JByteMod Native Module Dumper

A plugin for JByteMod Remastered that lists and dumps file-backed native libraries loaded by an attached JVM.

Features

• Lists native libraries loaded through System.load and System.loadLibrary.
• Shows each library's name, size, and source path.
• Filters the module list by name or path.
• Dumps one, several, or all listed libraries.
• Ships its own target-side agent extension and uses JByteMod's generic authenticated extension transport.
• Adds native-module tools to the MCP Server plugin when both plugins are enabled.
• Keeps both JByteMod API and optional MCP dependencies outside the plugin JAR.

Limitations

The plugin only lists libraries known to the JVM that still have a readable backing file. It cannot recover a DLL, SO, or dylib that was manually mapped directly from memory or whose backing file has already been removed. Reconstructing a manually mapped PE image requires a separate native memory scanner and does not reproduce the original file exactly after relocations and import resolution.

Requirements

• JByteMod Remastered 2.11.0 or newer
• Java 21 or newer
• An active attachment to a JVM
• MCP Server 1.0.0 or newer for optional MCP tools

MCP integration

When the MCP Server plugin is installed and enabled, the dumper registers these additional tools:

• list_native_modules
• dump_native_module
• dump_all_native_modules

The Native Module Dumper continues to work as a regular GUI plugin when MCP Server is absent or disabled.

Installation

Build the plugin:

mvn package

Copy target/plugin-native-module-dumper-1.0.0.jar into JByteMod's plugin directory:

• Windows: %APPDATA%\JByteMod-Remastered\plugins
• macOS: ~/Library/Application Support/JByteMod-Remastered/plugins
• Linux: ~/JByteMod-Remastered/plugins

Restart or reload plugins in JByteMod, then open Plugins > Native Module Dumper.