Get Started
Overview
Last updated: November 2, 2026
MuRu Guard in 8 minutes
Watch the full tour of MuRu Guard 5.3.1: install it, switch on the Shield plugin, run your first scan, read the results, and find your way around every settings tab.
https://www.youtube.com/embed/oVQEiFHfR-wIn the video: installing the package and the Shield plugin, choosing what to scan, the Security Score and the results tabs, .htaccess Hardening, the printable Security Report, every Settings tab, the Smart AI Assistant and the Help Center.
What it is
MuRu Guard is a security scanner and firewall for Joomla. It installs like any other Joomla extension and runs inside the Joomla Administrator, using Joomla's own login and permissions. There is no separate scanner URL, no access key, and no public file you have to remember to delete afterwards.
What it finds
MuRu Guard scans your files and database for the signs a Joomla site has been compromised:
- uploads through the SP Page Builder
uploadCustomIconvulnerability - suspicious JCE paths
- tampered Joomla core entry points
- rogue Super Users you didn't create
- malicious code hidden in the database, menus and content
The results come with a Security Score from A to F, so you can see at a glance how much needs attention.
How it protects your site
Finding a problem is only the first step. MuRu Guard also helps you respond and stay protected:
- Shield plugin: blocks attacks on your site in real time.
- Scheduled scans: runs on its own and can send the results to your team's chat.
- Smart AI Assistant: opens a flagged file, explains what the code does, and suggests a fix for you to approve. It can never change Joomla core files or MuRu Guard's own code, so the scanner itself stays safe.
Supported versions
MuRu Guard works with Joomla 3 through the latest Joomla release. Joomla 3 sites use a dedicated Joomla 3 Pro build.
