A Wordpress site's best friend!
Coral is a stand-alone application, but it is highly useful when purposed for Wordpress code inspection. Coral is a file integrity scanning tool that allows you to get instant notification when there are modifications to your Wordpress site. Additionally, Coral creates safe backups and allows you to restore a safe copy of bad files without hunting down where the problem is. It is also adept at finding insecure PHP code in your themes and plugins. If you use Wordpress, you should really be using Coral!
Thanks to the stand-alone nature of Coral, it can safely sit on your site and help you find out when bad guys are doing their nasty deeds. Whether it is Wordpress, Joomla!, or Drupal - Coral will inspect and find malicious code.