Using FortiSandbox antivirus inspection

6.4.2

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Using FortiSandbox antivirus inspection

The FortiSandbox appliance and FortiSandbox cloud service are used for automated sample tracking, or sandboxing. You can send suspicious email attachments to FortiSandbox for inspection when you configure antivirus profiles (see Managing antivirus profiles). If the file exhibits risky behavior, or is found to contain a virus, the result will be sent back to FortiMail and a new virus signature is created and added to the FortiGuard antivirus signature database as well.

If email attachments are sent to FortiSandbox, and the "reject" action is configured in the action profile, the actual action will fallback to "system quarantine" if spam or viruses are detected afterward.

To add a FortiSandbox unit

Go to System > FortiSandbox > FortiSandbox.
Enable the FortiSandbox Inspection and configure the following settings:

GUI item	Description
FortiSandbox type	If you use an appliance, specify the appliance’s host name or IP address; If you use the cloud service, see FortiCloud service.
Server name/IP	Enter the FortiSandbox host name or IP address. The port to use is 514. If you have a firewall in between FortiMail and FortiSandbox, make this port is allowed.
Notification email	This is the email address that FortiSandbox will use to send out notifications and reports. If you want to receive such email, enter your email address. For details, see the FortiSandbox documentation.
Statistics interval	Specify how long FortiMail should wait to retrieve some high level statistics from FortiSandbox. The default interval is 5 minutes. The statistics include how many malwares are detected and how many files are clean among all the files submitted.
Scan timeout	Specify how long FortiMail will wait to get the scan results. If you receive timeouts and want to wait longer for the results, you can increase the timeout.
Scan result expires in	Specify how long FortiMail will cache the results.
File Scan Setting
File types	Select what types of attachment files will be uploaded to FortiSandbox for scanning.
File patterns	Create your own file pattern that will be uploaded to FortiSandbox, for example, *.txt.
File size	Specify the maximum file size to upload to FortiSandbox. You may want to limit the file size to improve performance.
URL Scan Setting
Enable	Enable to scan the URLs to determine if they are malicious or phishing sites. Note: If you do not want to send any URLs to FortiSandbox, you can do so by adding them to the URL exempt list. For details, see Configuring the FortiGuard URL filter.
Email selection	Specify to scan URLs in all email or the suspicious email only. Suspicious email messages are those received during spam outbreaks.
URL selection	Specify to scan all URLs or the unrated URLs only. The unrated URLs are the URLs that are tagged as unrated by the FortiGuard antispam service.
Upload URL on rating error	Sometimes, FortiMail may not be able to get results from the FortiGuard queries (for example, ratings errors due to network connection failures). In this case, you can choose whether to upload those URLs to FortiSandbox for scanning. Choosing not to upload those URLs may help improving the FortiSandbox performance.
Number of URLs per email	Specify how many URLs will be scanned in one email message.

FortiCloud service

If you purchased the FortiCloud service, or FortiSandbox cloud service, you can use the FortiSandbox antivirus service without owning your own FortiSandbox appliances.

To use the FortiCloud service

Go to Dashboard > Status.
Under License Information, click Activate besides FortiCloud.
In the popup dialog box, enter the email address and password for the FortiCloud account.
Click OK to log on to FortiCloud.

Now the License Information should display as Paid Contract (if you use a demo unit, it displays as Trial License).

Go to System > FortiSandbox > FortiSandbox and select Cloud for FortiSanbox type in the FortiSandbox Setting. Also configure other scan settings (see Using FortiSandbox antivirus inspection).
After you activate FortiCloud and configure the FortiSandbox scan settings, you can access the FortiCloud web portal by going to Dashboard > Status and clicking Launch Portal besides FortiCloud under License Information.

The portal allows you view the FortiMail file submission status and FortiSandbox cloud scan results.

If you upgrade from older releases, a reminder will appear on the dashboard, telling you to activate FortiCloud (that is, to create an FortiCloud account) before you can access the FortiCloud portal.

License information after upgrading from older releases

If you are running FortiMail HA, you must activate FortiCloud service on the primary and secondary units. For active-passive HA, this is to ensure that the secondary unit can continue to use the FortiCloud service in case of HA failover. For config-only HA, this is because all the units need to access the service.

Using FortiSandbox antivirus inspection

To add a FortiSandbox unit

Go to System > FortiSandbox > FortiSandbox.
Enable the FortiSandbox Inspection and configure the following settings:

GUI item	Description
FortiSandbox type	If you use an appliance, specify the appliance’s host name or IP address; If you use the cloud service, see FortiCloud service.
Server name/IP	Enter the FortiSandbox host name or IP address. The port to use is 514. If you have a firewall in between FortiMail and FortiSandbox, make this port is allowed.
Notification email	This is the email address that FortiSandbox will use to send out notifications and reports. If you want to receive such email, enter your email address. For details, see the FortiSandbox documentation.
Statistics interval	Specify how long FortiMail should wait to retrieve some high level statistics from FortiSandbox. The default interval is 5 minutes. The statistics include how many malwares are detected and how many files are clean among all the files submitted.
Scan timeout	Specify how long FortiMail will wait to get the scan results. If you receive timeouts and want to wait longer for the results, you can increase the timeout.
Scan result expires in	Specify how long FortiMail will cache the results.
File Scan Setting
File types	Select what types of attachment files will be uploaded to FortiSandbox for scanning.
File patterns	Create your own file pattern that will be uploaded to FortiSandbox, for example, *.txt.
File size	Specify the maximum file size to upload to FortiSandbox. You may want to limit the file size to improve performance.
URL Scan Setting
Enable	Enable to scan the URLs to determine if they are malicious or phishing sites. Note: If you do not want to send any URLs to FortiSandbox, you can do so by adding them to the URL exempt list. For details, see Configuring the FortiGuard URL filter.
Email selection	Specify to scan URLs in all email or the suspicious email only. Suspicious email messages are those received during spam outbreaks.
URL selection	Specify to scan all URLs or the unrated URLs only. The unrated URLs are the URLs that are tagged as unrated by the FortiGuard antispam service.
Upload URL on rating error	Sometimes, FortiMail may not be able to get results from the FortiGuard queries (for example, ratings errors due to network connection failures). In this case, you can choose whether to upload those URLs to FortiSandbox for scanning. Choosing not to upload those URLs may help improving the FortiSandbox performance.
Number of URLs per email	Specify how many URLs will be scanned in one email message.

FortiCloud service

If you purchased the FortiCloud service, or FortiSandbox cloud service, you can use the FortiSandbox antivirus service without owning your own FortiSandbox appliances.

To use the FortiCloud service

Go to Dashboard > Status.
Under License Information, click Activate besides FortiCloud.
In the popup dialog box, enter the email address and password for the FortiCloud account.
Click OK to log on to FortiCloud.

Now the License Information should display as Paid Contract (if you use a demo unit, it displays as Trial License).

Go to System > FortiSandbox > FortiSandbox and select Cloud for FortiSanbox type in the FortiSandbox Setting. Also configure other scan settings (see Using FortiSandbox antivirus inspection).
After you activate FortiCloud and configure the FortiSandbox scan settings, you can access the FortiCloud web portal by going to Dashboard > Status and clicking Launch Portal besides FortiCloud under License Information.

The portal allows you view the FortiMail file submission status and FortiSandbox cloud scan results.

If you upgrade from older releases, a reminder will appear on the dashboard, telling you to activate FortiCloud (that is, to create an FortiCloud account) before you can access the FortiCloud portal.