Module file tampered

Hi!

I’m getting a lot of tampered modules without even touching anything.

I’m on FreePBX 13, from a clean distro install. Everytime I open my FreePBX Admin, I have like 10-40 tampered modules that I need to redownload and reinstall. I tried regenerating the modules signatures, I still get the same errors. Here is an example of the last one I got :

Module: "OSS PBX End Point Manager", File: "/var/www/html/admin/modules/endpointman/assets/images/ajax-loader.gif altered"
Module: "OSS PBX End Point Manager", File: "/var/www/html/admin/modules/endpointman/assets/js/jquery.form.js altered"
Module: "OSS PBX End Point Manager", File: "/var/www/html/admin/modules/endpointman/assets/js/jquery.tools.min.js altered"
Module: "OSS PBX End Point Manager", File: "/var/www/html/admin/modules/endpointman/includes/brand_model_manager.inc altered"
Module: "OSS PBX End Point Manager", File: "/var/www/html/admin/modules/endpointman/includes/devices_manager.inc altered"
Module: "OSS PBX End Point Manager", File: "/var/www/html/admin/modules/endpointman/includes/pear_diff/Diff/Engine/native.php altered"
Module: "FreePBX Framework", File: "/var/www/html/admin/libraries/Composer/composer.lock altered"
Module: "FreePBX Framework", File: "/var/www/html/admin/libraries/Composer/vendor/guzzlehttp/guzzle/tests/Guzzle/Tests/Http/ClientTest.php altered"
Module: "FreePBX Framework", File: "/var/www/html/admin/libraries/Composer/vendor/neitanod/forceutf8/src/ForceUTF8/Encoding.php altered"
Module: "FreePBX Framework", File: "/var/www/html/admin/libraries/Composer/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Compiler/CheckCircularReferencesPassTest.php altered"` 

Does anyone have an idea of the problem?

Thanks,