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Barracuda NextGen Firewall X

This Firmware Version Is End-Of-Support

As of December 1st, 2018, all new sales for Barracuda NextGen Firewall X Series products have ceased. Only renewals of software and hardware subscriptions for a maximum of one year are available for a limited time. December 1st 2019: All Barracuda Firewall X-Series sales will cease; neither new sales nor any renewals will be available. If you currently hold a maintenance and support contract, you will continue to receive our award-winning support and services until your contract expires, or until the End of Live definition as described in the End of Support and End of Life Information.

Virus Protection in the Firewall

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The Barracuda NextGen Firewall X-Series can transparently scan HTTP, HTTPS, FTP, SMTP, and SMTPS traffic for malware. For in-depth scanning of more advanced malware for which there are no virus scanner patterns available, the X-Series Firewall can also scan traffic using Advanced Threat Detection. The following subscriptions are required to use Virus Scanning and ATP in the firewall:

  • Energize Updates – Needed for virus scanner pattern updates.
  • Web Security – Required for the virus scanning service.
  • Advanced Threat Protection – This subscription is required to use ATP.

Virus protection for web traffic

To scan HTTP and HTTPS traffic for malware, configure an access rule to match your web traffic and enable Application Control, SSL Inspection (optional), and Virus Protection. If malware is detected, the file is discarded and the user is redirected to a customizable block page. SSL-encrypted HTTP and SMTP connections can be scanned only if SSL Inspection is enabled.  

For more information, see How to Configure Virus Protection in the Firewall for Web Traffic.

Virus protection for FTP

To scan FTP traffic for malware, configure an access rule to match your web traffic and enable Application Control and Virus Protection. Since the FTP protocol does not include MIME-type information, all files are scanned. If malware is detected, the file is discarded and the file transfer is terminated. When malware in a FTP transfer is found, a local file is created by the FTP client before the transfer starts, so the user may see a file with 0 bytes or a small, partially downloaded file. 

For more information, see How to Configure Virus Scanning in the Firewall for FTP Traffic.

Virus protection for mail traffic

The X-Series can scan incoming and outgoing SMTP and SMTPS mail traffic. To scan mail traffic, you must configure mail security in the firewall.

For more information, see Mail Security in the Firewall.

Advanced Threat Protection (ATP)

ATP scans HTTP, HTTPS, FTP, SMTP and SMTPS traffic for advanced malware on a per-access-rule basis. Malicious files are treated according to configurable policies. When malware is detected in HTTP and FTP traffic, the user/IP address who downloaded the malware is placed in quarantine. To use ATP you must have an Energize Updates, Web Security and Advanced Threat Protection subscription.

For more information, see Advanced Threat Protection (ATP/ATD).

Default MIME types

Only the MIME types listed in the Virus Protection configuration are scanned. The X-Series Firewall comes with a preconfigured list of MIME types:

application/zip
application/x-msdos-program
application/x-zoo
application/mac-binhex40
application/x-apple-diskimage
application/x-tar
application/x-bzip2
application/x-archive
application/x-rpm
application/x-gzip
application/x-rar
application/rar
application/x-gtar
application/x-7z-compressed
application/x-stuffit
application/x-iso9660-image
application/x-dosexec
application/x-msdownload
application/x-msdos-windows
application/x-download
application/bat
application/x-bat
application/com
application/x-com
application/exe
application/x-exe
application/x-winexe
application/x-winhlp
application/x-winhelp
application/x-javascript
application/hta
application/x-silverlight-app
application/x-ms-application
application/x-ms-shortcut
application/octet-stream
application/pdf
application/x-pdf
application/vnd.android.package-archive
application/vnd.ms-word.document.macroenabled.12
application/vnd.ms-word.template.macroenabled.12
application/vnd.ms-excel
application/vnd.ms-excel.addin.macroenabled.12
application/vnd.ms-excel.sheet.binary.macroenabled.12
application/vnd.ms-excel.template.macroenabled.12
application/vnd.ms-excel.sheet.macroenabled.12
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint.addin.macroenabled.12
application/vnd.ms-powerpoint.slide.macroenabled.12
application/vnd.ms-powerpoint.presentation.macroenabled.12
application/vnd.ms-powerpoint.slideshow.macroenabled.12
application/vnd.ms-project
application/x-mspublisher
application/x-msaccess
application/x-msschedule
application/msword
application/onenote
application/vnd.visio
application/vnd.ms-works
application/vnd.openxmlformats-officedocument.presentationml.presentation
application/vnd.openxmlformats-officedocument.presentationml.slide
application/vnd.openxmlformats-officedocument.presentationml.slideshow
application/vnd.openxmlformats-officedocument.presentationml.template
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
application/vnd.openxmlformats-officedocument.spreadsheetml.template
application/vnd.openxmlformats-officedocument.wordprocessingml.document
application/vnd.openxmlformats-officedocument.wordprocessingml.template
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