Jump to content
Tuts 4 You

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...

336 topics in this forum

  1. Teddy Rogers

    Example CrackMe - Debug Blocker x64

    by Teddy Rogers
    • 3 replies
    • 10k views

    View File 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. Submitter Teddy Rogers Submitted 02/23/2020 Category CrackMe

    ra1n
    Last reply by ra1n,
    • Like
  2. Sh4DoVV

    Nuitka 2.1.5 (Python 3.11)

    by Sh4DoVV

    View File Nuitka 2.1.5 (Python 3.11) Hi Nuitka compiled python 3.11 file Correct password doesn't important Just patching Thanks Submitter Sh4DoVV Submitted 04/18/2024 Category CrackMe  

    Sh4DoVV
    Last reply by Sh4DoVV,
  3. shellwolf

    [crackme]A Crackme with antidebug

    by shellwolf

    enjoy it. CrackMe01.rar

    MabunbuNgube
    Last reply by MabunbuNgube,
    • Haha
    • Like
  4. SunBeam

    [InlineMe] VMProtect IsValidImageCRC() 1 2 3

    by SunBeam

    [ Solutions so far: JohnWho, What ] (read whole thread) Hello folks. Decided I would post this here as well, as we're lacking some exercise on these kinds of targets. Purpose: open up the test target, click OK on the message box. Use any tool you want to alter a byte in application's active memory (e.g.: "MZ" string at ImageBase) and another message will appear. Goal: make the 'bad' message never pop-up, but not through patching the all-too-clear JUMP. Inline VMProtect's CRC check method so the CALL always returns 1. Again, not through MOV EAX,1|RETN (P.S.: imagine you don't know where this function is in a well-obfuscated target). …

    Sean Park - Lovejoy
    Last reply by Sean Park - Lovejoy,
    • Like
  5. 0verp0wer

    Python Crackme (Custom VM)

    by 0verp0wer

    View File Python Crackme (Custom VM) Hello, this is a crackme made in python by a friends (wrc3667 on discord) Difficulty: [95 / 100] The purpose of this challenge is to find the correct key (note: the key should be in hexadecimal, otherwise the program will istantly close) Features: - Constant encryption - Name encryption - Opcode shuffling - Bytecode encryption - Stack encryption - Bytecode instruction mangling - Guillotine Interpreter - Complete namespace virtualization Submitter 0verp0wer Submitted …

    0verp0wer
    Last reply by 0verp0wer,
  6. boot

    VMProtectDDK v3.84 x64 No.2 2024

    by boot

    View File VMProtectDDK v3.84 x64 No.2 2024 If you want to try this challenge, please read the following text descriptions: 1. Please try to debug the kernel driver in the virtual machine instead of your real machine to avoid causing a blue screen on the physical machine a. Why blue screen? For things like Ring0.sys, as I mentioned earlier b. Copy the Tuts4you.ini file to the C:\Windows\ directory of the virtual machine 2. I have added a test signature to the driver, so to load this driver, you need to enable Windows test mode a. Press and hold the "WIN+R" key to launch the CMD console as an administrator, enter b…

    boot
    Last reply by boot,
    • Like
  7. boot

    PatchMe No.1 2024 (x86 32-Bit)

    by boot

    View File PatchMe No.1 2024 (x86 32-Bit) PatchMe.exe MD5: DD4E072F8B5CA241927EAA63DED47383 SHA1: 08F4699C3A84F5E40343CE9A9AD05046EE15D6DD CRC32: 9A4C0721 PatchMe No.1 2024 Please check the ReadMe.mp4 in the zip package, you'll understand what I mean... If you have solved this challenge, please make tutorial(s)... I will mark the answers with tutorials as a solution. About This Challenge... - Author: boot - Date: February 10, 2024 - Difficulty: ★★☆☆☆ - Architecture: x86 32-Bit - From: Tuts4you - Platform: >=Win95 Submitter boot …

    HostageOfCode
    Last reply by HostageOfCode,
    • Thanks
    • Like
  8. Nisy

    CrackMe with Anti Patch

    by Nisy

    View File CrackMe with Anti Patch The program uses VMP protection, and calls the relevant checksum SDK, even if the violent crack may also be slightly more complex, here provides a baymax patch tool to achieve the crack program, interested friends can read the pdf tutorial. The function of the program to determine whether the input is correct or not does not use the SDK for protection, and verify the error dialog box strings are searchable, but these do not mean that it is easy to crack, because the code also calls the memory checksum, determine whether the debugging and other SDK interfaces. So how to realize the cracking of this crac…

    Sean Park - Lovejoy
    Last reply by Sean Park - Lovejoy,
    • Like
  9. InvizCustos

    CrackMe [.NET + Native]

    by InvizCustos

    View File CrackMe [.NET + Native] A little "CrackMe" challenge (.NET + Native). Need to crack the application so that it does not require a license for its operation. P. S. Application requires .NET 6 to run Submitter InvizCustos Submitted 01/28/2024 Category CrackMe  

    InvizCustos
    Last reply by InvizCustos,
  10. 2days

    WinLicense v3.1.3.0 x64 (Bypass Without Unpacking)

    by 2days

    View File WinLicense v3.1.3.0 x64 (Bypass Without Unpacking) License User Details User Name=2days Tuts4you Company=The Terminator Hardware ID=6FF7-E7EF-5988-20FE-144E-865D-2D30-A73B Custom Data=<custom_start>Skynet, a global network of artificial intelligence machines.<custom_end> License Restrictions Days Expiration=365 Date Expiration=2029/12/12 Executions=999 Runtime execution=999 Global Time=999 Install Before Date=2029/01/01 Miscellaneous Unicode License=yes Generated License (FILE KEY) License Format=Binary License Data= <license_start> ghO1ud4wf14YNU87wUptZ1J…

    Sean Park - Lovejoy
    Last reply by Sean Park - Lovejoy,
    • Haha
    • Thanks
    • Like
  11. Bang1338

    TinyCrackMe - WinLicense 3.1.7.0 Edition

    by Bang1338

    View File TinyCrackMe - WinLicense 3.1.7.0 Edition === SPOILER INSIDE SOURCE CODE TAB === A WinLicense'd version of TinyCrackMe Rules: 1. Unpack first 2. Do whatever you want after unpack, as long as ":3" MessageBox appear :3 Just want to see how long ppl will crack the latest version of WinLicense... WL Protection: - Anti-Debugger - Advanced API-Warping - Compress And Encrypt (all 3 options) - Full Encrypt Strings - Detect File/Registry Monitor - Entry Point Virt - Anti File Patching - Perform Protection Check - VMware/Virtual PC Allowed WLVM: - SHARK32 (Black, Red) - PUMA32 (Black, Red) - EAG…

    InvizCustos
    Last reply by InvizCustos,
    • Thanks
    • Like
  12. Bang1338

    NanoButton

    by Bang1338

    View File 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 …

    Bang1338
    Last reply by Bang1338,
    • Thanks
    • Like
  13. 2days

    Bypass MessageBox Without Unpacking

    by 2days

    View File Bypass MessageBox Without Unpacking Bypass MessageBox without unpacking, task complete. Submitter 2days Submitted 07/15/2023 Category CrackMe  

    Noob boy
    Last reply by Noob boy,
    • Haha
    • Thanks
    • Like
  14. CodeExplorer

    CheckMePlease

    by CodeExplorer

    View File 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. Submitter CodeExplorer Submitted 12/20/2020 Category CrackMe  

    CodeExplorer
    Last reply by CodeExplorer,
    • Like
  15. mattheig

    Simple CrackMe #2 - Find The Missing Key

    by mattheig
    • 7 replies
    • 7.4k views

    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

    greyrabbit
    Last reply by greyrabbit,
    • Like
  16. jameswoods

    A Simple Go CrackMe

    by jameswoods
    • 7 replies
    • 8.7k views

    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

    REFAIM
    Last reply by REFAIM,
    • Thanks
    • Like
  17. whoknows

    Eazfuscator.NET 2020.3

    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!

    jackyjask
    Last reply by jackyjask,
    • Thanks
    • Like
  18. RDGMax

    RDG EnableMe 2022

    by RDGMax

    View File 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 Submitter RDGMax Submitt…

    CodeExplorer
    Last reply by CodeExplorer,
    • Thanks
    • Like
  19. 0x777h

    Users Desktop CrackMe #2

    by 0x777h

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

    0x777h
    Last reply by 0x777h,
  20. 0x777h

    Users Desktop CrackMe #1

    by 0x777h

    View File 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 Submitter 0x777h Submitted 10/25/2022 Category CrackMe  

    0x777h
    Last reply by 0x777h,
    • Confused
    • Haha
    • Thanks
    • Like
  21. RDGMax

    RDG Crackme 2022

    by RDGMax
    • 0 replies
    • 2.8k views

    View File 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! …

    RDGMax
    Last reply by RDGMax,
  22. Shade Of Vengeance

    [ CyberLock ] License System CrackMe Challenge

    by Shade Of Vengeance

    View File [ 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 v…

    Shade Of Vengeance
    Last reply by Shade Of Vengeance,
    • Like
  23. SuperJackAbcd

    Simple C++/CLI Crackme x64bit

    by SuperJackAbcd

    View File 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. Submitter SuperJackAbcd Submitted 01/26/2022 Category CrackMe  

    db123
    Last reply by db123,
  24. m0rfl1ng

    My first easy CrackMe

    by m0rfl1ng

    View File 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 Submitter m0rfl1ng Submitted 11/28/2020 Category …

    db123
    Last reply by db123,
    • Like
  25. Twaoperder

    Custom Protector CrackMe

    by Twaoperder

    View File 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) Submitter Twaoperder Submitted 08/21/2021 Category CrackMe  

    dtor135
    Last reply by dtor135,
×
×
  • Create New...