Java Memory Trainer Library (Windows)

A simple Java library used to Read and Write Memory from a Windows process, written using the Java Native Access and Google Guava api.

Usage

Basic example:

// Relative memory address inside process
final int MEMORY_ADDRESS = 0x00010ABF;

// Create JTrainer instance for Minesweeper process (window name)
JTrainer jTrainer = new JTrainer(null, "Minesweeper");

// Write 4 bytes as hex 0x90 (nop) to process
jTrainer.writeProcessMemory(MEMORY_ADDRESS, new int[] { 0x90, 0x90, 0x90, 0x90 });

// Read 4 bytes from process and print out the result
byte[] bytes = jTrainer.readProcessMemory(MEMORY_ADDRESS, 4);
System.out.println(Arrays.toString(MemoryUtils.bytesToUnsignedHexes(bytes));

License

The code in this project is licensed under the Apache Software License 2.0, per the terms of the included LICENSE file.

Dependencies

• Google Guava (13.0.1)
• Java JNA Platform (3.4.0)
• Java JNA (3.3.0)

References

• Cheat Engine - http://cheatengine.org/
• Intel x86 Opcode Reference - http://ref.x86asm.net/coder32.html
• Java JNA - https://github.com/twall/jna
• OllyDbg - http://www.ollydbg.de/
• Windows Development Reference - http://msdn.microsoft.com/en-us/library/windows/desktop/hh447209(v=vs.85).aspx