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CrackMe

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. Bang1338
    Started by Bang1338,

    NanoButton A follow up of TinyCrackMe Challenge: - Press the button "Hi" - If correctly bypass, a MessageBox with `:3` show up. Rules: 1. Patch? Here's a deal: - No patching if you're unpacked UPX, as final result! - Allowed patching if you're not unpacked UPX, as final result! - only patch-fix the flaw like missing stdc dll, or temporary byte patch to making loader or hook 2. Spoiling? Yes! (originally in crackmes.one is "no") 3. Keygen? useless. Because the goal is bypass it! 4. Hooking? Allowed! It's not a patch! 5. Loader? Allowed! It's just a mem patch, not file patch... 6. Any these above, do not use any tool to create stuff like B…

  2. 2days
    Started by 2days,

    Bypass MessageBox Without Unpacking Bypass MessageBox without unpacking, task complete. File Information Submitter 2days Submitted 07/14/2023 Category CrackMe View File

  3. CodeExplorer
    Started by CodeExplorer,

    CheckMePlease This crackme is created with Qt v4.8.4, The goal of this crackme is to make the CheckBox checked, not to only pass the check when the Check button is pressed. There is also the options of creating an program which will change the state of CheckBox. I don't think is trivial task: I can't even enumerate windows. File Information Submitter CodeExplorer Submitted 12/20/2020 Category CrackMe View File

  4. mattheig
    Started by mattheig,

    Language : C++ Platform : Windows x86 OS Version : Windows Packer / Protector : none Description Gold: A Simple CrackMe Solve the missing key. Bronze: If u don't find key - Patch it.  Screenshot Crackke.exe

      • Like
    • 7 replies
    • 9.2k views
  5. jameswoods
    Started by jameswoods,

    Language : Golang Platform : Windows x86 OS Version : Tested on Windows 10 / Windows 7 Packer / Protector : UPX Description : This is a very simple crack me coded in Go. It is packed with UPX (unmodified) only to shrink the size of the binary. Screenshot : Scan Results : Packed: https://www.virustotal.com/gui/file/d2194772a522b19fdd08d78fb5aaf7a9d1cd856978445e163429819ef273452b/detection Unpacked: https://www.virustotal.com/gui/file/79e746354ad7bf267e9d03660c24eeed49df79d801a453c67c7416b069a3fc6d/detection CrackMe.exe

      • Like
      • Thanks
    • 7 replies
    • 16.9k views
  6. whoknows
    Started by whoknows,

    Language : C# frm4 Platform : Windows x86 OS Version : Windows 7+ Packer / Protector : Eazfuscator.NET 2019.1 w/ Virtualization + the new Homomorphic encryption Description : Find the way & explain how ggggg.rar -------- update :: 07/06/2019 I got a PM by @cawk, he successfully unpacked it + deobed..... - success 10/10 -- Eazfuscator.NET v2020.3 Language : C# frm4 Platform : Windows x86 OS Version : Windows 7+ Packer / Protector : Eazfuscator.NET v2020.3 w/ Virtualization https://www36.zippyshare.com/v/L51Y2Jfr/file.html upload not working so posted here till fixed!

  7. RDGMax
    Started by RDGMax,

    RDG EnableMe 2022 RDG Enable Me 2022 vb6 password:crackme Difficulty 3 / 10 Compiler: Microsoft Visual Basic v6.0 Anti Tracing:No Anti Debugger: No Anti Newby: Si Obfuscated: Si (RDG vb6 Obfuscator) Anti Virtual Machine: No Anti SandBox: No Harmful Payload: NO! Internet Validation: No CRC on Disk: No CRC en Memory: No Admin Required: No Support Windows XP to Windows 11 Goal: Enable button and get Congratulations Message rdgmax@gmail.com rdgmax@rdgsoft.net www.rdgsoft.net File Information Submitter RDGMax Submitted 09/04/2022 Category …

    CodeExplorer
  8. 0x777h
    Started by 0x777h,

    Users Desktop CrackMe #2 This is the beta version of vxlang ! The purpose of this is to find an encrypted string. Thank you. File Information Submitter 0x777h Submitted 12/02/2022 Category CrackMe View File

  9. 0x777h
    Started by 0x777h,

    Users Desktop CrackMe #1 This is a demo of the packer. Demo is to find a password. (used simple anti-debugging and code-virtualization.) Thank you File Information Submitter 0x777h Submitted 10/25/2022 Category CrackMe View File

  10. RDGMax
    Started by RDGMax,

    RDG Crackme 2022 Hello my friends. here a new crackme! RDG Crackme 2022 vb6 Level 7 / 10 Compiled: Microsoft Visual Basic v6.0 Anti Tracing: Yes Anti Debugger: Yes (Of Course) Anti Newby: yes Obfuscated: Yes (RDG vb6 Obfuscator) Anti Virtual Machine: Yes Anti SandBox: Yes Malicious payload: NO! Internet Validation: Yes CRC On Disk: Yes CRC On Memory: NO Admin Required: Yes Support Windows XP to Windows 11 Goal: Get Activation Code x 2 rdgmax@gmail.com rdgmax@rdgsoft.net www.rdgsoft.net http://rdgsoft.net/downloads/Crackme_2022/RDG_Crackme_2022.rar thanks a lot! File Information …

    • 0 replies
    • 5.8k views
  11. Shade Of Vengeance
    Started by Shade Of Vengeance,

    [ CyberLock ] License System CrackMe Challenge Hi, This is a simple crack me challenge protected by my own crafted packer, I don't know how hard is to break it but I assure you it's a good challenge. Challenges Pro Mode : Break the license checking system and find the key, activate the program, It will give you a quote of a famous philosopher, post a screenshot from it here, Share your solution if possible. God Mode : Crack the license checking system and patch it to accept any key as a valid key, Share the cracked file. Share your solution if possible. If you need hint and more details about protector visit Authors Solution tab. …

    Shade Of Vengeance
  12. SuperJackAbcd
    Started by SuperJackAbcd,

    Simple C++/CLI Crackme x64bit Your goal is to crack the file and make a tutorial and/ or write instructions about the steps done by you. What is C++/CLI? C++/CLI is C++ support .NET framework to make managed application run on .NET framework. https://en.wikipedia.org/wiki/C%2B%2B/CLI Feel free to post your solutions. File Information Submitter SuperJackAbcd Submitted 01/26/2022 Category CrackMe View File

  13. m0rfl1ng
    Started by m0rfl1ng,

    My first easy CrackMe Hi guys , i write a very simple crack me , i really do not know how i should secure my code just write a very basic one . anyway i know it's very easy but still wanted to know other peoples opinion. if it did not run please let me know , i did not use any packer , or protector , just my own code , and it's written in C++ with visual studio 2019 on windows 10. Submitter: m0rfl1ng Category: CrackMe Virus Total Scan File Information Submitter m0rfl1ng Submitted 11/28/2020 Category CrackMe View File

  14. Twaoperder
    Started by Twaoperder,

    Custom Protector CrackMe It is written in FASM, anti-debugging methods are used. You need to get the keys that were used to encrypt the hash being checked (Enter the necessary values in the input field to get "Success", and throw these values here) File Information Submitter Twaoperder Submitted 08/21/2021 Category CrackMe View File

  15. svenskithesource
    Started by svenskithesource,

    Python Patchme (Custom VM) (UPDATED v1.2) Hello, Since the use of vm's is quite popular in .net obfuscation I thought it would be interesting to make one in Python. Hereby I release my first crackme using my VM. It's a very simple VM so it shouldn't be that hard to reverse with the right knowledge. This is purely experimental to see if it would be useful somehow. I also used my own protector that adds cflow, so expect to see a lot of jumps. Goal: Patch it (ultimately devirtualize it, but that's not necessary) EDIT: This is now updated. I tried to make sure it isn't possible to patch with 1 or 2 jumps. File Information …

      • Like
      • Thanks
    • 5 replies
    • 5.5k views
    Extreme Coders
  16. Nqndi
    Started by Nqndi,

    Titanium (Python Obfuscator) This is my first crackme, so I may have screwed up some things, but overall it should be a fun challenge. The file is protected with my own packer/obfuscator, Titanium, and compiled with pyinstaller. Read the readme before reversing. File Information Submitter Nqndi Submitted 09/07/2021 Category CrackMe View File

  17. arsh3
    Started by arsh3,

    GalaxyProtector Provide a key and send a cleaned executable. File Information Submitter arsh3 Submitted 07/13/2021 Category CrackMe View File

  18. BlackHat
    Started by BlackHat,

    Xamarin C# CrackMe Platform / Language : Xamarin C# Protection : None VirusTotal : 1/66 https://www.virustotal.com/gui/file/13d14a2db54658099291e80ab57650770ee4f8f4978f18e1c1e8888600807429 Your goal is to Crack the File and make a Tutorial or Write Instructions about the Steps done by you. What is Xamarin? Xamarin is an open-source platform for building modern and performant applications for iOS, Android, and Windows with .NET. Xamarin is an abstraction layer that manages communication of shared code with underlying platform code. Xamarin runs in a managed environment that provides conveniences such as memory allocation and garbage collec…

      • Like
    • 4 replies
    • 6.5k views
  19. Nope
    Started by Nope,

    VMProtect 3.4 & Custom OB Vmprotect 3.4 & Custom OB Vmprotect anti debug and VM protect is disabled Find the way & explain how File Information Submitter Nope Submitted 07/15/2021 Category CrackMe View File

  20. RDGMax
    Started by RDGMax,

    Difficulty : 5/10Language : VB6 [Inmortal] Platform : Windows 32/64OS Version : All windowsPacker / Protector : None Description : 1) Try to get a Valid serial for your ID 2) Patch :/ (for good work Message) Anti Debug: 5/10 Anti Decompile: 3/10 Anti Tracing: 5/10 Anti Dump: 2/10 Anti Dump: 2/10 Extra: 8/10 Screenshot : Thanks RDG_Crackme_vb6_v0.1_2016.rar

    • 9 replies
    • 9.4k views
  21. Asentrix
    Started by Asentrix,

    Fu*ckuscator v1.1 Brand new obfuscator on the market. I've already completed this crackme but wanted to see what you guys come up with. Good luck! File Information Submitter Asentrix Submitted 12/28/2020 Category CrackMe View File

      • Like
    • 5 replies
    • 13.5k views
    ProjectTrauma
  22. CodeOfDark
    Started by CodeOfDark,

    Difficulty : 2-3 Language : .NET Platform : Windows OS Version : Windows7+ Packer / Protector : PandaObfuscator (Modded Confuser) with Custom VM Description : Just basic UnpackMe, want to see if my obfuscator good/bad Screenshot : GetMe.7z

      • Like
      • Haha
    • 8 replies
    • 11k views
  23. lopeg
    Started by lopeg,

    Pyarmor CrackMe Try to find the key. Hint, the key contains: Specials Caps Non caps Numbers Enter the key and you will see the results. Good luck. File Information Submitter lopeg Submitted 09/12/2020 Category CrackMe View File

      • Like
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    • 4 replies
    • 15k views
  24. LoLLo90
    Started by LoLLo90,

    Tricky Goals: Bronze - Patch the crackme to show the correct message Silver - Bronze + explain what is happening I don't know why Windows Defender is giving a false positive. My past here should prove I am not here to harm anyone. I only used Appfuscator for renaming. I checked the file and I did not see any other obfuscation or anything annoying automatically inserted by Appfuscator (like outline method calls). Please extract all the files in a folder to make the exe work properly. Let's fight! File Information Submitter LoLLo90 Submitted 02/13/2021 Category …

    • 0 replies
    • 6.2k views
  25. LoLLo90
    Started by LoLLo90,

    ClumsyVM This is my clumsy virtual machine 😃 Goals: Bronze - Patch the crackme to show the correct message Silver - Bronze + explain how the virtualized code works Gold - Silver + write a totally different virtualized code to pass the check File Information Submitter LoLLo90 Submitted 01/31/2021 Category CrackMe View File

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