Learn to Create a Powerful Self Keygen

Table of Contents

1. Introduction
2. Downloading Crackmate 14 from the Website
3. Unzipping and Password Requirement
4. Generating a Serial Key
5. Challenge #1: Creating a Key Gen
6. Challenge #2: Writing a Self Question
7. Understanding Self Keygen
8. Setting Up the Environment
9. Running and Debugging Crackme14
10. Modifying the Code to Reveal the Serial Key
11. Using the Call Stack Method
12. Changing the Message Box String
13. Testing the Modified Code
14. Patching and Saving the Modified File
15. Conclusion

Introduction

In this article, we will explore the process of solving Crackmate 14, a program that requires a serial key based on your first name. We will go through each step, from downloading the program to patching the code to reveal the correct serial key. By following this guide, you will be able to create a key generator and understand the concept of a self question.

Downloading Crackmate 14 from the Website

To begin, visit the website where Crackmate 14 is available for download. Follow the provided link and click on the download button. Once the program is downloaded, move it to a designated folder on your computer.

Unzipping and Password Requirement

Before proceeding, unzip the downloaded file. The password required to unzip the file is "crackinglessons.com". Enter this password when prompted to access the contents of the zip file.

Generating a Serial Key

When you run Crackmate 14 for the first time, it will ask for your first name. Based on your input, it will generate a serial key. The challenge is to create a key generator that can generate any serial key based on the first name provided.

Challenge #1: Creating a Key Gen

The first challenge is to create a key generator that can generate a serial key by manipulating the program itself. Typically, a keygen would require a separate question, but in this case, we will modify the code to directly display the serial key.

Challenge #2: Writing a Self Question

A self question is a technique where you modify the program code to reveal the actual serial key instead of writing a separate keygen. In this video guide, we will demonstrate how to create a self question for Crackmate 14.

Understanding Self Keygen

A self keygen allows you to modify the program code to display the correct serial key instead of a wrong serial key message. By analyzing the code and understanding how it determines the validity of the serial key, we can modify it to show the desired outcome.

Setting Up the Environment

To start the cracking process, you need to have x64 dbg installed on your computer. Make sure you have the correct version installed, preferably the November 2021 release. Configure the preferences to optimize the debugging process, enabling only the necessary options.

Running and Debugging Crackme14

With x64 dbg set up, open the Crackme14 program in the debugger. Run the program and observe the user interface. Enter a first name and a random number, and click on the check button. Notice that it displays a "Wrong Serial Key" message.

Modifying the Code to Reveal the Serial Key

To make the program show the correct serial key, we need to analyze the code and identify the instruction responsible for displaying the message box. Using the call stack method, we can locate the function that generates the message box and modify the code accordingly.

Using the Call Stack Method

Pause the debugger and navigate to the call stack tab. Look for the user thread and double-click on it to view the code responsible for the message box. Analyze the jump instruction and locate the string that appears in the message box.

Changing the Message Box String

To modify the message box string, we need to change the address where the string is loaded. By assembling the code and replacing the address with the correct serial key address, we can make the program display the desired serial key.

Testing the Modified Code

After modifying the code, run the program again. Enter a first name and a random number, and click on the check button. This time, the program should display the correct serial key instead of the wrong serial key message.

Patching and Saving the Modified File

To save the modified program and use it as a self question, go to the file menu and select "Patch File". Save the patched file with a new name, such as "Crackme14 Version 2". Now you can test the new file, which will always display the correct serial key.

Conclusion

In conclusion, by following the steps outlined in this article, you have learned how to solve Crackmate 14 by creating a key generator and modifying the code to reveal the correct serial key. Understanding the concept of a self question allows you to manipulate the program to your advantage and achieve the desired outcome.