Fortinet fortigate-100a Betriebsanweisung

You can enable oversized file blocking in a firewall protection profile. To access 
protection profiles go to Firewall > Protection Profile, select Anti-Virus > Oversized 
File/Email and choose to pass or block oversized email and files for each protocol.

Grayware programs are unsolicited commercial software programs that get installed 
on computers, often without the user’s consent or knowledge. Grayware programs are 
generally considered an annoyance, but these programs can cause system 
performance problems or be used for malicious means. 

The FortiGate unit scans for known grayware executable programs in each category 
you enable. The category list and contents are added or updated whenever your 
FortiGate unit receives a virus update package. New categories may be added at any 
time and will be loaded with the virus updates. By default, all new categories are 
disabled. Grayware is enabled in a protection profile when Virus Scan is enabled.

Grayware categories are populated with known executable files. Each time the 
FortiGate unit receives a virus and attack definitions update, the grayware categories 
and contents are updated.

The categories may change or expand when the FortiGate unit receives updates. In 
the example above you can choose to enable the following grayware categories. 
Enabling a grayware category blocks all files listed in the category.

Select enable to block adware programs. Adware is usually embedded 

in freeware programs and causes ads to pop up whenever the program 

is opened or used.

Select enable to block dialer programs. Dialers allow others to use the 

PC modem to call premium numbers or make long distance calls.

Select enable to block games. Games are usually joke or nuisance 

games that you may want to block from network users.

Select enable to block joke programs. Joke programs can include 

custom cursors and programs that appear to affect the system.