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These settings will apply to all Web access rules unless explicitly overridden.Administrators can override the general malware inspection settings on a per-rule Web Access Policy rule basis.Overview of Malware Inspection Malware Inspection is a new feature of Forefront TMG 2010 that scans web pages for viruses, malware, and other threats.Web traffic may contain malware such as worms, viruses, and spyware.In the Forefront TMG, first we should enable malware inspection globally, and then on a per-rule basis.To enable malware inspection in Forefront TMG, we must: Global malware inspection settings are configured by clicking the Configure Malware Inspection task under Policy Editing Tasks in the Web Access Policy.On the Malware Inspection dialog box, Click the Destination Exceptions Tab, then click Sites Exempt from Malware Inspection and Click Edit Tab.When malware inspection is enabled, downloaded Web pages and files allowed by access rules may be inspected for malware. Malware Inspection uses the Microsoft Antivirus (MSAV) engine, which provides highly accurate malware detection with the same world-class engine that is used by Microsoft Security Essentials and Microsoft Forefront products.
For instance, the administrator can define that a specific set of users will be able to download larger files. In the Forefront TMG Management Console, in the tree, click Web Access Policy. In the Task tab, click Configure Malware Inspection. Ensure that Enable malware inspection is selected, and then select Block traffic in relevant rules until the download completes.(This ensures that if the malware inspection engine has not yet acquired a malware definition file, the default action is to block any Access Rules that have malware inspection enabled) 4.This adds another layer of security over simply relying upon the client Antivirus to provide protection.The core advantages of inspecting traffic against malware at the gateway are: So this helps employees to safely and productively use the Internet without worrying about malware and other threats even their workstations are unmanaged.
Forefront TMG automatically checks for and downloads new and updated definitions for malware inspection, according to a user-defined updating schedule.The main purpose of the gateway malware inspection feature in Forefront TMG 2010 is to inspect Web traffic on the gateway level to prevent any viruses, worms, Trojan horses, spyware, rootkits and other threats from infecting the computers located inside the organization.