Erik Torsner

<p>Integrity-checker uses a mix of traditional and new techniques to scan your website for potential issues. First and foremost, it verifies that all installed code is identical to it’s original version. By comparing WordPress core, plugins and themes in your installation with the original versions available at wordpress.org, Integrity-checker can quickly determine if there are any changes you need to be aware of. Integrity-checker also lets you compare your local version to the original to help you determine if you’ve been hacked.</p>
<p>Additionally, Integrity-checker scans all installed files for permission issues. Ensuring correct permissions is vital for WordPress security, as with any PHP based web application.</p>
<p>Lastly, Integrity-checker will look through some of the basic WordPress configuration to look for common security problems like user enumeration, directory index weak credentials etc.</p>
<h4>Features</h4>
<ul>
<li>Helps you track down hacked WordPress files in core, plugins and themes  </li>
<li>Makes it easy to find issues with file permissions</li>
<li>Detects common configuration problems</li>
</ul>
<h4>3rd party software</h4>
<p><a href="https://github.com/mtdowling/cron-expression" rel="nofollow ugc">cron-expression</a> copyright Michael Dowling, see <a href="https://raw.githubusercontent.com/mtdowling/cron-expression/v1.1.0/LICENSE" rel="nofollow ugc">license</a>. Cron-expression is slightly adopted to use the Integrity Checker namespace to avoid potential conflicts.</p>
<p><a href="https://github.com/chrisboulton/php-diff" rel="nofollow ugc">php-diff</a> copyright Chris Boulton under the <a href="https://opensource.org/licenses/BSD-3-Clause" rel="nofollow ugc">BSD license</a>. php-diff is slightly adopted to use the Integrity Checker namespace to avoid potential conflicts.</p>
<p><a href="https://github.com/silexphp/Pimple/" rel="nofollow ugc">silexphp/Pimple</a> copyright Fabien Potencier, see <a href="https://github.com/silexphp/Pimple/blob/v3.0.2/LICENSE" rel="nofollow ugc">license</a>. Pimple is slightly adopted to use the Integrity Checker namespace to avoid potential conflicts.</p>
<p><a href="https://datatables.net" rel="nofollow ugc">DataTables</a> 1.10.13 copyright 2008-2016 SpryMedia Ltd. Licensed under the MIT license, see <a href="https://datatables.net/license" rel="nofollow ugc">datatables.net/license</a></p>
<p><a href="https://github.com/arnapou/jqcron" rel="nofollow ugc">jqCron.js</a> Licensed under the MIT license, see <a href="https://github.com/arnapou/jqcron/blob/master/LICENSE" rel="nofollow ugc">license</a></p>


Integrity Checker

I've modified the review after discussion with the author

This is a very useful tool! The free API limit might be a little low if you want to test the site recurrently but it's still a useful tool.

Promising!

The WordPress Integrity Checker checks your WordPress installation by detecting modified files, permissions issues and other common problems.

kamranmayo

<p>Checks the current WordPress installation for file tampering using the official WordPress.org checksum API. Features:</p>
<ul>
<li>Admin page with modern Bootstrap UI</li>
<li>Modal with progress and results</li>
<li>Dashboard widget for latest scan summary</li>
<li>Email alerts when discrepancies are found</li>
<li>Option to reinstall WordPress core</li>
</ul>
<h3>External services</h3>
<p>This plugin uses the official WordPress Checksums API to compare your WordPress core files against known-good hashes.<br />
No user data is transmitted. Only your site’s WordPress version and locale are sent to the API endpoint at https://api.wordpress.org/core/checksums/.</p>


Core Checksum Verifier

Verifies the integrity of your WordPress core files with official checksums. Displays modified/missing files.

Integrity Checker vs Core Checksum Verifier