Environment/userdata emulator

Bypass Roblox userdata readonly restrictions – while tracking and monitoring all environment behavior in Lua.

• Overview
• Features
• Installation
• Usage
• API Reference
• How It Works
• Example Monitored Log Output
• Performance Considerations
• Contributing
• License

Overview

This Lua module is designed for Roblox environments and allows developers to:

• Bypass readonly restrictions on Roblox userdata fields (e.g., game.CreatorId)
• Continuously monitor all access and modifications to Roblox objects, functions, and properties
• Detect, log, and analyze data exfiltration or unauthorized access behaviors
• Build a secure, observable execution environment for scripts

Note: This module facilitates security research and development, not hacking or misuse!

Features

• Readonly Bypass: Access and manipulate properties normally blocked by Roblox's metatable protections.
• Full Access Monitoring: Track every get, set, function call, and object creation in your scripts.
• Detailed Exfiltration Logs: Every monitored event is timestamped and contextualized for security audits.
• Exportable Logs: Output logs in JSON or pretty ASCII table for post-analysis.
• Custom Env Emulation: Create locked-down, monitored script environments with custom function replacements.

Installation

1. Add this module as a ModuleScript in your Roblox game.
2. Require the module in your controlling scripts:

local SecurityMonitor = require(path.to.SecurityMonitorModule)

Usage

Basic Environment Setup

-- Initialize and wrap your script environment
local secureEnv = SecurityMonitor.Init({})

-- To monitor a specific script in isolation:
setfenv(targetScript, secureEnv)

Bypassing Readonly Userdata Properties

-- Directly access or modify Roblox protected fields (e.g., CreatorId)
local creatorId = secureEnv.game.CreatorId -- Will be intercepted and accessible!
secureEnv.game.CreatorId = 133742

Advanced Monitoring and Logging

-- Enable immediate log display for each monitored event:
SecurityMonitor.EnableAutoDisplay()

-- Print a formatted log at any time:
SecurityMonitor.PrintExfiltrationLog()

-- Export the entire log in JSON format:
local json = SecurityMonitor.ExportExfiltrationLog()

Custom Library Emulation

local customHttpService = SecurityMonitor.Emulate_Libraries(game:GetService("HttpService"), {
    RequestAsync = function(params)
        -- your custom networking stub here
    end
})

API Reference

Function	Description
Init(customData)	Initializes a monitored environment for your scripts.
Emulate_Libraries(original, custom)	Wraps Roblox libraries and overrides their methods for custom behavior and monitoring.
Emulate_Lua_Functions(map)	Spoofs/replaces global Lua functions (like print) within the monitored environment.
Overwrite_Environment(newEnv)	Swaps the current script environment for a new one.
ClearCache()	Clears all internal proxy caches, freeing memory.
EnableAutoDisplay()	Automatically displays log entries in real time.
DisableAutoDisplay()	Turns off real-time log display.
PrintExfiltrationLog()	Print a pretty-formatted ASCII log of all monitored actions.
ExportExfiltrationLog()	Get the entire event log as a JSON string.
ClearExfiltrationLog()	Remove all entries from the event/exfiltration log.
GetExfiltrationCount()	Returns the total number of tracked actions/events so far.

How It Works

1. Bypassing Readonly Restrictions: This module injects proxy objects and metatable overrides that allow property access and modification even on fields Roblox usually marks as readonly (e.g., game.CreatorId).

2. Access Monitoring: Every get, set, or method call on Roblox objects, instances, or libraries is tracked, logged, and made observable by the module.

3. Proxy Creation: When a Roblox Instance/function is accessed, a unique proxy object is created. This proxy intercepts all standard metamethods (__index, __newindex, __call, etc.), enabling both logging and readonly-bypass logic.

4. Custom Environments: Initialize execution environments that wrap globals, intercept libraries, and allow per-script tracking and function replacement.

5. Data Exfiltration Logging: Each access is timestamped, contextualized (path, action, value, etc.), and can be displayed in real-time (auto-display) or exported for post-mortem review.

Example Monitored Log Output

  ┌─────┬───────────────────┬──────────────────────────┬──────────────────────────────────┬────────┬───────────────────────────────────────────────────────┐
  │INDEX│TIMESTAMP          │OBJECT PATH               │ACTION                            │TYPE    │VALUE                                                  │
  ├─────┼───────────────────┼──────────────────────────┼──────────────────────────────────┼────────┼───────────────────────────────────────────────────────┤
  │1    │2025-04-23 18:41:02│Environment               │EnvAccess                         │index   │game                                                   │ 
  ├─────┼───────────────────┼──────────────────────────┼──────────────────────────────────┼────────┼───────────────────────────────────────────────────────┤
  │2    │2025-04-23 18:41:02│Game.GetService           │LibAccess                         │function│function: 0x6e19b198bcd7ff1b                           │ 
  ├─────┼───────────────────┼──────────────────────────┼──────────────────────────────────┼────────┼───────────────────────────────────────────────────────┤
  │3    │2025-04-23 18:41:02│HttpService.GetAsync      │LibAccess                         │function│function: 0x07fb3122d000609b                           │ 
  ├─────┼───────────────────┼──────────────────────────┼──────────────────────────────────┼────────┼───────────────────────────────────────────────────────┤
  │4    │2025-04-23 18:41:02│HttpService.GetAsync      │LibFuncCall                       │function│args:{ https://example.com }                           │  ▶ {...} -- << args
  ├─────┼───────────────────┼──────────────────────────┼──────────────────────────────────┼────────┼───────────────────────────────────────────────────────┤
  │5    │2025-04-23 18:41:03│HttpService.GetAsync      │LibReturn                         │string  │<!doctype html>                                        │
  └─────┴───────────────────┴──────────────────────────┴──────────────────────────────────┴────────┴───────────────────────────────────────────────────────┘ 

Performance Considerations

• There is some performance overhead due to proxy and metatable interception on every property and function access.
• Use ClearCache() and ClearExfiltrationLog() to manage memory during long sessions.
• To reduce impact, only wrap scripts or libraries that truly require monitoring/bypass.
• All content is laid out without scrollbars or extra breaks for PDF-friendly continuous export.

Contributing

1. Fork this repository and create a new feature branch.
2. Make changes and add tests where appropriate.
3. Submit a pull request with a clear description of your changes.