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In this section:

Table of Contents

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Warning

This page does not apply to

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Cloud link units featuring the Microsoft^® Cloud Connector Edition application and Intel® Xeon® CPUs, because Microsoft defines alternative procedures to protect against malware.

Overview

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recommends the deployment of an approved third party anti-malware solution to

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ASMs with SBA (Applications Solutions Modules running the Skype for Business/Lync 2013 Survivable Branch Appliance application) units as an added measure of security to inspect and “cleanse” devices of viruses and ransomware, such as the 2017 WannaCry https://en.wikipedia.org/wiki/WannaCry_ransomware_attack and Petya attacks.

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approves the following Antivirus and Ransomware protection software for any

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or

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unit with an Applications Solutions Module shipped with a Microsoft® Skype for Business/Lync Survivable Branch Appliance (SBA) application.

Sophos^® Server Protection for Virtualization, Windows and Linux
Sophos Endpoint Exploit Prevention

Note that these are Sophos marketing titles. Depending on the country and partner/reseller, the orderable product names may differ. For example, one partner website shows the product names as Sophos Server Protection for Windows, Linux and vShield.

Sophos antimalware software contains a Management Interface (Console+Server+Update Manager) that runs in a separate Windows Server and Antivirus (Agent) software that runs in the ASM/SBA.

Prerequisites

Info
We recommend running the Management Interface and Antivirus separately to conserve CPU processing in ASM/SBA.

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requires a separate off-board server (distinct and separate from the
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ASM) to be the execution platform of the Sophos Management Interface. This deployment model provides the following benefits:
- A single management interface can manage multiple
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  's with the SBA.
- The Sophos Agent minimizes the extra processing load on the
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  's ASM.

Warning

The deployment of the Sophos management interface on the

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ASM is not supported

Server is reachable to the ASM node, and ready to manage the antivirus installation.

This document assumes installation on the ASM/SBA running on Windows Server 2008 R2 and Windows Server 2012 R2.

Supported Versions

Caption0Table1

Supported Versions

Name	Version	Supported
Sophos AutoUpdate	5.7.220	Sophos Limited
Sophos Remote Management System	4.1.0	Sophos Limited
Sophos Anti-Virus	10.7.2.49	Sophos Limited
HitmanPro.Alert 3 (managed by Sophos)	3.6.5.593
Sophos CryptoGuard	1.0.4.70	Sophos Limited
Sophos System Protection	1.3.1	Sophos Limited
Sophos Endpoint Defense	1.0.0.265	Sophos Limited

Installing the Approved Sophos Anti-Malware Solution to Protect
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With SBAs

Note
You do not need to configure or modify the ASM in order to install Sophos.

Info

icon	false
title	You'll Perform Most of the Install Steps on a 3rd Party Server

The deployment of the approved Sophos anti-malware solution occurs almost entirely on a third party server, and is largely related to configuration settings on the management interface.

For installation instructions not covered in this article, refer to Sophos documentation at https://docs.sophos.com/esg/enterprise-console/tools/deployment_guide/en-us/index.html.

Here are the key steps performed when installing:

Task

Installation Instructions Covered in Sophos
Deployment Guide

Installation Instructions unique to the

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SBAs
covered in this WIKI article

Download the Enterprise Console installer

Check the system requirements

Create the accounts you need

Prepare for installation

Install the Enterprise Console

Download security software

Create computer groups

Set up security policies

Search for computers

Prepare to protect computers

Protect computers

Check the health of your network

Add Exclusions

Activate Exploit Prevention

Protect the ASM

Installation Instructions Unique to the
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SBAs

The following are the steps to protect the

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device with an SBA-targeted ASM:

Activating Exploit Prevention.
Protecting the ASM.

Adding Exclusions (AntiVirus File/Folder Scan Exclusion List)

0Figure1

Create the antivirus and Host Intrusion Prevention System (HIPS) policy with the file and folder exclusions recommended by Microsoft SBA deployments.

Caption

On-Access Scan Settings

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C:\windows\SoftwareDistribution\Datastore\
C:\windows\SoftwareDistribution\Datastore\Logs\
C:\Windows\security\database\*.edb
C:\Windows\security\database\*.sdb
C:\Windows\security\database\*.log
C:\Windows\security\database\*.chk
C:\Windows\security\database\*.jrs
C:\Windows\System32\LogFiles\
C:\Windows\Microsoft.NET\assembly\GAC_MSIL\
C:\UX\PUBLIC\LOGS\
C:\Program Files\Microsoft Lync Server 2010\
C:\Program Files\Microsoft Lync Server 2013\
C:\Program Files\Skype for Business Server 2015\
C:\Program Files\Common Files\Microsoft Lync Server 2010\
C:\Program Files\Common Files\Microsoft Lync Server 2013\
C:\Program Files\Common Files\Skype for Business Server 2015\
C:\Program Files\Microsoft SQL Server\MSSQL11.LYNCLOCAL\MSSQL\Binn\SQLServr.exe
C:\Program Files\Microsoft SQL Server\MSSQL12.LYNCLOCAL\MSSQL\Binn\SQLServr.exe
C:\Program Files\Microsoft SQL Server\MSSQL11.RTCLOCAL\MSSQL\Binn\SQLServr.exe
C:\Program Files\Microsoft SQL Server\MSSQL12.RTCLOCAL\MSSQL\Binn\SQLServr.exe
ABServer.exe
UXSBA.exe
ClsAgent.exe
LysSvc.exe
MediationServerSvc.exe
ReplicaReplicatorAgent.exe
ReplicationApp.exe
RtcHost.exe
RTCSrv.exe
Fabric.exe
FabricDCA.exe
FabricHost.exe

Note that the preceding list of items can be saved in a file using a third party simple text editor and imported into exclusions.

Activating Exploit Prevention

Enter the Exploit Prevention credentials and activate it by performing the following steps:

1

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Select View/Edit Configuration

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0

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Select Features

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Step	Action
1	Open the console and click View and then Update Managers.
Caption
0	Figure
Select Update Managers
2	In the Update managers pane, click the appropriate computer name and then View/Edit Configuration.
Caption
0	Figure
1
3	Click Sources > Edit. When the Source Details dialog box opens, apply the credentials and then click OK.
Caption
Figure
1	Enter Your Credentials
4	In the Sophos Enterprise Console - Protect Computers Wizard, select Exploit Prevention, Sophos Clean and then click Next.
Caption
0	Figure
1

Protecting the ASM

Discover With Active Directory

Image Modified

Discover Computers

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Step	Action
1	Create a group.
2	Add the ASM node into the group. Note: Make sure to choose the Exclusion policy for the group and select Exploit prevent only. This will install the Agent software with Exploit Prevention and also apply the exclusions.caption
0	Figure
1
Caption
0	Figure
1
3	To verify the installation, log on to the ASM node by establishing a Remote Desktop Connection.
4	Find and open the installed Sophos program and then navigate to Configure antivirus > On-access scanning > Exclusion to verify the exclusions you added in Adding Exclusions (AntiVirus File/Folder Scan Exclusion List).
5	Confirm that the Exploit prevention is active on the Agent by viewing its listing on View Product Information.

Sophos Anti-Malware Operation Modes

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borderColor	green
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borderStyle	solid
title	Differences Between Continuous and Full-Scan Operation

Continuous Operation:

Sophos Anti-Malware runs in the background and continuously protects the ASM in real time.
Sophos Anti-Malware contributes a negligible additional load on the CPU. The SBC ASM can be driven to maximum call capacities without regard to the Sophos software.

Full-Scan Operation

Sophos Anti-Malware can perform a complete system scan ("full scan") and the period of the full scan should be initiated according to Sophos instructions
When performing a full scan, Sophos Anti-Malware uses a significant proportion of RAM and CPU resources. Full scans should be scheduled for off-peak periods.

Panel

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title	References

https://www.sophos.com/en-us/support/documentation/enterprise-console.aspx?platform=Version-5-5#Version-5-5

https://docs.sophos.com/esg/enterprise-console/5-5/help/en-us/pdf/sec_55_qsgeng.pdf

https://docs.sophos.com/esg/enterprise-console/5-5/help/en-us/pdf/sec_55_asgeng.pdf

https://www.sophos.com/en-us/medialibrary/PDFs/documentation/sesc_10_ibpgeng.pdf?la=en

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Old Version 1

New Version Current

Key

Overview

Prerequisites

Supported Versions

Installing the Approved Sophos Anti-Malware Solution to Protect
Spacevars
0 longproduct
With SBAs

Installation Instructions Unique to the
Spacevars
0 company
SBAs

Adding Exclusions (AntiVirus File/Folder Scan Exclusion List)

Activating Exploit Prevention

Protecting the ASM

Sophos Anti-Malware Operation Modes

Continuous Operation:

Full-Scan Operation

Space shortcuts

Page tree

Page History

Versions Compared

Old Version 1

New Version Current

Key

Overview

Prerequisites

Supported Versions

Installing the Approved Sophos Anti-Malware Solution to Protect Spacevars0longproduct With SBAs

Installation Instructions Unique to the Spacevars0companySBAs

Adding Exclusions (AntiVirus File/Folder Scan Exclusion List)

Activating Exploit Prevention

Protecting the ASM

Sophos Anti-Malware Operation Modes

Continuous Operation:

Full-Scan Operation

Installing the Approved Sophos Anti-Malware Solution to Protect
Spacevars
0 longproduct
With SBAs

Installation Instructions Unique to the
Spacevars
0 company
SBAs