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Tuts 4 You

20 files

  1. Example CrackMe - Debug Blocker x64

    This is an example for submitting a CrackMe in the Downloads section of the site.
    You can download the file and run Debug Blocker x64. Nothing too exciting will happen!
    The challenge here would be to patch the debug-blocker function so that it does not spawn a second process.

    456 downloads

    0 comments

    Updated

  2. 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.

    68 downloads

    0 comments

    Updated

  3. 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.
     

    108 downloads

    0 comments

    Updated

  4. 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 collection.

     

    277 downloads

    0 comments

    Updated

  5. 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.

    265 downloads

    0 comments

    Submitted

  6. 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)

    215 downloads

    0 comments

    Updated

  7. VMProtect 3.4 & Custom OB

    Vmprotect 3.4 & Custom OB
    Vmprotect anti debug and VM protect is disabled
    Find the way & explain how 

    337 downloads

    0 comments

    Updated

  8. GalaxyProtector

    Provide a key and send a cleaned executable.

    170 downloads

    0 comments

    Updated

  9. Hard CrackMe (LeetFuscator)

    Language: C#(.Net)
    Goal: to get the key of obfuscated file
    Key on the screenshot is wrong, you have to crack this CrackMe and send key with tutorial on how did you do that.

    255 downloads

    0 comments

    Updated

  10. 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!

    127 downloads

    0 comments

    Updated

  11. 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

    166 downloads

    0 comments

    Submitted

  12. 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!

    248 downloads

    0 comments

    Updated

  13. 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.
     

    173 downloads

    0 comments

    Updated

  14. godpow#7468 CrackMe

    This has an anti-debugger which will constantly look for strings that'll contain the name of debuggers such as De4dot and more..

    183 downloads

    0 comments

    Updated

  15. 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

    281 downloads

    0 comments

    Updated

  16. 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.

    187 downloads

    0 comments

    Updated

  17. A Crackme with Math Problem

    Just run it. It is an interesting math problem. No vm, no obfuscation. You can debug it with dnSpy even Visual Studio. You should use public method inside this crackme to generate a valid hex string and make program output correct string.

    135 downloads

    0 comments

    Submitted

  18. Poetic AutoIt (string/integer obfuscation)

    This is a simple CrackMe consisting of an input. The correct input is two stanzas of a particular poem and will reveal a label of the poem title and author upon success. Otherwise, "Try again..." will be displayed.
    If I'm allowed to be picky, I'm primarily interested in scripted efforts to RegEx analyze strings/integers. Very little effort (as in none) went into hiding the correct string. The script was merely passed-through a self-made obfuscator.
    Full disclosure:  It contains rudimentary debugger and compilation checks which, if failed, falls into a while loop with a one second sleep (harmless). But, as stated above, this isn't the focus of what I'm after.
     
     

    268 downloads

    0 comments

    Updated

  19. CrackMe 4

    This file is protected by my custom C++ virtualizer and C# protector.
    The correct solution is to find the correct key and unpacked target.
    Enjoy it!

    240 downloads

    0 comments

    Updated

  20. CrackMeBoi

    I made a custom obfuscator and I haven't made any progress cracking it so please crack the file with my custom .NET obfuscator.
    Do not use OllyDbg or any software of that kind, you can use Mega Dumper and other tools similar.

    213 downloads

    0 comments

    Updated


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