Xeno
Xeno: An external script executor for Roblox made entirely in C++. It uses a working but detected method of overwriting the bytecode of a corescript to manage script execution
Install / Use
/learn @tyronetheqt/XenoREADME
Originally archived by M-r7z
[!WARNING] You are most likely going to be banned since this is detected by Byfron. Use an alt account while running Xeno. Use the repository to understand what's happening and how it works. I am not liable for any bans
Xeno
An executor made for the web version of Roblox.
It uses the common method of writing unsigned bytecode into a Roblox core module script to manage execution, also more stable and flexible than most executors that has used this exact method.
Donation
I have made a total of $34.97 from making the project Xeno. I would highly appreciate any donations that were given to me by anyone since I have spent a lot of time working on this project.
CashApp: $RizveA
PayPal: RizveA
Bitcoin: bc1qvhdnqtgcselqv9s9dt9varadh0zkal5239pgl4
Ethereum: 0x713eAb6Bc8e18D1E0cdF6f03eA03df57c889592A
Litecoin: LVNsAoXbJHgdCcc6oi8cqbYmGqg9tXsM2P
Top 3 Donators:
Note
If you're going to use my source and "skid" off of it atleast use the license and give credits. Don't be like the others who used my entire source code and claimed it as their own without mentioning anything about Xeno nor the publisher + distributing & selling to others.
Features
- Fast execution
- Multi-instance compatibility
- Supports executing most scripts including Lua Armor scripts
- Uses extremely fast virtual filesystem that syncs to the external
- No in-game performance change & no high CPU usage
- Custom functions like HttpSpy, getting the real address of a Instance, setting & getting globals across all clients, and spoofing instance
I have only used this project to learn C++ and a bit of C#.
Do not expect the best code and memory management. You will see really bad code and design on the XenoUI C# WPF project since it was only made as a prototype.
This executor has many vulnerabilities because only I have used Xeno and did not make a public release.
Custom functions examples:
-- get real address
local address = Xeno.get_real_address(game:GetService("ScriptContext"))
print("Script context address:", string.format("0x%x", address))
-- spoof instance
Xeno.spoof_instance(game:GetService("CoreGui"), 0) -- set the address of coregui to 0
Xeno.spoof_instance(game.Players.LocalPlayer, Instance.new("Part")) -- set the localplayers address to a part
-- http spy
Xeno.HttpSpy() -- set http spy to true
Xeno.HttpSpy(false) -- set httpspy to false
-- globals (shared across all clients, saved inside the executor)
-- similar to Instance:GetAttribute() but supports tables
-- global name, value
Xeno.SetGlobal("__test", { -- can only set table, number, and string as a global
["test_text"] = "hello, world!"
})
local t = Xeno.GetGlobal("__test") -- the table we just set
print(t.test_text) -- hello, world!
-- other
print(Xeno.PID) -- current roblox process id
print(Xeno.GUID) -- the guid it is using to communicate with the external
The current method of adding HttpGet to "game" interferes with some scripts like dex. To execute dex run this script:
getgenv().game = workspace.Parent
This will remove HttpGet from game! You can use the modified version of dex made for Xeno inside the released files
Preview
<p>This is the UI of the version 1.0.1:</p> <img src="v1.0.1-Preview.png" alt="Preview" width="600" style="box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.5), -10px -10px 20px rgba(255, 255, 255, 0.3);" /> <p>The Current UNC is <span style="color: green;">~75%</span></p> <img src="v1.0.45-UNC.png" alt="Preview" width="600" style="box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.5), -10px -10px 20px rgba(255, 255, 255, 0.3);" />Dependencies
This project uses the following libraries:
Dependencies are managed with vcpkg. Install them with this command:
vcpkg install xxhash zstd openssl
The proper version of httplib is already included inside this project
Credits
Thank you Incognito for the method.
Thanks to others that has helped me with decompressing, and compressing the bytecode.
Thanks to the Init script of TaaprWareV2 by plusgiant5
Thanks to nhisoka for helping me out at the start of this project
Security Score
Audited on Mar 31, 2026
