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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. 0X7C9
    CrackMe · Started by 0X7C9,

    Difficulty : 9 Language : NET 2.0(C#) / C++ (2008-2010) Platform : Windows x32/x64 OS Version : Windows 7, 8, 10 (All windows with .NET Framework 2) Packer / Protector : Mixed protections (Agile.Net(Without virtualization), VMProtect (Max) , Themida (Max) Description : Hi. I created maybe lastest CrackMe. Now its version V7. I used maximum possible protection. In this case i removed anoying antidebugger Rules is: Unpack Themida & VMProtect , Deob. Agile. And finaly get the license key Happy reversing. Screenshot : CrackMeV7_[!Eddy420 2018].zip

      • Like
    • 3 replies
    • 5.7k views
  2. Tesla
    CrackMe · Started by Tesla,

    Difficulty : I think it's 5 or 6 not sure don't blame me please. Language : C# Platform : DOS OS Version : Windows Packer / Protector : Priv8 method used Description : 1.) Unpack 2.) Crack 3.) Send me the file Screenshot : CrackMe1 (2).exe

      • Haha
    • 5 replies
    • 5.9k views
  3. 0X7C9
    CrackMe · Started by 0X7C9,

    Difficulty : 8 Language : NET 2.0(C#) / C++ (2008) Platform : Windows x32/x64 OS Version : Windows 7,8,10 (All windows with .NET Framework 2) (if not work you need some VCRedist runtime´s ...) Packer / Protector : ConfuserFX , Skater 2018 , Mpress , VM Protect, Themida , NSpack Description : I've done quite a lot of work. Do not be surprised. The rules are: Obtain the license data. They are not encrypted! I hope you can run it. And then write down, how you succeeded. Screenshot : CrackMeV4.zip

      • Haha
      • Like
    • 7 replies
    • 5.7k views
  4. NeoNCoding
    CrackMe · Started by NeoNCoding,

    Difficulty : 9.5 Language : C#, C++ Platform : Windows x32/x64 OS Version : Windows 7,8,8.1,10 Packer / Protector : NeoNFuscator (My obfuscator) Description : Get the password.. Screenshot : DOWNLOAD: CrackMe.exe

      • Thanks
      • Like
    • 4 replies
    • 4.9k views
  5. Gordon
    CrackMe · Started by Gordon,

    Difficulty : 10 Language : C++ Platform : Windows OS Version : WinAll Packer / Protector : VmProtect 3.0.9 Max settings Description : Provide correct number or cracked file. if you manage to crack please leave a tutorial Screenshot: CrackmeVMP.vmp.exe

  6. m0f3x
    CrackMe · Started by m0f3x,

    Difficulty : 5+ Language : .Net Platform : Windows x64 & Windows x86 OS Version : All Packer / Protector : Appfuscator Description : Program is protected by "Appfuscator" . Screenshot : App_1.rar

    • 5 replies
    • 5.1k views
    man of the war
    man of the war
  7. NightBullet
    UnPackMe (.NET) · Started by NightBullet,

    Difficulty : 3.2/10 Language : C# Platform : Windows OS Version : All Packer / Protector : My New Protector (NightProtectorLite 1.0) Description : PRO: Unpack the file, get strings, clean file, (not need keep working) and make a Short Tut for it. NewBie: Get Passwd Screenshot : Protected.exe

      • Thanks
      • Like
      • Haha
    • 4 replies
    • 5.8k views
    NightBullet
    NightBullet
  8. gholam.illidan
    UnPackMe (.NET) · Started by gholam.illidan,

    Difficulty : 9/10 Language : C# Platform : Windows OS Version : All (Requires .net 4.0) Packer / Protector : Confuser Deeply Modified by Myself Description : Unpack the file, get the string code, clean resources and keep the application working. and make a Short Tut for it. Screenshot : UnpackMe.exe

      • Like
    • 7 replies
    • 9.2k views
  9. 0X7C9
    CrackMe · Started by 0X7C9,

    Difficulty : 3 Language : NET 2.0(C#) Platform : Windows x32/x64 OS Version : Windows 7,8,10 (All windows with .NET Framework 2) Packer / Protector : Smart Assembly, Agile , Mpress + Custom protection (RC4,AES,RSA+HWKey) I'm back with the new CrackMe. This time. You may not delete a single dll .Do not worry about slowing down your computer. I'm just looking at the processes;) Get license key See Ya! Download : https://mega.nz/#!9nxS0RgJ!JeH6YwOr5BtniYzpgAuNqFhLgHQF-hbWmpzU3fgI01Q CrackMeV6_Fx[!Eddy420CZ].zip

      • Like
      • Thanks
    • 2 replies
    • 5.2k views
  10. Gyrodrill
    UnPackMe (.NET) · Started by Gyrodrill,

    Difficulty : 4/10 Language : C# Platform : Windows x32/x64 OS Version : 8+ (.Net 4.5 required) Packer / Protector : ConfuserEx Mod Description : Unpack for source code or give code snippet to verify password. Screenshot : UnpackMe.exe

    • 3 replies
    • 8.1k views
  11. Jasi2169
    CrackMe · Started by Jasi2169,

    Difficulty : 0 - 5 Language : Android Studio Platform : Android OS Version : JellyBean+ Packer / Protector : None Description : Here are couple of crackmes and keygenmes i coded for android any beginner or want to test can test their hand in :- 1. App :- Android_Crackme1_TeamURET , Difficulty :- 0/10 2. App :- Android_Crackme2_TeamURET , Difficulty :- 1/10 3. App :- AndroidKeygenMe_1-URET , Difficulty :- 2/10 4. App :- URET Android Official KeygenMe 01 , Difficulty :- 5/10 (This Is Official KeygemMe Only Defeated By One Guy Yet) Enjoy.... Files are attached URET_Android_crackmes_Keygenmes.rar

      • Like
    • 17 replies
    • 17.9k views
  12. MatrixReloaded
    CrackMe · Started by MatrixReloaded,

    Difficulty : 7 Language : .NET / Delphi / C++ Platform : Windows x32/x64 OS Version : Windows 10 , 7 , 8 Packer / Protector : SuperMax Engine ™ BETA + [ BoxedAppPacker ] Description : Hey tuts4you Community ! This is a .net project that I made on my own protector SuperMax protector/packer. I don't know how much it can be difficult , But I set it on 7 :- D See Missions. Screenshot : *Copyright Materials [ GUI ] : https://www.nuget.org/packages/WPFThemes.DarkBlend/ Rule 01 : Tell us how you cracked it. Missions: 01 > first , earn the Activation Code and write it here ... …

      • Like
    • 2 replies
    • 5.2k views
    MatrixReloaded
    MatrixReloaded
  13. JustinOOO
    UnPackMe (.NET) · Started by JustinOOO,

    Difficulty : 5 (?) Language : C# (.NET) Platform : Windows OS Version : Windows 7+ Packer / Protector : EazFuscator v2018.1 Description : When pressing the "go" button some unknown function takes text from the input box and converts it to something to put in the output box. Your goal is to unpack the program and provide me with the source code to that function. Screenshot : unpack-me.exe

      • Like
    • 4 replies
    • 24.9k views
  14. EinMann
    CrackMe · Started by EinMann,

    Difficulty : 1/10 Language : C# Platform : Windows OS Version : Windows 7,8,10 Packer / Protector : Guardian.NET Lowest settings Description : lit crackme. Only protected with constant mutation of Guardian.Net (very low settings) Screenshot : Download : CrackMe.exe

      • Like
    • 3 replies
    • 5.3k views
  15. NightBullet
    UnPackMe (.NET) · Started by NightBullet,

    Difficulty: 3.0/10 (Very Izi) Language: .Net/C# Platform: Windows OS Version: All Packer/Protector: ConfuserEX Modded Description: You have to give unpack and make the source download available! Screenshot: UnpackMe - Night Protector 2.0.exe

    • 4 replies
    • 7.3k views
  16. 0X7C9
    CrackMe · Started by 0X7C9,

    Difficulty : 4 (Maybe 5) Language : NET 2.0 Platform : Windows x32/x64 OS Version : Windows 7,8,10 (All windows with .NET Framework 2) Packer / Protector : Crypto obfuscator (only strings, names and all types to non-printable) > ConfuserFx (Anti ildasm, anti tamper, anti dump, anti debug) Description: Greetings to the Tuts4You community. I wrote a CrackMe in C #. I used two protection programs on it. I made it more difficult because the previous one was easy. In this case, the password can be retrieved and not encrypted. Get the long license key and post. Write a simple tutorial how you did it. But you can not modify the program to display the M…

      • Sad
    • 5 replies
    • 5.1k views
  17. skypeaful

    Hello members of Tuts4You I write serialme which packed by Themida + AppFuscator It's seem easy for talent. Have a try. (The purpose is find correct serial, patching isn't allowed.) If you got it, please describe how can you do it, thanks... Serialme_test.rar

  18. r00t0
    CrackMe · Started by r00t0,

    Difficulty : 4Language : C++Platform : Windows x86/x64OS Version : Windows 7 or higherPacker / Protector : Petite 2.4 and protector written by me Description : Crack program to written correct password when is bad written. Screenshot : crackme.zip

      • Like
    • 3 replies
    • 5.3k views
    randomusername
    randomusername
  19. 0X7C9
    CrackMe · Started by 0X7C9,

    Difficulty : 2 Language : NET 4.0 Platform : Windows x32/x64 OS Version : Windows 7,8,10 (All windows with .NET Framework 4) Packer / Protector : None / Not obfuscated! Description : Hello community I created some reversing challenge for you. Lets check it! Can you get correct password from my application? Please if you done this. Post screenshot of program after you sumbmited password and password. !Eddy420.CZ Download: CrackMeForTuts4You.zip

    • 4 replies
    • 6.3k views
  20. MarlboroLight
    CrackMe · Started by MarlboroLight,

    Difficulty : 9 Language : C# & Assembler Platform : Windows , PE32 OS Version : Windows 7 - 10 Packer / Protector : Sui-Cide Protector BETA ( own protector ) Description : Hey , I developed a .net protector against reverse engineering. Decrypt the password in the Edit-Box and share it here . Download : HACKME.rar Screenshot : Solution : Tell your tools , and tell how you did it. Arigato!!!

      • Like
    • 6 replies
    • 5.9k views
  21. barotyson
    CrackMe · Started by barotyson,

    Difficulty : 5 Language : Java Platform : Windows x64 - min jar 1.6.0 OS Version : All Packer / Protector : Proguard Description : Find the right key Screenshot : crackme.exe

      • Haha
    • 2 replies
    • 5.1k views
  22. 32x64
    CrackMe · Started by 32x64,

    Difficulty : 2 Language : C# Platform : Windows OS Version : All Packer / Protector : No, My own method Description: License audit Screenshot(s): Download Crackme_32x64 (1) .rar Good luck...

      • Thanks
      • Like
    • 5 replies
    • 7.4k views
  23. 99ekeli
    CrackMe · Started by 99ekeli,

    Difficulty : 2 Language : C# Platform : Windows x64 OS Version : Windows 7 and greater Packer / Protector : My own private confuser + Eazfuscator Description : Try get password.. !!! Times run !!! 17. 11. 2017 22:21:49 ends Eazfuscator license of application Screenshot : CrackMe.exe

      • Haha
      • Like
    • 8 replies
    • 7.7k views
  24. MatrixReloaded
    CrackMe · Started by MatrixReloaded,

    Difficulty : 8 Language : .NET Platform : Windows x32/x64 OS Version : Windows 10 , 7 , 8 Packer / Protector : Cipher Crypt Custom Obfuscator/Packer Description : Hey guys , This is a .net exe crypted with a "new technology" as they say , it's really hard to decompile and get the source. Screenshot : Download from tuts4you: crackme.rar Missions: 1. extract password string 2. there is a crackthis_cs.cs file with a ... //////////////// THIS IS THE CRACK AREA ////////// //// PUT THIS CODE ON FORUM ////// .... ? Part , Share that code. Adios Amigos

      • Like
    • 5 replies
    • 7.1k views
  25. NightBullet
    UnPackMe (.NET) · Started by NightBullet,

    Difficulty: I do not know(Hard) Language: .Net Platform: Windows OS Version: All Packer/Protector: Night Protector [version 4.0] (cfEx Modded) FILE SIZE: 1.2 MB Description: Crack or unpack - you choose. IMPORTANT: in case you stop somewhere let me know! PLEASE Screenshot: Crack-me.exe

    • 5 replies
    • 7.5k views

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