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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. 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 :

  2. 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
  3. 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
  4. Leila.Morar48
    CrackMe · Started by Leila.Morar48,

    Language : C++ Platform : Windows x32 OS Version : (Windows 7-10) Packer / Protector : None Description : Find password Screenshot : VT VM_CrackMe.exe

      • Like
    • 2 replies
    • 5.8k views
  5. SunshineProtector
    KeygenMe · Started by SunshineProtector,

    Language : VB.NET Platform : Windows x86 / x64 OS Version : All Packer / Protector : ConfuserEx Modded Description : Get the key and verify. Screenshot : Crack-me.exe

      • Like
    • 1 reply
    • 11.8k views
  6. GautamGreat
    KeygenMe · Started by GautamGreat,

    Difficulty : 2 (I guess) Language : C++ Platform : Windows OS Version : All Packer / Protector : None Description : It is a simple keygenme challenge. Coded in C++, solution is only a working keygen. Screenshot : KeygenMe #2.rar

    • 1 reply
    • 20.2k views
  7. mattheig
    CrackMe · Started by mattheig,

    Language : C++ Platform : Windows x64 OS Version : Windows Packer / Protector : none Description  A Simple CrackMe Solve the missing key. If u don't find key - Patch it.  Screenshot CrackMe.exe

      • Like
      • Thanks
    • 6 replies
    • 5.9k views
    HostageOfCode
    HostageOfCode
  8. lemonrain
    UnPackMe · Started by lemonrain,

    please unpack it and make a tutorial. downlink also: http://www37.zippyshare.com/v/63867645/file.html unpackme.rar

  9. NightBaron
    CrackMe · Started by NightBaron,

    Language : .NET Platform : Windows OS Version : All Windows (.NET Framework 4.6 or higher) Packer / Protector : The4Got10's Protector (Modded ConfuserEx) with VM and Native Shield Description : Crack (I don't care if this file is fully unpacked or not) this application and make a short tutorial for it. I want to know my app are strong or weak. Thank! Screenshot : Protected.7z if cant start this app try 2nd file Protected2nd.7z

      • Like
    • 5 replies
    • 13.5k views
  10. Teddy Rogers
    UnPackMe · Started by Teddy Rogers,

    Armadillo 4.66 http://tuts4you.com/download.php?view.1688 Ted.

    • 18 replies
    • 16.2k views
    CodeExplorer
    CodeExplorer
  11. er132
    UnPackMe (.NET) · Started by er132,

    Difficulty : you Tell me Language : c# Platform : Windows OS Version : Windows 7, Windows 8, Windows 10 Packer / Protector : agile.net Description : protecation good! Screenshot : Unpackme_version2.zip

      • Like
    • 2 replies
    • 5k views
  12. qwe00
    UnPackMe (.NET) · Started by qwe00,

    Difficulty : 5-6 Language : C# Platform : Windows x32/x64 OS Version : All Packer / Protector : ConfuserEX Custom Screenshot : Description : Unpack-me and clean the code,and tell me how you did this UnpackMe1.rar

      • Like
    • 2 replies
    • 6.1k views
  13. MindSystem
    UnPackMe (.NET) · Started by MindSystem,

    Hello, i found a special crackme obfuscated with .net reactor 4.9. I think his version of .net reactor is modded Here's the file : http://www5.zippyshare.com/v/2225980/file.html I'm working with the file since 5 days and i didn't find any solution. If someone can help me Cra'ckMe.zip

      • Like
    • 46 replies
    • 76.6k views
  14. er132
    UnPackMe (.NET) · Started by er132,

    Difficulty : you Tell me Language : c# Platform : Windows OS Version : Windows 7, Windows 8, Windows 10 Packer / Protector : Eazfuscator.NET , Modify Version ConfuserEx , dynamic protecation Description : protecation good! (Detcted Virus But Isnt Virus (For protecation))) Screenshot : Unpack_ME.exe

    • 7 replies
    • 6.3k views
  15. leqici
    CrackMe · Started by leqici,

    Language : C# Platform : Windows x64 | x86 OS Version : Windows Packer / Protector : Modded ConfuserEX, Riddle, Enigma Protector (My own config) Description A Simple CrackMe Solve the missing key. Screenshot CrackMe.exe

      • Like
      • Thanks
    • 9 replies
    • 9.1k views
  16. redblkjck
    UnPackMe · Started by redblkjck,

    Here is a simple unpackme that checks if still packed. It uses known checks from PECompact after the file is unpacked. - Injected API. This demos the use of IsPacked and WaterMark API, coded in Delphi. Solution is to unpack it and patch so it runs unpacked. This was coded for beginners learning so the level is very easy. Text references and the memo box are there to make it easier to understand what needs patched. Delphi decompilers will have no problem with this file. Only anti debug is the standard included from the packer. Try just not patching the watermark to the good cracker jmp as the watermark value could be crucial for other functions of a protected app. …

      • Like
    • 10 replies
    • 13.6k views
  17. CodeExplorer
    UnPackMe (.NET) · Started by CodeExplorer,

    Simple unpackme: Dnguard 3.68 Enterprise Easiest Dnguard unpack me. The purpose is unpacking. SimpleUnpackMe.zip

      • Like
    • 7 replies
    • 9.5k views
  18. Igor
    CrackMe · Started by Igor,

    Language : Assembly Platform : Windows x32/x64 OS Version : Windows 7, 8, 10 Packer / Protector : None Description : Found this one while cleaning my box, can you find the key? Screenshot : Rule : Tell us how you cracked it. Baby Crackme #1.exe

  19. x0rz
    CrackMe · Started by x0rz,

    Difficulty : 7/10 Language : C# Platform : Windows Packer / Protector : ConfuserEx mod + Extra antidebug and antiattach protection NetCrackMe.rar

      • Like
      • Thanks
    • 4 replies
    • 8.7k views
  20. banme
    CrackMe · Started by banme,

    Difficulty : 3 Language : C# (.NET) Platform : Windows x32/x64 OS Version : Windows 7/8/10 Packer / Protector : AntiSkid (own) Description : get the password. Screenshot : CrackMe-antiskid.exe

      • Like
    • 6 replies
    • 7.3k views
    Security_ Egypt
    Security_ Egypt
  21. bingus
    CrackMe · Started by bingus,

    Language : .NET Platform : Windows x64 OS Version : All Packer / Protector : Modified ConfuserEx Description : This is a heavily modified version of ConfuserEx, mostly custom, some copied from other obfuscators seen in the wild. I believe this to be difficult to reverse to some extent, but definitely not even close to impossible. (Also ignore old Discord ID added I changed accounts a while ago.) Also, please document how you were able to reverse it, and post the serial key. Thank you! Screenshot : Download: CrackMeO.exe

      • Like
    • 8 replies
    • 10.9k views
  22. senzuuu
    UnPackMe (.NET) · Started by senzuuu,

    Language : . NET Platform : Windows OS Version : Windows 7 Packer / Protector : ArmDot Description : Devirtulize the Armdot virtualized code (I used virtualized option + encrypted strings). Screenshot : UnpackMe.protected.exe

  23. banme
    CrackMe · Started by banme,

    Difficulty : 3 Language : C# (.NET) Platform : Windows x32/x64 OS Version : Windows 7/8/10 Packer / Protector : None [just sum anti-skid stuff] Description : get the password Screenshot : Download: CrackMe.exe

      • Like
      • Thanks
    • 5 replies
    • 6.2k views
    TobitoFatito
    TobitoFatito
  24. pankar
    UnPackMe (.NET) · Started by pankar,

    Language : .NET Platform : Windows x86 OS Version : All Packer / Protector : ConfuserEx Modded Description : Can you see the code? UnPackMe.exe

      • Like
      • Thanks
      • Haha
    • 3 replies
    • 8.3k views
  25. NightBullet
    UnPackMe (.NET) · Started by NightBullet,

    Difficulty : IDK Language : C# Platform : Windows OS Version : All Windows Packer / Protector : Night Protector 2.0 (My own protector) Description : Unpack-me and clean the code, and give a Difficulty! Screenshot : Click to download crackme!

      • Like
    • 2 replies
    • 7.6k views

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