NepAu (Native Lib for Auto-Update) is a runtime dynamic analysis library designed to interface with Unity IL2CPP binaries and native libraries (.so). Ideal for reverse engineering, modding, and automation, it provides an elegant and consistent interface to access classes, fields, methods, symbols, and patterns in memory.

• 📁 Repo Name: NepAu
• 🌐 URL: https://github.com/nepmods/NepAu
• 👤 Author: @nepmods / arjun

• 🧠 IL2CPP class/method/field accessor
• 🔍 Pattern scanning via memory range
• 📜 Symbol resolver with offset calculation
• 📚 Module metadata handling (start, end, size)
• 🔄 Dynamic loader with retry and fallback
• 🧪 Support for Unity & custom libraries

This Project can be used by just including one file

#include "NepAU/includeOnly/NepAU.h

This Project can also be used by building source file put this on your cmakelist/android.mk

    NepAU/src/NepAu.cpp

#include "NepAU/src/NepAu.h

LibManager manager("libil2cpp.so");

if (manager.loaded()) {
    NClass playerClass = manager.get_class("PlayerControl");

    Address killMethod = playerClass.method("MurderPlayer", 1);
    NField nameField = playerClass.field("playerName");

    uintptr_t offset = nameField.offset();

    std::string playerName;
    nameField.getStatic(&playerName);

    LOGI("Kill method at: 0x%lx", (uintptr_t)killMethod);
    LOGI("Name offset: %lx", offset);
}

Run inside your injected project or loader environment:

• Dobby-based mods
• Android shared object loaders
• Unity IL2CPP hooks (e.g. ModMenu)

We welcome contributions!

1. 🍴 Fork the repo
2. 🔧 Create a feature branch (feature/something)
3. ✅ Commit your changes
4. 🚀 Open a Pull Request

📜 Please ensure changes are clean and well-documented.

This project is licensed under the MIT License.
See the LICENSE file for details.

• Developed by @nepmods / arjun
• Inspired by IL2CPP reverse engineering community
• With appreciation to:
  • Frida
  • Dobby
  • xDL

For issues or feature requests:
👉 Open an issue
Or email: [email protected] (example email, customize as needed)