FortiGuard Antivirus
The FortiGuard Antivirus services are included in the regular FortiGuard subscription and include automatic updates of antivirus engines and definitions as well as a DNS black list (DNSBL) through the FortiGuard Distribution Network (FDN).
Current information about your subscription and version numbers can be found at System > Config > FortiGuard. This page will also allow the configuration of connections to the FortiGuard Center and how often to check for updates to the antivirus files.