Mu-On AntiCheat Server
Professional Anti-Cheat Protection for MuOnline Season 6 / MuEmu Servers

Overview

Mu-On AntiCheat is a client-server protection system designed for private MuOnline Season 6 servers, especially MuEmu-based projects.

The main goal of Mu-On is to help server owners monitor players, detect suspicious behavior, reduce macro and cheat abuse, collect evidence, and manage protection settings directly from the running server application.

The system is focused on stability, usability, and real server operation. Most protection options can be configured from the server interface without manually editing configuration files.


Main Features

• Client-server anti-cheat architecture
  The protection works through a client DLL and a server-side control panel.
  
  
• MuOnline Season 6 / MuEmu compatibility
  Designed with Season 6 client behavior and MuEmu server environments in mind.
  
  
• Live server configuration
  Most options can be enabled, disabled, and adjusted directly from the running anti-cheat server.
  
  
• Russian and English interface
  The server interface supports language switching. Menus, buttons, and tooltips are available in Russian and English.
  
  
• Player Info panel
  View connected players, IP, HWID, account information when available, risk score, heartbeat state, macro score, and current status.
  
  
• Player moderation tools
  Kick, ban IP, ban HWID, quarantine, watch mode, trusted mode, risk reset, and manual risk adjustment.
  
  
• Anti-macro protection
  Behavior-based macro scoring with configurable strictness, repeated action detection, timing analysis, and risk-based reactions.
  
  
• Risk score system
  Suspicious behavior increases the player's risk score. The server can react softly or strictly depending on your selected protection mode.
  
  
• Protection profiles
  Quick profiles for different server stages:
  - Test / Monitor Only
  - Live Server Safe
  - Strict
  - Tournament
  
  
• Heartbeat and anti-bypass monitoring
  Detects clients that stop responding, lose anti-cheat connection, or attempt to play without a valid anti-cheat session.
  
  
• Screenshot system
  The server can request screenshots manually or automatically when a player becomes suspicious.
  
  
• Live desktop view
  Allows the server administrator to view the client screen in real time when needed for manual investigation.
  
  
• Process list viewer
  Request and inspect the client process list from the server panel.
  
  
• Process dump info
  Collect process entry point, CRC, and related diagnostic information for suspicious files.
  
  
• File download from client
  Download selected client-side EXE/DLL files to the server for manual analysis.
  
  
• Evidence bundle
  Generate reports with player risk, timeline, screenshot request, process list request, IP, HWID, and security context.
  
  
• Security event logging
  Events can be saved to CSV for later review and investigation.
  
  
• Temporary and permanent ban management
  View blocked IP/HWID entries, remove bans from the server interface, and refresh the protection state immediately.
  
  
• Firewall and DDoS helper settings
  Configurable flood thresholds, IP limits, protected ports, and optional temporary firewall bans.
  
  
• Safe Mode and Learning Mode
  Useful for live servers during the first setup stage to reduce false punishments while still collecting logs and evidence.
  

Why Mu-On is useful for server owners

• Helps detect suspicious players before they damage the server economy.
• Reduces manual investigation time.
• Allows administrators to collect screenshots, process lists, and reports.
• Provides soft protection modes for safe testing.
• Does not require every setting to be edited manually in INI files.
• Gives clear tooltips and explanations for configuration options.
• Supports both Russian and English server management.

Anti-Macro Protection

Macro abuse is one of the most common problems on MuOnline servers. Mu-On includes behavior-based checks that analyze repeated actions, timing patterns, low human variation, and suspicious input rhythm.

The macro protection can be configured from soft mode to strict tournament-style mode. This allows the server owner to start carefully and increase strictness only after testing.


Evidence and Investigation Tools

Mu-On is not only a ban tool. It is also an investigation tool.

Administrators can collect:

• Screenshots
• Live desktop view
• Process list
• Downloaded suspicious files
• Risk explanation
• Player timeline
• Appeal reports
• Security event logs

This makes it easier to review suspicious players and reduce false positives.


VirusTotal Scan

VirusTotal file check:
https://www.virustotal.com/gui/file/84c6ed2d318674ebbe87cace53e828881c713d59a933c98879cd0c3cdd84bfa7?nocache=1


Video Demonstration

YouTube:

Recommended Usage

For a live server, it is recommended to start with:

• Live Server Safe profile
• Safe Mode enabled during first testing
• Learning Mode enabled for the first days
• Auto Evidence enabled
• Macro protection in normal mode
• Firewall bans enabled gradually after testing

After reviewing logs and player behavior, the server owner can increase protection strictness.


Final Notes

Mu-On AntiCheat is made for server owners who want more control, better visibility, and stronger protection for their MuOnline project.

It combines detection, monitoring, evidence collection, moderation tools, and live configuration in one server-side control panel.

Mu-On AntiCheat - protect your MuOnline server with confidence.

Download

Mu-On AntiCheat download link:



Testing and Feedback

This anti-cheat is still being improved and developed further.

If you test Mu-On AntiCheat and find any problems, bugs, false positives, connection issues, or have ideas for new features, please write your feedback under this forum topic.

I want to continue improving this project and help people who want to have their own free anti-cheat with useful functionality for their MuOnline servers.

All suggestions, test reports, and real server feedback are welcome.

Nice brother, give me source please.

It seems that it spams the screenshot disconnect send.

Nice brother, give me source please.

It seems that it spams the screenshot disconnect send.

If you have exact information about when this happens, please describe the situation and I will make a correction. Perhaps tomorrow I will post a new correction in the tips, since it is not correct everywhere. English is displayed, and I want to remind you that the anti-cheat database is empty. If anyone needs it, I can also share it. As for the source code, it's not ready yet. First, I want to get as much feedback as possible from you who will use the anti-cheat. 

please can you share the database?

 

please can you share the database?

Okay, I'll fix the main server today and share the database.

could you also check whether the Detection and Reading of Dump, Window, and Internal are working as I tried in my own server it looks like it is not working and it is allowing me to use some old hacks without a problem.

Limit?

could you also check whether the Detection and Reading of Dump, Window, and Internal are working as I tried in my own server it looks like it is not working and it is allowing me to use some old hacks without a problem.

Thanks for the advice, I'll check it all out now and make an update soon.

Limit?

No limit friend, but if you encounter any problem please let me know. 

Limit?

No limit friend, but if you encounter any problem please let me know. 

if its okay lets talk in Discord so I can send all the error i encounter so you can fixed it right away

Limit?

No limit friend, but if you encounter any problem please let me know. 

if its okay lets talk in Discord so I can send all the error i encounter so you can fixed it right away

Alright, you can contact me.

Limit?

No limit friend, but if you encounter any problem please let me know. 

if its okay lets talk in Discord so I can send all the error i encounter so you can fixed it right away

Alright, you can contact me.

send me a MP of your discord so we can start the fixing of some errors :"D

Limit?

No limit friend, but if you encounter any problem please let me know. 

if its okay lets talk in Discord so I can send all the error i encounter so you can fixed it right away

Alright, you can contact me.

send me a MP of your discord so we can start the fixing of some errors :"D

pocchaha 
That's strange—I could have sworn I mentioned it in my last message, but it seems to have gotten lost somewhere.

Limit?

No limit friend, but if you encounter any problem please let me know. 

if its okay lets talk in Discord so I can send all the error i encounter so you can fixed it right away

Alright, you can contact me.

send me a MP of your discord so we can start the fixing of some errors :"D

pocchaha 
That's strange—I could have sworn I mentioned it in my last message, but it seems to have gotten lost somewhere.

MP Sent in Discord

please can you share the database?

Mu-On AntiCheat 0.0.1 Test Build - Fixes, Database Update and Feedback Thread

Mu-On AntiCheat 0.0.1 - Public Test Build
MuOnline Season 6 / MuEmu AntiCheat Server + Client Protection

Hello everyone,

I am continuing the development of Mu-On AntiCheat, a free anti-cheat project for private MuOnline servers.

This topic is for testing the latest 0.0.1 build and collecting feedback from server owners, developers and testers. If you find bugs, crashes, false positives, missing detections, UI problems or have ideas for better protection, please post them in this thread.


What Changed in This Build

General

• Project version reset to 0.0.1 so future builds can be tracked properly.
  
• Server title now displays the correct version: Mu-On AntiCheat Server (version: 0.0.1).
  
• Client DLL and server version were synchronized to avoid version mismatch problems.
• Updated ready-to-use package structure for easier testing and deployment.

Server UI Fixes

• Fixed empty text in the Language menu.
  
• Language menu now shows simple options: Eng and Ru.
  
• Fixed missing text in the Temporary Banned Users window.
  
• Fixed buttons in the ban window: Remove Ban, Refresh, Close.
  
• Improved localization handling so menu and tooltip text follows the selected language better.

Database Updates

• Merged new cheat signatures into the working anti-cheat databases.
• Removed duplicate entries from the databases.
• Updated Dump.List.db.
  
• Updated Window.List.db.
  
• Updated Internal.List.db.
  
• Databases remain plain text and editable for future manual additions.
• Blank lines and comments are now safely ignored by the loader.
• Internal list loading was improved to support plain text format while keeping fallback compatibility with older encrypted files.

Current Database Size

• Dump.List.db: 3871 unique entries.
  
• Window.List.db: 1275 unique entries.
  
• Internal.List.db: 52 unique entries across 3 sections.
  

Stability / Loading Fixes

• Improved database loading so empty lines do not break the anti-cheat server.
• Improved packaging so the latest databases are included in the ready build.
• Tested server startup after database load.
• Verified that the server remains running after loading the updated databases.

What Needs Testing

Please test the following areas if possible:

• Server startup with the included databases.
• Client connection to the anti-cheat server.
• Normal login and server selection.
• False positives with clean clients.
• Detection of known cheat tools, suspicious windows and injected DLLs.
• Temporary ban list window.
• Language switching between English and Russian.
• Tooltips in different server windows.
• Player Info window.
• Screenshot and process list features.
• Firewall / DDoS protection options.
• Macro detection behavior during normal gameplay.

Important Notes

• This is a test build. Please test it carefully before using it on a live production server.
  
• Some protections should be enabled gradually to avoid false positives.
• If you are testing on a real player base, start with softer settings first.
• Keep backups of your current server files before replacing anything.
• If you add new cheat signatures to the database, keep the same text format.

Feedback Format

If you report a problem, please include:

• Operating system.
• MuOnline server files/version.
• Client version.
• What you were doing when the issue happened.
• Server anti-cheat log.
• Client anti-cheat log.
• Screenshot or video if possible.
• Which protection options were enabled.

Example:

Code: [Select]

Problem:
Client disconnects after selecting server.

Server files:
MuEmu Season 6

Enabled options:
Heartbeat, Window List, Dump List, Macro Guard

Server log:
...

Client log:
...

Steps to reproduce:
1. Start client
2. Connect to anti-cheat
3. Select game server
4. Disconnect happens

Download

Latest test build:


VirusTotal scan:
VirusTotal Report


Final Message

This project is being developed for people who want to have their own free anti-cheat with useful real server-side functionality.

If you test this build and find problems, please write directly in this topic. I want to continue improving Mu-On, fixing bugs, reducing false positives and adding useful protection features for MuOnline private servers.

Thank you to everyone who helps with testing.

give me your discord too brother, I want to help you with your anti hack as well.


Yes it seems that it dumplist.db and the windowlist.db. Try to make the dumplist to read as many lines as possible & also the windowlist.db try to make it read both uppercase/lowercases letters with no restriction.

give me your discord too brother, I want to help you with your anti hack as well.


Yes it seems that it dumplist.db and the windowlist.db. Try to make the dumplist to read as many lines as possible & also the windowlist.db try to make it read both uppercase/lowercases letters with no restriction.

Nice to see you, here's my Discord.
pocchaha

I already told him that dump window are not working properly since it is not reading or scanning the inserted info

I already told him that dump window are not working properly since it is not reading or scanning the inserted info

I have asked you to send the logs, but you never actually do so—you simply write that it isn't working. That is truly "helpful" assistance on your part. You are asking me to take a wild guess and pinpoint the problem, which is impossible to do without proper feedback. Yet, no matter how many times I tell you that I need your anti-cheat logs, you simply fail to grasp this.

please can you share the database?

Mu-On AntiCheat 0.0.1 Test Build - Fixes, Database Update and Feedback Thread

Mu-On AntiCheat 0.0.1 - Public Test Build
MuOnline Season 6 / MuEmu AntiCheat Server + Client Protection

Hello everyone,

I am continuing the development of Mu-On AntiCheat, a free anti-cheat project for private MuOnline servers.

This topic is for testing the latest 0.0.1 build and collecting feedback from server owners, developers and testers. If you find bugs, crashes, false positives, missing detections, UI problems or have ideas for better protection, please post them in this thread.


What Changed in This Build

General

• Project version reset to 0.0.1 so future builds can be tracked properly.
  
• Server title now displays the correct version: Mu-On AntiCheat Server (version: 0.0.1).
  
• Client DLL and server version were synchronized to avoid version mismatch problems.
• Updated ready-to-use package structure for easier testing and deployment.

Server UI Fixes

• Fixed empty text in the Language menu.
  
• Language menu now shows simple options: Eng and Ru.
  
• Fixed missing text in the Temporary Banned Users window.
  
• Fixed buttons in the ban window: Remove Ban, Refresh, Close.
  
• Improved localization handling so menu and tooltip text follows the selected language better.

Database Updates

• Merged new cheat signatures into the working anti-cheat databases.
• Removed duplicate entries from the databases.
• Updated Dump.List.db.
  
• Updated Window.List.db.
  
• Updated Internal.List.db.
  
• Databases remain plain text and editable for future manual additions.
• Blank lines and comments are now safely ignored by the loader.
• Internal list loading was improved to support plain text format while keeping fallback compatibility with older encrypted files.

Current Database Size

• Dump.List.db: 3871 unique entries.
  
• Window.List.db: 1275 unique entries.
  
• Internal.List.db: 52 unique entries across 3 sections.
  

Stability / Loading Fixes

• Improved database loading so empty lines do not break the anti-cheat server.
• Improved packaging so the latest databases are included in the ready build.
• Tested server startup after database load.
• Verified that the server remains running after loading the updated databases.

What Needs Testing

Please test the following areas if possible:

• Server startup with the included databases.
• Client connection to the anti-cheat server.
• Normal login and server selection.
• False positives with clean clients.
• Detection of known cheat tools, suspicious windows and injected DLLs.
• Temporary ban list window.
• Language switching between English and Russian.
• Tooltips in different server windows.
• Player Info window.
• Screenshot and process list features.
• Firewall / DDoS protection options.
• Macro detection behavior during normal gameplay.

Important Notes

• This is a test build. Please test it carefully before using it on a live production server.
  
• Some protections should be enabled gradually to avoid false positives.
• If you are testing on a real player base, start with softer settings first.
• Keep backups of your current server files before replacing anything.
• If you add new cheat signatures to the database, keep the same text format.

Feedback Format

If you report a problem, please include:

• Operating system.
• MuOnline server files/version.
• Client version.
• What you were doing when the issue happened.
• Server anti-cheat log.
• Client anti-cheat log.
• Screenshot or video if possible.
• Which protection options were enabled.

Example:

Code: [Select]

Problem:
Client disconnects after selecting server.

Server files:
MuEmu Season 6

Enabled options:
Heartbeat, Window List, Dump List, Macro Guard

Server log:
...

Client log:
...

Steps to reproduce:
1. Start client
2. Connect to anti-cheat
3. Select game server
4. Disconnect happens

Download

Latest test build:
 

VirusTotal scan:
VirusTotal Report


Final Message

This project is being developed for people who want to have their own free anti-cheat with useful real server-side functionality.

If you test this build and find problems, please write directly in this topic. I want to continue improving Mu-On, fixing bugs, reducing false positives and adding useful protection features for MuOnline private servers.

Thank you to everyone who helps with testing.

A colossal amount of work has gone into eliminating numerous errors. However, the result achieved is truly impressive. Enjoy, friends—I think you will be pleased with the work that has been done.
Thank you to everyone who lent a hand; even more work and improvements are planned for the future.

Update 0.1.0