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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 : 8/10 Language : C++ & C# (VS2008, .NET framework 2.0) OS Version : Maybe not working on Windows 7 Protection : Custom ConfuserEx, Crypto, VMprotect Description : Hi I am back, please try this challenge... Get key (33 chars) and user name, use all possible methods. Happy Reversing! Download : https://mega.nz/#!QqwwDICb!rI00waeJ7VFTDLhlnItuOhiZxd7eBoCXqN6KLDQJE_c (15Mb) Screenshot : CrackMe^v11_C.zip

      • Thanks
      • Like
    • 3 replies
    • 6.2k views
  2. EinMann
    CrackMe · Started by EinMann,

    Difficulty : 3/10 Language : C# Platform : Windows OS Version : Windows 7,8,10 Packer / Protector : Confuserex 0.3 and some custom stuff Description : lit crackme Screenshot : Download : CrackMe.exe

      • Like
    • 4 replies
    • 7.7k views
  3. r00t0
    KeygenMe · Started by r00t0,

    Difficulty: 4 Language: C/C++ Platform: Windows x32/x64 OS Version: Windows XP+ Packer / Protector : UPX 3.91 Description : Generate key and post your result on forum. Screenshot : keygenme.zip

      • Thanks
      • Haha
      • Like
    • 3 replies
    • 8.9k views
  4. Modify
    UnPackMe (.NET) · Started by Modify,

    Difficulty : 3+ Language : .NET Platform : Windows OS Version : Windows Packer / Protector : Enigma + Multiple Description : Provide unpack me + key Screenshot : Target : DotNet.7z

    • 2 replies
    • 8.8k views
  5. jemmg
    UnPackMe (.NET) · Started by jemmg,

    Difficulty : 2-3 Language : C# Platform : Windows OS Version : All Packer / Protector : Custom protector Description : You need to unpack the file and attach the unpacked file and password to your message Screenshot : Virustotal: https://www.virustotal.com/#/file/4ec34e564ff07f6fd57005b71d8c9eca4fb18858f8a7c7352b62edaa427f9bdd/detection UnpackMe.rar

      • Haha
      • Like
    • 7 replies
    • 7.5k views
  6. CodeEnding
    UnPackMe (.NET) · Started by CodeEnding,

    Virus Total https://www.virustotal.com/th/file/309fc2a1e4916f653eb1aa32a67f77132610907e76f340f7172aaec1c8fb2640/analysis/1445761054/ Unpackme.rar

      • Like
    • 7 replies
    • 11.7k views
  7. flash_0
    UnPackMe · Started by flash_0,

    Difficulty : 7-8 Language : C++ Platform : Windows x86 OS Version : XP and above Packer / Protector : VMProtect 3.0.9 Description : Not default VMP protection, just testing some thing. The main goal is - unpack sample, not key. Screenshot : unpack_me.rar

    • 0 replies
    • 7.8k views
  8. lostit

    Difficulty : 6 Language : C/C++ Platform : Windows 32bit OS Version : Windows XP+ (tested on win xp 32bit vm with sp3 and win 10 x64) Packer / Protector : None Description : Pretty straight forward keygenme, input a name, and a key and see if they're valid. The goal is to write a keygen for it without patching the file. Hopefully when thinking about this one you don't forget the code you can't see. But if that isn't going well you can always try brute force on it. Again there is 1 goal, write a keygen for it without patching it. Screenshot : Download : KeygenMe_01.zip

      • Like
    • 9 replies
    • 9.9k views
  9. conquerorstone
    UnPackMe (.NET) · Started by conquerorstone,

    Difficulty : 4-5 Language : .NET Visual Basic 2010 Platform : Windows OS Version : All Packer / Protector : THEMİDA latest version and default settings Description : Fully unpack the program and get the code I have hidden inside (Enter it in textbox and check it) Please provided details/a tutorial on how you managed to unpack it. Screenshot : Unpackme_fix.exe

      • Like
    • 4 replies
    • 8.3k views
  10. Tesla
    CrackMe · Started by Tesla,

    Difficulty : 10Language : VB.NETPlatform : Windows x32 / x64OS Version : All net framework 4.5Layer of Protection : 4 Description: Try to found 2 key Screen : TeslaProtectedAppCrackMe.exe

    • 6 replies
    • 5.9k views
  11. 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
    • 6k views
  12. 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
    • 6.1k views
  13. 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
    • 5.9k views
  14. 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
    • 5.1k views
  15. 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

  16. 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
    • 5.2k views
    man of the war
    man of the war
  17. 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
    • 6k views
    NightBullet
    NightBullet
  18. 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
    • 9.3k views
  19. 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
    • 5.3k views
  20. 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
    • 8.2k views
  21. 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
    • 18.2k views
  22. 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
    • 5.4k views
    MatrixReloaded
    MatrixReloaded
  23. 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
    • 25.1k views
  24. 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
    • 5.5k views
  25. 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
    • 7.5k views

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