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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

A topic will then automagically be created and posted in these forums...

  1. 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
    • 13.9k views
  2. 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

  3. 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
    • 7.1k views
  4. 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
    • 10.2k views
  5. 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
    • 6.8k views
  6. 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
    • 7k views
  7. 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
    • 31.3k views
  8. 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
    • 7.9k views
  9. 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
    • 15.9k views
  10. 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

  11. 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
    • 20k views
  12. 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
    • 6.5k views
  13. 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
    • 7.8k views
  14. 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
    • 9.2k views
  15. 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

  16. b1scoito
    UnPackMe (.NET) · Started by b1scoito,

    Difficulty : (4.7) Language : (.NET) Platform : (Windows x32/x64) OS Version : (All) Packer / Protector : (ConfuserEX Mod) Description : (Unpack me!) Screenshot : Crack-me.exe

      • Like
    • 6 replies
    • 14.1k views
  17. Kazura
    UnPackMe (.NET) · Started by Kazura,

    Language : . NET Platform : Windows OS Version : Windows 7/Windows 8/Windows 10 Packer / Protector : Archangel Cloak .NET Description : Unpack the file and attached here. Write tutorial please. Screenshot :  Cloaked.rar

      • Like
      • Thanks
      • Haha
    • 4 replies
    • 7.6k views
  18. MulaB
    UnPackMe (.NET) · Started by MulaB,

    Difficulty : ~/10 ( I dont know ) Language : . NET Platform : Windows OS Version : Windows 7/Windows 8/Windows 10 Packer / Protector : Appfuscator String Encryption + Code Displacer Description : Unpack the file and get the password. Upload the file with a small tutorial if possible it would be highly appreciated. Screenshot :  Unpackme.rar

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

    Difficulty : Probably 7 Language : C# .NET Platform : Windows (anyCPU) OS Version : Windows 7 Above Packer / Protector : Confuserex Modded by Cµrsëd$hëëp v3 Description : Upload the Unpacked file and Give me a detailed tutorial. like... tell me the specific method or specfic tools you used in order. as i said in the previous unpack challenges XD. Also tell me how'd you decrypt the methods and strings. ConsoleApplication3.exe

      • Like
    • 3 replies
    • 8.1k views
  20. Cursedzx
    UnPackMe (.NET) · Started by Cursedzx,

    Difficulty : Probably 4 Language : C# .NET Platform : Windows (anyCPU) OS Version : Windows 7 Above Packer / Protector : Modded ConfuserEx v1.0.0 by Cµrsëd$hëëp v2 Description : Upload the Unpacked file and Give me a detailed tutorial. like... tell me the specific method or specific tools you used in order. Screenshot : UnpackMe.exe

    • 4 replies
    • 10.5k views
  21. 4r1
    UnPackMe · Started by 4r1,

    Hi all, I made an unpackme. Hope you enjoyed. Tutorials are welcome. 4r1 unpackme.zip

      • Like
    • 9 replies
    • 20.2k views
  22. xSilent
    KeygenMe · Started by xSilent,

    Language: .NET Platform: Windows / any OS with Mono OS Version: Any Protection: My little VM Description: I'm just curious about how strong my VM is so far. Good luck Screenshot: KeygenMe.7z

      • Thanks
      • Like
    • 4 replies
    • 10.1k views
  23. Reasen
    UnPackMe · Started by Reasen,

    Difficulty : Unknown Language : Delphi XE8 Platform : Windows x86/x64 OS Version : XP and above Packer / Protector : Safengine Shielden v2.3.8.0 Max Options + Virtualized button Function using Safengine SDK Description : This Safengine Version(last one) have support for virtualize the parts of the executable you want, i virtualized the button with the function (cracked or not cracked) and packed the executable with it, Good luck! SafengineCrackMe.zip Screenshot :

  24. mattheig
    CrackMe · Started by mattheig,

    Language: C/C++ Platform: Windows x86 OS Version: Windows Packer / Protector: None Description: Simple obfuscation. Change "input a number" text. Gold: add +1 to sum factorial Screenshot: OBFTest.exe

      • Like
    • 3 replies
    • 8.4k views
  25. Sayness
    CrackMe · Started by Sayness,

    Language : .NET Platform : Windows Packer / Protector : Confuserex mod OS Version : (Windows 7, Windows 8, Windows 10) Description : uncompress the file for to see the code and at the end the file works with the password Screenshot : CrackMe.exe

    • 2 replies
    • 6.5k views

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