FortiGuard outbreak prevention

FortiGuard Virus Outbreak Protection Service (VOS) allows the FortiGate antivirus database to be subsidized with third-party malware hash signatures curated by FortiGuard. The hash signatures are obtained from FortiGuard's Global Threat Intelligence database. The antivirus database queries FortiGuard with the hash of a scanned file. If FortiGuard returns a match, the scanned file is deemed to be malicious. Enabling the AV engine scan is not required to use this feature.

FortiGuard VOS can be used in both proxy-based and flow-based policy inspections across all supported protocols.

The FortiGate must be registered with a valid FortiGuard outbreak prevention license.

To verify FortiGuard antivirus license information:

1. Go to System > FortiGuard and locate the Outbreak Prevention section in the table.

   

2. See the instructions in the video, How to Purchase or Renew FortiGuard Services, if required.

To enable FortiGuard outbreak prevention:

1. Go to Security Profiles > AntiVirus.
2. Edit an antivirus profile, or create a new one.
3. Under Virus Outbreak Protection, enable Use FortiGuard outbreak prevention database.
4. Click OK.

To verify FortiGuard antivirus license information:

# diagnose debug rating
Locale       : english

Service      : Web-filter
Status       : Enable
License      : Contract

Service      : Antispam
Status       : Disable

Service      : Virus Outbreak Prevention
Status       : Enable
License      : Contract

-=- Server List (Tue Feb 19 16:36:15 2019) -=-

IP                     Weight    RTT Flags  TZ    Packets  Curr Lost Total Lost             Updated Time
192.168.100.185          -218      2 DI     -8        113          0          0 Tue Feb 19 16:35:55 2019

To enable all scanunit debug categories:

# diagnose sys scanunit debug all
Set meta-category: all(0xffffffff)
Enabled categories(0xffffffff): daemon job quarantine analytics outbreak-prevention dlp antispam file-filter

# diagnose debug enable
# su 4739 open
su 4739 req vfid 1 id 1 ep 0 new request, size 313, policy id 1, policy type 0
su 4739 req vfid 1 id 1 ep 0 received; ack 1, data type: 0
su 4739 job 1 request info:
su 4739 job 1   client 10.1.100.11:39412 server 172.16.200.44:80
su 4739 job 1   object_name 'zhvo_test.com'
su 4739 file-typing NOT WANTED options 0x0 file_filter no
su 4739 enable databases 0b (core mmdb extended)
su 4739 job 1 begin http scan
su 4739 scan file 'zhvo_test.com' bytes 68
su 4739 job 1 outbreak-prevention scan, level 0, filename 'zhvo_test.com'
su 4739 scan result 0
su 4739 job 1 end http scan
su 4739 job 1 inc pending tasks (1)
su 4739 not wanted for analytics: analytics submission is disabled (m 0 r 0)
su 4739 job 1 suspend
su 4739 outbreak-prevention recv error
su 4739 ftgd avquery id 0 status 1
su 4739 job 1 outbreak-prevention infected entryid=0
su 4739 report AVQUERY infection priority 1
su 4739 insert infection AVQUERY SUCCEEDED loc (nil) off 0 sz 0 at index 0 total infections 1 error 0
su 4739 job 1 dec pending tasks 0
su 4739 job 1 send result
su 4739 job 1 close
su 4739 outbreak-prevention recv error