First you need install ModSecurity to CentOS Web Panel. Just select default settings and install ModSecurity, because there is not custom selection for rules.
When ModSecurity installed, we need edit rules configuration file:
Now edit Rules Configuration file /usr/local/apache/modsecurity-owasp-old/owasp.conf. Just delete all lines current configuration.
Then Add line and replace SerialKey with your subscription serial key!:
SecRemoteRules SerialKey https://rules.malware.expert/download.php?rules=generic
Note! Remember save configuration!
Final restart apache and check apache error_log that rules loaded.