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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. Accede
    UnPackMe · Started by Accede,

    Her is are littel unpackme/enableme from me. I hope its fun for any how solve this. Level = ?? //what your thing If your unpack it can you say what tools your used to unpack it. unpackme.7z

      • Like
    • 7 replies
    • 7.6k views
  2. LoLLo90
    CrackMe · Started by LoLLo90,

    Good day reverser ! I propose today a new crackme that has been created by me and Lollo90.Target : Silver : Create a patched executable; Gold : Create a patched,cleaned executable and reveal the correct password.Programming Language : Visual Basic .NETInfo The program was developed and protected by me and Lollo90. To test your username and your password you have to click the image on the right. A window will open, which will clearly show the success of the crack. At the start, and at the check of the password ,it can seem that is going to crash, wait some seconds and it will works perfectly. Screenshot : http://www.mediafire.com/download.php?4ez99o204jpo144 ht…

      • Like
    • 18 replies
    • 9.7k views
  3. Klinzter
    UnPackMe · Started by Klinzter,

    I have made this little unpackme for themida.. its different than some themida unpackmes in that it was compiled in net framework v4.0 attached are two files one using x64 and the other is x32 bit the vb.net source Public Class Form1 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click MsgBox("Hello") End Sub End Class see attached rar file for packed themida.. lets see who can unpack it and if you do please post the result.. good luck! tuts4you.rar tuts4you_x32.rar

    • 8 replies
    • 8k views
  4. Klinzter
    CrackMe · Started by Klinzter,

    This is a crackme using vb.net the modified app should accept any key and say registered. if you crack it mention what tools you used! CrackMe.rar

      • Like
    • 7 replies
    • 5.8k views
  5. LulzCoder
    UnPackMe · Started by LulzCoder,

    Hello Everyone, I found a nice keygenme and unpackme on http://www.rohitab.com/discuss It's coded by BitLocker, so all credit goes to him. Thought it will fun to solve, thus posted here. Rest about level, see yourself and decide Rules : 1. Unpack the EXE 2. Write a valid Keygen 3. A TutorialOut of rule : 1. No self keygenning 2. No modification in main EXE in any condition If you think I am uploading here to get this solved for myself, then you are wrong. Here is my serial : Name : LulzCoder Serial : OEYyQS1EMDFFLTVDRUEtQjQwQg== UnpackMe+KeygenMe by BitLocker.zip

      • Like
    • 12 replies
    • 8.6k views
  6. tajema.gr
    KeygenMe · Started by tajema.gr,

    TAJEMA-CRACKING GROUP Target No.14 Version:X Unpack and Keygenme v14.x ===STATUS -> Uncrackable Info: Custom Packer & RSA key with custom calculation pattern (HWID) File: TAJ_Keygenme14x.exe Level:11/10 Hello ti everyone, we have posted this keygen on a few forums and no-one found competent to crack it... Its allowed: UNPACKING, PATHING OR KEYGNING... ANY WORKING SOLUTION ;D DO YOUR BEST TO CRACK THE BEST PROTECTION IN THE WORLD Download: http://uppit.com/62nlmbr6azzp/TAJ_Keygenme14x.rarTAJ_Keygenme14x.rar

      • Like
    • 6 replies
    • 12.4k views
  7. Klinzter
    KeygenMe · Started by Klinzter,

    each improved version is harder and more sophisticated but lets see who can get this one since its not packed and its native code. a thanks go out to atom0s and NOP for spending some time with v1.2 if you make a keygen for this keygenme, please rate how hard it was from 1-10 new_v1_3.rar

    • 9 replies
    • 5.2k views
  8. Klinzter
    KeygenMe · Started by Klinzter,

    I made a KeyGenMe for you guys to try. It is packed with Themida 2.2.1.0 see attached file.. KeyGenMe.rar

    • 6 replies
    • 5.7k views
  9. CodeExplorer
    UnPackMe (.NET) · Started by CodeExplorer,

    [unpackme] Babel .NET First time we force de4dot.exe to unknown packer (else de4dot.exe will crash): de4dot.exe C:\Crackme.exe -p un Strings can be decrypted with StringDecryptor: http://forum.tuts4you.com/topic/31329-stringdecryptor/ Delegates and int values still left to be restore! Crackme.zip

      • Like
    • 2 replies
    • 10.9k views
  10. simple
    CrackMe · Started by simple,

    Hey reversers, welcome to my fourth crack me! Name: Simple Crack Me v0.4 Compiler: mingw Protector: Basic custom job Difficulty: Harder than some, easier than others Rules: As always, anything goes! Enjoy and thank you for reversing! CrackMev0.4.rar

    • 2 replies
    • 4.8k views
  11. LordCoder
    KeygenMe · Started by LordCoder,

    Here is my new keygenme! Language: Visual Basic .NET Level: Easy Obfuscator: Nothing Rules: Make a keygen Enjoy! LordCoder KeyGenMe 6.rar

    • 9 replies
    • 5.3k views
  12. JJHACKER
    KeygenMe · Started by JJHACKER,

    Hi Again I came with new one This one a litle Harder. Download http://uppit.com/yzl8rr4m6act/kgm-jjV2.zip'>>http://uppit.com/yzl8rr4m6act/kgm-jjV2.zip

      • Like
    • 1 reply
    • 4.4k views
  13. ghsafsdfsdhfghfgjhgkj
    CrackMe · Started by ghsafsdfsdhfghfgjhgkj,

    • 3 replies
    • 3.9k views
  14. JJHACKER
    KeygenMe · Started by JJHACKER,

    Hi Everyone Download v0.1 http://jjhome.ir/up/index.php/files/get/JTB6p-Qlke/kgm-jj1.zip http://up.ht/Xc1MxV Download v0.2 http://jjhome.ir/up/index.php/files/get/xnCeKQEQ4H/kgm-jj2.zip http://uppit.com/h2gypz8w584n/kgm-jj2.zip Sorry fo Again update!

      • Like
    • 7 replies
    • 5k views
  15. Gladiator
    UnPackMe · Started by Gladiator,

    Hi Please Unpack and rate it's difficulty and my be a little tut about unpacking method in new version. Hint : This file was protected with maximum options with latest version ( Cracked version ) of themida. Thanks.

      • Like
    • 7 replies
    • 11.1k views
  16. tehpro
    KeygenMe · Started by tehpro,

    Your aim is to find the correct serial. Level 1:http://www.sendspace.com/file/yaszb8

    • 2 replies
    • 8.6k views
  17. Greedy_Fly
    KeygenMe · Started by Greedy_Fly,

    Hi, All ... Test It! Rules: Only Keygen Level - ? (Tell me if you know) KeygenMe.zip ------------------------------------------- Greedy_Fly

      • Like
    • 7 replies
    • 5k views
  18. simple
    CrackMe · Started by simple,

    Hey guys, welcome to my third crack me! Compiler: mingw Packer: Hopefully the next one will have this Difficulty: ~3/10 Rules: Anything goes. Wrote this w/patchers in mind, but serial phishing/keygenning would be great too Enjoy, feedback is welcome and thanks for reversing! CMv0.3.rar

    • 9 replies
    • 6.4k views
  19. LordCoder
    KeygenMe · Started by LordCoder,

    Here is my new keygen me! Enjoy! Language: .NET (Visual Basic) Encryptions: Base64 + Custom Level: Easy Obfuscator: Nothing. I prefer to obfuscate by myself . Rules: Keygen or serial accepted. No patching or cracking. Level: I think it's easy. But it confuse so level of 2 or 3. Anyway you decide. Enjoy! LordCoder KgMe 5.rar

      • Like
    • 5 replies
    • 5.1k views
  20. simple
    UnPackMe · Started by simple,

    Hello all, welcome to my first unpackme. It won't make your code smaller though, it's more of a protector. The attached file is a simple window. The goal is to restore the .exe to it's original transparent state, and if it were a real app it could then be reversed. Compiler: mingw Name: simple Difficulty: 1 or 1.5 / 10, no anti reversing/debug Feedback is welcome, do enjoy and thank you for reversing! SimpleUnpackMe.rar

    • 7 replies
    • 6.2k views
  21. Guest 2cool4u
    UnPackMe (.NET) · Started by Guest 2cool4u,

    File packed with Confuser Mod http://www.2shared.com/file/exzECyPg/Chintus_unpackme.html

      • Like
    • 3 replies
    • 8.9k views
  22. nProtect
    UnPackMe · Started by nProtect,

    Compiler : Visual Basic 6.0 here is protection options UnpackMe_Themida2230.rar

      • Like
    • 9 replies
    • 16.5k views
  23. CodeExplorer
    UnPackMe · Started by CodeExplorer,

    [unpackme] DexScator (.NET) Native stub; MSIL is encrypted crackthis_.zip

      • Like
    • 5 replies
    • 8k views
  24. Dreamer
    CrackMe · Started by Dreamer,

    hello protection net reactor 4.5.0.0 main goal unpacking not reversing Crackme.rar

      • Like
    • 8 replies
    • 6.8k views
  25. Greedy_Fly
    KeygenMe · Started by Greedy_Fly,

    Hi, All ... Test It! It should be easy... KeygenMe.zip Rules: Only Keygen + source ---------------------------------------- Greedy_Fly

      • Like
    • 9 replies
    • 5.4k views

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