777h,

    Users Desktop CrackMe #1 This is a demo of the packer. Demo is to find a password. (used simple anti-debugging and code-virtualization.) Thank you File Information Submitter 0x777h Submitted 10/25/2022 Category CrackMe View File

  7. 0xNOP
    UnPackMe (.NET) · Started by 0xNOP,

    Difficulty : 4.5 Language : .NET Platform : Windows IA-32, IA x86-x64 OS Version : All Windows (Must have at least .NET Framework 4.5+ to run!) Packer / Protector : NOPFuscator v2.0 Description : Nothing much from my end, just sitting here and waiting til someone can break into this new entry :"D - Just Unpack, if you feel adventurous enough to Crack it, Go ahead Hope Ya'll have fun with it since I posted this in the UnPackme's Area, an entry will be taken as solution when the program is completely deobfuscated, as the cracking part is only optional. Screenshot : crackmetonki.exe

      • Like
    • 11 replies
    • 11.2k views
  8. Benten
    KeygenMe · Started by Benten,

    Brute-Force Polynomial for Coefficients. Here is a keygen challenge I got recently. This one requires to find the coefficients of a 26th degree polynomial that sums up to a specific value. A valid serial is also provided. The challenge is to code a keygen with least / reasonable time complexity without patching anything. Update: Added my initial code that barely works. Please let me have your suggestions to improve the code. File Information Submitter Benten Submitted 11/14/2022 Category KeygenMe View File

  9. DarkShadow
    UnPackMe (.NET) · Started by DarkShadow,

    NiggaEX Unpack and provide a overview of how you did it and what tools were used. File Information Submitter DarkShadow Submitted 02/13/2022 Category UnPackMe (.NET) View File

  10. RockStar
    UnPackMe (.NET) · Started by RockStar,

    Language : .NET Platform : Windows OS Version : x64 Packer / Protector : Phoenix + Beds + ILprotector + Enigma (ILprotector + Enigma + Beds = Paid + Newest Versions) Description : Let us know how it was done! Sorry Mods For File Size (Enigma Seems To Increase The File Size No Matter What As Well As IlProtector I can Show Proof And Protect In front If Need Be) Screenshot : Download File: Download Unpack_Me.rar

  11. Athena
    UnPackMe (.NET) · Started by Athena,

    Olivia Guard v1.3 The file is protected with Olivia Guard v1.3. The protection in currently in beta, it's not completed yet. Goal : Unpack the file and provide details of the methods you used to bypass the protection. File Information Submitter Athena Submitted 06/19/2022 Category UnPackMe (.NET) View File

  12. Reasen
    UnPackMe · Started by Reasen,

    Simple Unpackme maded by Safengine Shielden v2.3.7.0 Options: Default Target file: Delphi 7 Good luck. UnpackMe_Safengine.rar

  13. BataBo
    UnPackMe (.NET) · Started by BataBo,

    Experimental JIT I've been playing with jit recently and have created this crack me, try to find the correct key or unpack. File Information Submitter BataBo Submitted 09/10/2021 Category UnPackMe (.NET) View File

      • Thanks
      • Like
    • 3 replies
    • 8.2k views
  14. whoknows
    UnPackMe (.NET) · Started by whoknows,

    Oceans Winlicense v3.1.2 File protected by Winlicense, asking for registration code, when valid inserted a small game appears. Purpose is to dump the .net code of this game, File Information Submitter whoknows Submitted 09/06/2022 Category UnPackMe (.NET) View File

  15. Prab
    UnPackMe (.NET) · Started by Prab,

    Language : C# Platforms : Windows Packer/obfuscator : EazFuscator 2019.1 Description : Hi everyone, hope one of you friends can unpack the target and teach us how to unpack it Screenshot : Virustotal : https://www.virustotal.com/gui/file/c55f28ff985269defec68e58287b45b7fde932003358e5faad51210ce3ab4421/detection Download : Crackme.exe

  16. RDGMax
    CrackMe · Started by RDGMax,

    RDG Crackme 2022 Hello my friends. here a new crackme! RDG Crackme 2022 vb6 Level 7 / 10 Compiled: Microsoft Visual Basic v6.0 Anti Tracing: Yes Anti Debugger: Yes (Of Course) Anti Newby: yes Obfuscated: Yes (RDG vb6 Obfuscator) Anti Virtual Machine: Yes Anti SandBox: Yes Malicious payload: NO! Internet Validation: Yes CRC On Disk: Yes CRC On Memory: NO Admin Required: Yes Support Windows XP to Windows 11 Goal: Get Activation Code x 2 rdgmax@gmail.com rdgmax@rdgsoft.net www.rdgsoft.net http://rdgsoft.net/downloads/Crackme_2022/RDG_Crackme_2022.rar thanks a lot! File Information …

    • 0 replies
    • 6k views
  17. Shade Of Vengeance
    CrackMe · Started by Shade Of Vengeance,

    [ CyberLock ] License System CrackMe Challenge Hi, This is a simple crack me challenge protected by my own crafted packer, I don't know how hard is to break it but I assure you it's a good challenge. Challenges Pro Mode : Break the license checking system and find the key, activate the program, It will give you a quote of a famous philosopher, post a screenshot from it here, Share your solution if possible. God Mode : Crack the license checking system and patch it to accept any key as a valid key, Share the cracked file. Share your solution if possible. If you need hint and more details about protector visit Authors Solution tab. …

    Shade Of Vengeance
    Shade Of Vengeance
  18. BataBo
    KeygenMe · Started by BataBo,

    Plain This is a little past time project I have been working on, here I put an interesting spin to conventional c# obfuscation. Try to unpack this file or at least keygen it. File Information Submitter BataBo Submitted 08/05/2022 Category KeygenMe View File

  19. Fatulatti
    UnPackMe (.NET) · Started by Fatulatti,

    Difficulty : 5 (Unsure) Language : . NET Platform : Windows OS Version : Windows 10 Packer / Protector : Eazfuscator.NET 2018.4 + Themida + Custom (somewhat) "Anti Debug" Description : Unpack the file and upload the unpacked file + a tutorial on how to unpack it, if possible. Screenshot :  CrackMe.exe

  20. whoknows
    UnPackMe (.NET) · Started by whoknows,

    Eazfuscator v2021.2 +virtualization +control flow obfuscation +resource encryption +module initializer +symbol names Unpack and / or provide a valid serial. File Information Submitter whoknows Submitted 07/29/2021 Category UnPackMe (.NET) View File

  21. ParanoiaR
    UnPackMe (.NET) · Started by ParanoiaR,

    Hi..just take a look to the crackme and try to solve it.. if you success with it..,upload and if possible , make a documentation for it.. Protector : .NET Reactor 4.7.0.0 [Demo Version] Protection Preset : Application Strongest NecroBit Native EXE File Pre-JIT Methods Anti ILDASM Obfuscation Anti Tampering String Encryption Compress & Encrypt Resources Control Flow Obfuscation Level 9 CrackMe.zip

      • Like
    • 12 replies
    • 18.5k views
  22. nova789
    UnPackMe (.NET) · Started by nova789,

    ArmDot 2022.6.0 Unpack the exe to find the key! If you would give a brief explanation on how you unpacked it. The exe has max protections and will pop up a messagebox once you enter the correct password. Protections added to this: Hide String, Control Flow, Obfuscate Name, Obfuscate NameSpaces, Virtualize code. File Information Submitter nova789 Submitted 06/22/2022 Category UnPackMe (.NET) View File

  23. SuperJackAbcd
    CrackMe · Started by SuperJackAbcd,

    Simple C++/CLI Crackme x64bit Your goal is to crack the file and make a tutorial and/ or write instructions about the steps done by you. What is C++/CLI? C++/CLI is C++ support .NET framework to make managed application run on .NET framework. https://en.wikipedia.org/wiki/C%2B%2B/CLI Feel free to post your solutions. File Information Submitter SuperJackAbcd Submitted 01/26/2022 Category CrackMe View File

  24. m0rfl1ng
    CrackMe · Started by m0rfl1ng,

    My first easy CrackMe Hi guys , i write a very simple crack me , i really do not know how i should secure my code just write a very basic one . anyway i know it's very easy but still wanted to know other peoples opinion. if it did not run please let me know , i did not use any packer , or protector , just my own code , and it's written in C++ with visual studio 2019 on windows 10. Submitter: m0rfl1ng Category: CrackMe Virus Total Scan File Information Submitter m0rfl1ng Submitted 11/28/2020 Category CrackMe View File

  25. vietnguyen09
    UnPackMe (.NET) · Started by vietnguyen09,

    SmartAssembly 7 SmartAssembly 7 full encryption options with a few tricky class inside source code. When you enter license key correctly, a messenger with the Success!!! will show. Good luck. File Information Submitter vietnguyen09 Submitted 04/14/2021 Category UnPackMe (.NET) View File

      • Like
    • 6 replies
    • 22.5k views

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