Description of Microsoft Forefront Threat Management Gateway definition updates

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Article ID: 2160835 - View products that this article applies to.
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INTRODUCTION

Microsoft Forefront Threat Management Gateway 2010 regularly downloads updates to the definition files that are used to identify viruses, malware, and other potentially unwanted software. And, Forefront Threat Management Gateway 2010 regularly updates the Network Inspection System signature files. Forefront Threat Management Gateway 2010 may also periodically download detection engine updates.

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Malware Inspection

The following files are updated as part of the Malware Inspection feature on Forefront Threat Management Gateway 2010:
  • Engine: mpengine.dll
  • Signatures:
    • Base: mpasbase.vdm, mpavbase.vdm
    • Delta: mpasdlta.vdm, mpavdlta.vdm
Those files are located at TMG directory\MPEngine. This directory contains subfolders in which the engine file and the signature files are located. The following registry subkeys contain the location and version of the TMG MPEngine:
  • The current engine subdirectory for MPEngine is defined in the following registry subkey:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\fpc\EmpScanner\CurrentEngineDirectory
  • The version of the MPEngine files is defined in the following registry subkey:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\fpc\EmpScanner\Versions

Network Inspection System (NIS)

The Network Inspection System signature file for TMG uses the following name format:

IPS_Production_Release-Major.Minor.SigSnapshot

An example of this format is as follows:
IPS_Production_Release-4.30.SigSnapshot

Obtaining definition updates

To download the Forefront TMG 2010 definition updates, a customer can use either of the following Microsoft update services:

  • Microsoft Update
  • Window Server Update Services

Properties

Article ID: 2160835 - Last Review: July 22, 2010 - Revision: 1.1
APPLIES TO
  • Microsoft Forefront Threat Management Gateway 2010 Enterprise
  • Microsoft Forefront Threat Management Gateway 2010 Standard
Keywords: 
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