Checkmysite

Extension key: checkmysite
Package name: jweiland/checkmysite
Version: main
Language: en
Author: Stefan Froemken
License: This document is published under the Creative Commons BY 4.0 license.
Rendered: Wed, 10 Sep 2025 09:42:03 +0000

Check index.php for suspicious modifications

Table of Contents:

Introduction

What does it do?

This extensions checks the frontend index.php for suspicious code. If suspicious code was detected an email will be send to the administrator and the visitor will be redirected to a notification page or alternate site.

Installation

Composer

If your TYPO3 installation works in composer mode, please execute following command:

composer req jweiland/checkmysite
vendor/bin/typo3 extension:setup --extension=checkmysite

If you work with DDEV please execute this command:

ddev composer req jweiland/checkmysite
ddev exec vendor/bin/typo3 extension:setup --extension=checkmysite

ExtensionManager

On non composer based TYPO3 installations you can install checkmysite still over the ExtensionManager:

Login

Login to backend of your TYPO3 installation as an administrator or system maintainer.
Open ExtensionManager

Click on Extensions from the left menu to open the ExtensionManager.
Update Extensions

Choose Get Extensions from the upper selectbox and click on the Update now button at the upper right.
Install checkmysite

Use the search field to find checkmysite. Choose the checkmysite line from the search result and click on the cloud icon to install checkmysite.

Next step

Configure checkmysite.

Configuration

This chapter describes how the extension can be configured.

Extension Settings

Some general settings for checkmysite can be configured in Admin Tools -> Settings.

Properties

redirect_url

redirect_url

Required: false
type: string
Default: https://
Path: Extension Settings

If index.php was modified, you can redirect to another page. But please define a page on another server or domain to prevent endless redirect loops.

content_text

content_text

Required: false
type: string
Default: Sorry, our website is down for maintenance. Please try again later!
Path: Extension Settings

If you haven't configured a redirect URL, you can enter a fixed text here, which will be used for output.

email_to

email_to

Required: false
type: string
Default: [EMPTY]
Path: Extension Settings

Email address for notifications (separate multiple addresses with comma)

email_from

email_from

Required: false
type: string
Default: [EMPTY]
Path: Extension Settings

If we send emails, from whose email address we should send them? We prefer to insert addresses from your domain. Else they may be declared as spam.

email_wait_time

email_wait_time

Required: true
type: integer
Default: 1800
Path: Extension Settings

Set the waiting time (in seconds) between the notification e-mails.

template_output_alternative

template_output_alternative

Required: true
type: string
Default: EXT:checkmysite/Resources/Private/Output/Alternative.html
Path: Extension Settings

Define a template, which should be shown, if an index.php modification was detected.

ChangeLog

Version 4.0.0

Add TYPO3 12.4 compatibility
Add TYPO3 11.5 compatibility
Move ext_icon.gif to new position
Check code with help of PHP lint and php-cs-fixer
Add strict types where possible
Make use of FluidEmail
Remove configuration for email templates

Version 3.1.0

Add TYPO3 8.7 compatibility