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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.

Please create and post your new challenges in the appropriate subcategory of Downloads > Challenge of Reverse Engineering

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

    Language : C# Difficulty : idk Platform : Windows Packer/obfuscator : COrona_obfuscator Description : Want To see if the protections is good enough. Corona_Vm is basically SOme one modded KOIVM idk if its good so yeah ScreenSHot Spoiler VT :https://www.virustotal.com/gui/file/892dccbe1089f8b59827c1199f61cd40e8f74b9642b9965648d457dfd45fe425/detection DL : https://bayfiles.com/n8U0jdkbo9/ConsoleApp2_exe ConsoleApp2.zip

      • Like
      • Thanks
    • 5 replies
    • 5.7k views
  2. ShockByte
    CrackMe · Started by ShockByte,

    Language: C++ Platform: Windows OS Version: Windows 7,8,8.1,10 Packer / Protector : None Virus Total: Scan result secret_storage.exe

    • 3 replies
    • 5k views
  3. localhost0
    UnPackMe (.NET) · Started by localhost0,

    Language : C# Difficulty : Hard Platform : Windows Build : x86-x64 Packer/Obfuscator : SafeVM Description : I want to see how strong the protection is. Screenshot : Protected.rar

      • Thanks
    • 4 replies
    • 14.5k views
  4. localhost0
    UnPackMe (.NET) · Started by localhost0,

    Language : C# Difficulty : Hard Platform : Windows Packer/Obfuscator : SafeVM Description : I want to see how strong the protection is. Screenshot : Protected.rar

    • 4 replies
    • 6.5k views
  5. Tetris
    CrackMe · Started by Tetris,

    Language : C++ Platform : Windows x64 OS Version : Windows 10 Packer / Protector : None Description : Find the password or call the verified function. Screenshot : CrackMe.exe

    • 1 reply
    • 7.2k views
  6. xdd
    UnPackMe (.NET) · Started by xdd,

    Difficulty : 7 Language : C#/C++ Platform : Windows OS Version : Windows 10 Packer / Protector : Appfuscator trial + ilprotector + themida on ilprotector dlls Description : Try to unpack this application. Screenshot : Download: UnpackMe.rar

      • Confused
      • Like
    • 4 replies
    • 8k views
  7. localhost0
    UnPackMe (.NET) · Started by localhost0,

    Language : .NET Platform : Windows 32/64 bit OS Version : Tested on Win10 only, Win 7 and 8 also probably work Packer / Protector : Modded KoiVM and XXXX Level : 10/8 Description : Good luck everyone. Screenshot : Protected.rar

    • 0 replies
    • 5.8k views
  8. localhost0
    UnPackMe (.NET) · Started by localhost0,

    Language : C# .Net Platform : Windows x32/x64 OS Version : All Packer / Protector : KoiVM and Enigma Description : U N P A C K M E Screenshot: Crack ME.exe

      • Confused
    • 2 replies
    • 6.7k views
  9. kao
    KeygenMe · Started by kao,

    PATCH IS NOT AN ACCEPTABLE SOLUTION. PATCH IS NOT AN ACCEPTABLE SOLUTION. PATCH IS NOT AN ACCEPTABLE SOLUTION. Difficulty : 5/10 (Professional problem to solve) Language : .NET Platform : Windows OS Version : All Protection : Custom VM + some crypto. Description : Learn something new today! If you already know how to deal with simple Virtual Machines, hopefully the crypto will keep you busy for a while.. However, it's designed to be broken, so better get cracking! Goals : Bronze medal: devirtualize the code. To claim the prize, you must provide human-understandable serial checking code that works exactly the same as original. Short …

      • Thanks
      • Haha
      • Like
    • 24 replies
    • 22k views
    Extreme Coders
    Extreme Coders
  10. Tester009
    KeygenMe · Started by Tester009,

    Level: 6/10 ? Language : MASM Platform : Windows 32 bit OS Version : Tested on Win10 only, Win 7 and 8 also probably work Packer / Protector : None Description : Mostly simple math algorithms; it includes one relatively small hash part that's mostly isolated, so you can choose to ignore that part and focus on the remainder of the serial. I reckon the number of valid serials will be relatively low. Hopefully I made no big mistakes. Provide a valid pair of name and serial, or better yet write a keygen Good luck. Screenshot : KeyGenMe#1.v1.7z Keygenme template by Ziggy.

    • 0 replies
    • 13.7k views
  11. zodiac
    UnPackMe (.NET) · Started by zodiac,

    Language : . NET Platform : Windows OS Version : Windows 7/Windows 8/Windows 10 Packer / Protector : ILProtector + Enigma Description : Unpack the file and get the password. Screenshot :  Test_protected.rar

  12. Thursday
    KeygenMe · Started by Thursday,

    Difficulty : 3 Language : Borland Delphi Platform : Windows OS Version : All Packer / Protector : DotNet Reactor v3.0 - v3.2 protected ! Screenshot: Client .exe

    • 0 replies
    • 6.9k views
  13. s3rh47
    KeygenMe · Started by s3rh47,

    Difficulty : 7 Language : Assembler Platform : Windows x32 OS Version : All Windows Packer / Protector : None and No Crypto Description : Rules : No Patch , No Brute.. Only Keygen or Valid Serial... This KeyGen Me is a little hard for non Math Knowers . I think Bruteforce and Self-Keygen is not possible. You must solve the Mat Function to the write a Keygen. i Wish good luck and have fun to solve the KeygenMe Best regards.. Screenshot : s3rh47&x0rz-KeygenMe_new.rar

      • Like
    • 10 replies
    • 9.9k views
  14. SuperKungsMan
    CrackMe · Started by SuperKungsMan,

    Language : Delphi Platform : Windows OS Version : Windows 7,8,8.1,10 Packer / Protector : VM Description A Simple CrackMe Solve the missing key. The key is just a number. After you done it, post a simple write-up plz. I upload the file to my github because of the file size. Good Luck XD KungsCrackMe.exe (7.68MB)

    • 2 replies
    • 6.7k views
  15. Raphael
    UnPackMe (.NET) · Started by Raphael,

    HI Language : .NET Platform : Windows x32/x64 OS Version : All Packer / Protector :.NET Crypter / vmprotect (CRC Checking) Description : Unpack, and give a quick tut on how you did it unpackme.rar

    • 2 replies
    • 6.8k views
  16. Arctic
    UnPackMe (.NET) · Started by Arctic,

    Language: .NET Platform: Windows OS Version: All Packer/Protector: VMProtect Ultimate 3.4.0 (Build 1155) Description: Unpack the file and get the password (along with some brief explanation). Would like to see if anyone can have a go at VMProtect's new .NET implementation. Good luck VMP Settings used: Anti-Debugger : User+Kernel Anti-VM: No Protections: Memory + Pack Output Screenshot: VMP3.4.zip

      • Like
      • Thanks
    • 3 replies
    • 30.8k views
  17. Modify
    KeygenMe · Started by Modify,

    Difficulty: 1 Language : .NET Platform : Windows OS Version : Windows 7 Packer / Protector : Private Description : UnPack + KeyGen Screenshot : PPB_KeyGenMe.rar

    • 0 replies
    • 7.5k views
  18. MindSystem
    UnPackMe (.NET) · Started by MindSystem,

    Hello everybody Here's a simple unpackme The File is packed with Dotnet Protector last version Enjoy ! EDIT : the new unpackme is attached here Protected.rar

      • Thanks
      • Like
    • 22 replies
    • 19.1k views
  19. jemmg
    UnPackMe (.NET) · Started by jemmg,

    Difficulty : 6-7 Language : C# Platform : Windows OS Version : All Packer / Protector : ConfuserEx Modded Description : Your task is to unpack the file and attach the password and the unpacked file Screenshot : UnpackMe.rar

      • Like
    • 8 replies
    • 15.2k views
  20. McKfc
    UnPackMe (.NET) · Started by McKfc,

    Difficulty : 6.0 Language : .NET Platform : Windows x32/x64 OS Version : All Packer / Protector : ConfuserEX Custom Description : Unpack, and give a quick tut on how you did it ConfuserEx_UnpackMe.exe

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

    Hello members of Tuts4You Today I bring a crackme + UnPackMe of the obfuscator obfuscator good protection that protects the strings and methods, I use it and I do well Good luck in cracking it and unpack aver if you can;) UnPackMe + CrackMe AppFuscator Free Trial.rar

      • Like
    • 21 replies
    • 19.6k views
  22. VenTaz
    UnPackMe (.NET) · Started by VenTaz,

    Language : .NET Platform : Windows OS Version : x64 Packer / Protector : Private Protector Description : Please let me know the entire method to unpack this. Screenshot : UnpackMe.exe

    • 3 replies
    • 6.2k views
  23. Fr4x
    UnPackMe (.NET) · Started by Fr4x,

    Language : (C# .Net) Platform : (Windows x32/x64) OS Version : (All) Packer / Protector : (NetGuard.io) Description : Hi everyone, hope one of you friends can finally full unpack netguard and teach us how to unpack this crap protector Screenshot : UnpackMe_protected.exe

      • Thanks
      • Like
    • 13 replies
    • 7.3k views
  24. amoamare
    UnPackMe (.NET) · Started by amoamare,

    Language : .Net Framework 4.0 Platform : Windows x86 OS Version : ( Windows 7 and higher.) Packer / Protector : VMProtect Demo (.NET Support) Description : VMProtect introduce their own .NET solution. This a sample software from their own SDK protected with VMProtect Demo using Ultra (Mutation + Virtualization) Would like to see who and what can be recovered from source and how much of original source can be recovered. Screenshot : Project1.vmp.exe

      • Like
    • 5 replies
    • 8.8k views
  25. ElektroKill
    UnPackMe (.NET) · Started by ElektroKill,

    Language : .NET Platform : Windows OS Version : All Packer / Protector : Modified ConfuserEx + KoiVM Description: I don't expect this to be anything extremly hard to unpack. I would like to see a full detailed explanation of how you unpacked this file and the key. Screenshot: Protected.zip

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