Internal Antivirus Http Webmail Settings Overview; Antivirus Scanner Settings Overview - Juniper NETWORK AND SECURITY MANAGER 2010.4 - CONFIGURING SCREENOS DEVICES GUIDE REV 01 Manual
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Internal Antivirus HTTP Webmail Settings Overview
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Antivirus Scanner Settings Overview
Copyright © 2010, Juniper Networks, Inc.
External Antivirus Scanner Settings Overview on page 177
You can configure the internal AV scanner to scan Webmail responses from a Web server
to a client. When a client makes an HTTP Webmail request, the security device can
intercept the Web Server response, scan the response for viruses, and then forward to
the client.
Because networks typically handle a large amount of HTTP traffic, you might want to
enable scanning for Webmail only. When enabled, the internal AV scanner scans HTTP
traffic for Webmail only (non-Webmail HTTP traffic is not scanned). When disabled, the
device scans all HTTP traffic for viruses.
The internal AV scanner examines specific HTTP Webmail patterns only (many popular
providers are predefined). To configure Webmail scanning, you must define the URL
parameters:
URL Pattern—Specifies a URL pattern identifying a certain type of Webmail to examine
for virus patterns. When the URL matches all of the following parameters, the AV
scanner performs a virus scan.
Path in URL—Specifies the download URL path for the Webmail.
Path Exclusion—Excludes the listed path from scans. Supported in ScreenOS 5.3 and
later.
Argument in URL—Specifies the URL argument. Arguments begin with a question mark
(?).
Argument Exclusion—Excludes the listed argument from scans. Supported in ScreenOS
5.3 and later.
Host Name in URL—Specifies the host name in the URL.
Host Exclusion—Excludes the listed host from scans. Supported in ScreenOS 5.3 and
later.
For more information about AV, refer to the Concepts & Examples ScreenOS Reference
Guide: Attack Detection and Defense Mechanisms.
Antivirus Scanner Settings Overview on page 181
Classification of Deep Inspection Methods on page 183
Internal Antivirus Scan Manager Settings Overview on page 178
The third tab in the device-specific or template-specific antivirus settings is the AV
Scanner Settings tab. Table 42 on page 182 describes the antivirus scanner settings
available:
Chapter 6: Security
181
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