[eUKhost.com]

PHP Suexec was enabled on firefly recently as some customers were running applications which were overloading the server and as they were running under nobody ownership so we were not able to track who was the culprit.

Seems like you all are using CMS like Joomla or Mambo which has previously created files with nobody permissions in your account. You will need to open a ticket for our support team and provide your domain name in the ticket as that will help our system admins to make necessary settings for your account to stop creation of core files in your webspace.