F-SECURE ANTI-VIRUS - FOR MICROSOFT EXCHANGE Administrator's Manual

Category
Antivirus security software
Type
Administrator's Manual

This manual is also suitable for

F-Secure Anti-Virus for
Microsoft Exchange
Administrators Guide
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“Artistic License”.
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3
Contents
About This Guide 9
How This Guide Is Organized ............................................................................................ 10
Conventions Used in F-Secure Guides.............................................................................. 12
Symbols .................................................................................................................... 12
Chapter 1 Introduction 14
1.1 Overview....................................................................................................................15
1.2 How F-Secure Anti-Virus for Microsoft Exchange Works...........................................16
1.3 Key Features..............................................................................................................19
1.4 Scanning Methods .....................................................................................................21
1.5 F-Secure Anti-Virus Mail Server and Gateway Products...........................................22
Chapter 2 Deployment 23
2.1 Installation Modes......................................................................................................24
2.2 Network Requirements...............................................................................................25
2.3 Deployment Scenarios...............................................................................................26
2.3.1 Single Exchange Server (2000/2003/2007)....................................................27
2.3.2 Multiple Exchange 2000/2003 Servers...........................................................28
2.3.3 Multiple Exchange Server 2007 Roles ...........................................................29
2.3.4 Large organization using Exchange 2007......................................................30
2.3.5 Centralized Quarantine Management.............................................................32
Chapter 3 Installation 35
3.1 System Requirements................................................................................................36
4
3.1.1 Installation on Microsoft Exchange Server 2000/2003...................................36
3.1.2 Installation on Microsoft Exchange Server 2007............................................38
3.2 Other System Component Requirements..................................................................40
3.2.1 SQL Server Requirements .............................................................................40
3.2.2 Additional Windows Components...................................................................42
3.2.3 Web Browser Software Requirements ...........................................................43
3.3 Improving Reliability and Performance ......................................................................43
3.4 Centrally Administered or Stand-alone Installation? ..................................................44
3.5 Installation Overview..................................................................................................45
3.6 Installing F-Secure Anti-Virus for Microsoft Exchange...............................................46
3.7 After the Installation ...................................................................................................60
3.7.1 Importing Product MIB files to F-Secure Policy Manager Console.................60
3.7.2 Configuring the Product..................................................................................61
3.8 Upgrading from the Version 6.62...............................................................................63
3.9 Upgrading the Evaluation Version..............................................................................65
3.10 Uninstalling F-Secure Anti-Virus for Microsoft Exchange ..........................................66
Chapter 4 Using F-Secure Anti-Virus for Microsoft Exchange 67
4.1 Administering F-Secure Anti-Virus for Microsoft Exchange .......................................68
4.2 Using Web Console ...................................................................................................69
4.2.1 Logging in for the First Time...........................................................................69
4.2.2 Modifying Settings and Viewing Statistics with Web Console........................71
4.2.3 Checking the Product Status .........................................................................72
4.3 Using F-Secure Policy Manager Console ..................................................................72
4.3.1 Modifying Settings and Viewing Statistics in Centrally Administered Mode ...72
Chapter 5 Centrally Managed Administration 75
5.1 Overview....................................................................................................................76
5.2 F-Secure Anti-Virus for Microsoft Exchange Settings................................................76
5.2.1 General Settings.............................................................................................76
5.2.2 Transport Protection.......................................................................................84
5.2.3 Storage Protection..........................................................................................99
5.3 F-Secure Anti-Virus for Microsoft Exchange Statistics.............................................126
5.3.1 Common.......................................................................................................127
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5.3.2 Transport Protection.....................................................................................128
5.3.3 Storage Protection........................................................................................129
5.3.4 Quarantine....................................................................................................132
5.4 F-Secure Content Scanner Server Settings.............................................................132
5.4.1 Interface........................................................................................................133
5.4.2 Virus Scanning .............................................................................................134
5.4.3 Virus Statistics..............................................................................................136
5.4.4 Database Updates........................................................................................138
5.4.5 Spam Filtering ..............................................................................................138
5.4.6 Threat Detection Engine...............................................................................139
5.4.7 Proxy Configuration......................................................................................140
5.4.8 Advanced......................................................................................................141
5.5 F-Secure Content Scanner Server Statistics ...........................................................142
5.5.1 Server...........................................................................................................142
5.5.2 Scan Engines ...............................................................................................143
5.5.3 Common.......................................................................................................144
5.5.4 Spam Control................................................................................................144
5.5.5 Virus Statistics..............................................................................................145
5.6 F-Secure Management Agent Settings....................................................................145
5.7 F-Secure Automatic Update Agent Settings ............................................................147
Chapter 6 Administration with Web Console 149
6.1 Overview..................................................................................................................150
6.2 Home........................................................................................................................150
6.3 Transport Protection.................................................................................................155
6.3.1 Attachment Filtering......................................................................................158
6.3.2 Virus Scanning .............................................................................................161
6.3.3 Grayware Scanning......................................................................................165
6.3.4 Archive Processing.......................................................................................168
6.3.5 Content Filtering ..........................................................................................172
6.3.6 Security Options...........................................................................................175
6.4 Storage Protection ...................................................................................................179
6.4.1 Real-Time Scanning.....................................................................................181
6.4.2 Manual Scanning .........................................................................................191
6.4.3 Scheduled Scanning ....................................................................................204
6.5 Spam Control...........................................................................................................216
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6.6 Quarantine ...............................................................................................................218
6.6.1 Query............................................................................................................220
6.6.2 Options.........................................................................................................220
6.7 Automatic Updates...................................................................................................228
6.7.1 Communications...........................................................................................231
6.8 Content Scanner Server...........................................................................................235
6.8.1 Options.........................................................................................................236
6.9 Server Properties.....................................................................................................246
6.9.1 Network Configuration .................................................................................247
6.9.2 Administration...............................................................................................249
6.9.3 Notifications..................................................................................................254
6.9.4 Lists and Templates .....................................................................................255
6.9.5 Sample Submission......................................................................................259
Chapter 7 Quarantine Management 261
7.1 Introduction ..............................................................................................................262
7.1.1 Quarantine Reasons.....................................................................................263
7.2 Configuring Quarantine Options...............................................................................264
7.3 Quarantine Status ....................................................................................................264
7.3.1 Quarantine Logging......................................................................................264
7.4 Searching the Quarantined Content.........................................................................264
7.5 Query Results Page.................................................................................................269
7.5.1 Viewing Details of the Quarantined Message ..............................................270
7.6 Quarantine Operations.............................................................................................271
7.6.1 Reprocessing the Quarantined Content.......................................................273
7.6.2 Releasing the Quarantined Content.............................................................274
7.6.3 Removing the Quarantined Content.............................................................275
7.6.4 Deleting Old Quarantined Content Automatically.........................................275
7.7 Moving the Quarantine Storage...............................................................................276
Chapter 8 Administering F-Secure Spam Control 278
8.1 Overview..................................................................................................................279
8.2 Spam Control Settings in Centrally Managed Environments ...................................280
8.3 Spam Control Settings in Web Console ..................................................................284
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8.4 Realtime Blackhole List Configuration .....................................................................289
8.4.1 Configuring Realtime Blackhole Lists...........................................................289
8.4.2 Optimizing F-Secure Spam Control Performance........................................291
Chapter 9 Updating Virus and Spam Definition Databases 293
9.1 Overview..................................................................................................................294
9.2 Automatic Updates with F-Secure Automatic Update Agent....................................294
9.3 Configuring Automatic Updates ...............................................................................294
AppendixA Variables in Warning Messages 296
List of Variables................................................................................................................ 297
AppendixB Services and Processes 299
B.1 List of Services and Processes............................................................................... 300
AppendixC Deploying the Product on a Cluster 303
C.1 Installation Overview............................................................................................... 304
C.2 Creating Quarantine Storage...................................................................................305
C.2.1 Quarantine Storage in Active-Passive Cluster .............................................305
C.2.2 Quarantine Storage in Active-Active Cluster................................................310
C.2.3 Creating the Quarantine Storage for a Single Copy Cluster Environment ...312
C.2.4 Creating the Quarantine Storage for a Continuous Cluster Replication Environ-
ment..............................................................................................................319
C.3 Installing the Product................................................................................................323
C.3.1 Installing on Active-Passive Cluster .............................................................323
C.3.2 Installing on Active-Active Cluster................................................................325
C.4 Administering the Cluster Installation with F-Secure Policy Manager......................328
C.5 Using the Quarantine in the Cluster Installation.......................................................329
C.6 Uninstallation............................................................................................................331
C.7 Troubleshooting .......................................................................................................331
AppendixD Sending E-mail Alerts And Reports 332
D.1 Overview................................................................................................................. 333
D.2 Solution....................................................................................................................333
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D.2.1 Creating a Scoped Receive Connector........................................................334
D.2.2 Grant the Relay Permission on the New Scoped Connector........................335
D.2.3 Specify SMTP Server for Alerts and Reports...............................................335
Chapter E Troubleshooting 336
E.1 Overview..................................................................................................................337
E.2 Starting and Stopping...............................................................................................337
E.3 Viewing the Log File.................................................................................................338
E.4 Common Problems and Solutions............................................................................338
E.4.1 Installing Service Packs................................................................................341
E.4.2 Securing the Quarantine...............................................................................342
E.4.3 Administration Issues ...................................................................................342
E.5 Frequently Asked Questions....................................................................................343
Technical Support 344
F-Secure Online Support Resources ............................................................................... 345
Web Club .........................................................................................................................347
Virus Descriptions on the Web .........................................................................................347
9
ABOUT THIS GUIDE
How This Guide Is Organized.................................................... 10
Conventions Used in F-Secure Guides..................................... 13
10
How This Guide Is Organized
F-Secure Anti-Virus for Microsoft Exchange Administrator's Guide is
divided into the following chapters:
Chapter 1. Introduction. General information about F-Secure Anti-Virus
for Microsoft Exchange and other F-Secure Anti-Virus Mail Server and
Gateway products.
Chapter 2. Deployment. Instructions and examples how to set up your
network environment before you can install F-Secure Anti-Virus for
Microsoft Exchange.
Chapter 3. Installation. Instructions how to install and set up F-Secure
Anti-Virus for Microsoft Exchange.
Chapter 4. Using F-Secure Anti-Virus for Microsoft Exchange.
Instructions how to use and administer F-Secure Anti-Virus for Microsoft
Exchange.
Chapter 5. Centrally Managed Administration. Instructions how to
remotely administer F-Secure Anti-Virus for Microsoft Exchange and
F-Secure Content Scanner Server when they have been installed in
centralized administration mode.
Chapter 6. Administration with Web Console. Instructions how to
administer F-Secure Anti-Virus for Microsoft Exchange with the Web
Console.
Chapter 7. Quarantine Management. Instructions how you can manage
and search quarantined mails with the F-Secure Anti-Virus for Microsoft
Exchange Web Console.
Chapter 9. Updating Virus and Spam Definition Databases. Instructions
how to update your virus definition database.
Chapter 8. Administering F-Secure Spam Control. General information
about and instructions on how to configure F-Secure Spam Control.
Appendix A. Variables in Warning Messages. Lists variables that can
be included in virus warning messages.
About This Guide 11
Appendix B. Services and Processes. Describes services, devices and
processes of F-Secure Anti-Virus for Microsoft Exchange.
Appendix D. Sending E-mail Alerts And Reports. Instructions how to
configure the product to send alerts to the administrator by e-mail.
Chapter E. Troubleshooting. Solutions to some common problems.
Technical Support. Contains the contact information for assistance.
About F-Secure Corporation. Describes the company background and
products.
See the F-Secure Policy Manager Administrator's Guide for detailed
information about installing and using the F-Secure Policy Manager
components:
F-Secure Policy Manager Console, the tool for remote
administration of F-Secure Anti-Virus for Microsoft Exchange.
F-Secure Policy Manager Server, which enables communication
between F-Secure Policy Manager Console and the managed
systems.
12
Conventions Used in F-Secure Guides
This section describes the symbols, fonts, and terminology used in this
manual.
Symbols
An arrow indicates a one-step procedure.
Fonts
Arial bold (blue) is used to refer to menu names and commands, to
buttons and other items in a dialog box.
Arial Italics (blue) is used to refer to other chapters in the manual, book
titles, and titles of other manuals.
Arial Italics (black) is used for file and folder names, for figure and table
captions, and for directory tree names.
Courier New is used for messages on your computer screen.
WARNING: The warning symbol indicates a situation with a
risk of irreversible destruction to data.
IMPORTANT: An exclamation mark provides important information
that you need to consider.
REFERENCE - A book refers you to related information on the
topic available in another document.
l
NOTE - A note provides additional information that you should
consider.
TIP - A tip provides information that can help you perform a task
more quickly or easily.
13
Courier New bold is used for information that you must type.
SMALL CAPS (BLACK) is used for a key or key combination on your
keyboard.
Arial underlined (blue)
is used for user interface links.
Arial italics is used for window and dialog box names.
PDF Document
This manual is provided in PDF (Portable Document Format). The PDF
document can be used for online viewing and printing using Adobe®
Acrobat® Reader. When printing the manual, please print the entire
manual, including the copyright and disclaimer statements.
For More Information
Visit F-Secure at http://www.f-secure.com for documentation, training
courses, downloads, and service and support contacts.
In our constant attempts to improve our documentation, we would
welcome your feedback. If you have any questions, comments, or
suggestions about this or any other F-Secure document, please contact
us at documentation@f-secure.com
.
14
1
INTRODUCTION
Overview..................................................................................... 15
How F-Secure Anti-Virus for Microsoft Exchange Works........... 16
Key Features.............................................................................. 19
Scanning Methods...................................................................... 21
F-Secure Anti-Virus Mail Server and Gateway Products............ 22
CHAPTER 1 15
Introduction
1.1 Overview
Malicious code, such as computer viruses, is one of the main threats for
companies today. In the past, malicious code spread mainly via disks and
the most common viruses were the ones that infected disk boot sectors.
When users began to use office applications with macro capabilities -
such as Microsoft Office - to write documents and distribute them via mail
and groupware servers, macro viruses started spreading rapidly.
After the millennium, the most common spreading mechanism has been
the e-mail. Today about 90% of viruses arrive via e-mail. E-mails provide
a very fast and efficient way for viruses to spread themselves without any
user intervention and that is why e-mail worm outbreaks, like Sober,
Netsky and Bagle, have caused a lot of damage around the world.
F-Secure Anti-Virus Mail Server and Gateway products are designed to
protect your company's mail and groupware servers and to shield the
company network from any malicious code that travels in HTTP or SMTP
traffic. In addition, they protect your company network against spam. The
protection can be implemented on the gateway level to screen all
incoming and outgoing e-mail (SMTP), web surfing (HTTP and
FTP-over-HTTP) and file transfer (FTP) traffic. Furthermore, it can be
implemented on the mail server level so that it does not only protect
inbound and outbound traffic but also internal mail traffic and public
sources, such as public folders on Microsoft Exchange servers.
Providing the protection already on the gateway level has plenty of
advantages. The protection is easy and fast to set up and install,
compared to rolling out antivirus protection on hundreds or thousands of
workstations. The protection is also invisible to the end users which
ensures that the system cannot be by-passed and makes it easy to
maintain. Of course, protecting the gateway level alone is not enough to
provide a complete antivirus solution; file server and workstation level
protection is needed, also.
Why clean 1000 workstations when you can clean one attachment at the
gateway level?
16
1.2 How F-Secure Anti-Virus for Microsoft Exchange
Works
F-Secure Anti-Virus for Microsoft Exchange is designed to detect and
disinfect viruses and other malicious code from e-mail transmissions
through Microsoft Exchange Server. Scanning is done in real time as the
mail passes through Microsoft Exchange Server. On-demand scanning of
user mailboxes and public folders is also available.
Scanning
Attachments and
Message Bodies
F-Secure Anti-Virus for Microsoft Exchange scans attachments and
message bodies for malicious code. It can also be instructed to remove
particular attachments according to the file name or the file extension.
If the intercepted mail contains malicious code, F-Secure Anti-Virus for
Microsoft Exchange can be configured to disinfect or drop the content.
Any malicious code found during the scan process can be placed in the
Quarantine, where it can be further examined. Stripped attachments can
also be placed in the Quarantine for further examination.
Flexible and Scalable
Anti-Virus Protection
F-Secure Anti-Virus for Microsoft Exchange is installed on Microsoft
Exchange Server and it intercepts mail traveling to and from mailboxes
and public folders. The messages and documents are scanned with the
scanning component, F-Secure Content Scanner Server, which also
disinfects the infected messages.
Alerting F-Secure Anti-Virus for Microsoft Exchange has extensive alerting
functions, which means that the system administrator can specify a
recipient, such as the network administrator, to be notified about the
infection found in the data content.
Powerful and Always
Up-to-date
F-Secure Anti-Virus for Microsoft Exchange uses the award-winning
F-Secure Anti-Virus techniques and scanning engines to ensure the
highest possible detection rate and disinfection capability. The F-Secure
Anti-Virus definition databases are updated typically multiple times a day
and they provide F-Secure Anti-Virus for Microsoft Exchange an always
up-to-date protection capability.
CHAPTER 1 17
Introduction
F-Secure Anti-Virus scanner consistently ranks at the top when compared
to competing products. Our team of dedicated virus researchers is on call
24-hours a day responding to new and emerging threats. In fact,
F-Secure is one of the only companies to release tested virus definition
updates continuously, to make sure our customers are receiving the
highest quality service and protection.
Virus and Spam
Outbreak Detection
Massive spam and virus outbreaks consist of millions of messages which
share at least one identifiable pattern that can be used to distinguish the
outbreak. Any message that contains one or more of these patterns can
be assumed to be a part of the same spam or virus outbreak.
F-Secure Anti-Virus for Microsoft Exchange can identify these patterns
from the message envelope, headers and body, in any language,
message format and encoding type. It can detect spam messages and
new viruses during the first minutes of the outbreak.
Stand-alone and
Centralized
Administration Modes
F-Secure Anti-Virus for Microsoft Exchange can be installed either in
stand-alone or centrally administered mode. Depending on how it has
been installed, F-Secure Anti-Virus for Microsoft Exchange is managed
either with the F-Secure Anti-Virus for Microsoft Exchange Web Console
or F-Secure Policy Manager.
Scalability and
Reliability
F-Secure Policy Manager provides a scalable way to manage the security
of multiple applications on multiple operating systems, from one central
location. F-Secure Policy Manager is comprised of two components,
F-Secure Policy Manager Console and F-Secure Policy Manager Server,
which are used to administer applications. They are seamlessly
integrated with the F-Secure Management Agents that handle all
management functions on local hosts.
Easy to
Administer
If F-Secure Anti-Virus for Microsoft Exchange is installed in stand-alone
mode it can be managed with the web-based user interface.
If F-Secure Anti-Virus for Microsoft Exchange has been installed in
centrally administered configuration, it is managed with F-Secure Policy
Manager. With its graphical user interface, F-Secure Policy Manager
Console provides a centralized view of the domains and hosts in your
network, lets you configure the security policies for all F-Secure
18
components and set up scheduled scans and run manual scanning
operations. F-Secure Policy Manager receives status information from
F-Secure Anti-Virus for Microsoft Exchange.
F-Secure Policy Manager Server is the server side component that
handles communication between F-Secure Anti-Virus for Microsoft
Exchange and F-Secure Policy Manager Console. It exchanges security
policies, software updates, status information, statistics, alerts, and other
information between F-Secure Policy Manager Console and all managed
systems.
Figure 1-1 (1) E-mail arrives from the Internet to F-Secure Anti-Virus for Microsoft
Exchange, which (2) filters malicious content from mails and attachments, and (3)
delivers cleaned files forward.
CHAPTER 1 19
Introduction
1.3 Key Features
F-Secure Anti-Virus for Microsoft Exchange provides the following
features and capabilities.
Superior Protection Superior detection rate with multiple scanning engines.
Automatic malicious code detection and disinfection.
The grayware scan detects spyware, adware, dialers, joke
programs, remote access tools, and any other unwelcome files
and programs.
Heuristic scanning detects also unknown Windows and macro
viruses.
Recursive scanning of ARJ, BZ2, CAB, GZ, JAR, LZH, MSI,
RAR, TAR, TGZ, Z and ZIP archive files.
Automatic and consistent virus definition database updates.
Suspicious and unsafe attachments can be stripped away from
e-mails.
Password protected archives can be treated as unsafe.
Intelligent file type recognition.
Virus Outbreak
Detection
The virus outbreak detection is an additional active layer of
protection that automatically detects virus outbreaks and
quarantines suspicious messages.
Virus outbreaks are transparently detected and infected
messages are quarantined before the outbreak becomes
widespread.
Quarantined unsafe messages can be reprocessed
automatically.
20
Transparency and
Scalability
Viruses are intercepted before they can enter the network and
spread out on workstations and servers.
Real-time scanning of internal, inbound and outbound mail
messages and public folder notes.
Automatic protection of new mailboxes and public folders.
Total transparency to end-users. Users cannot bypass the
system, which means that messages and documents cannot be
exchanged without scanning.
Management Controlling and monitoring the behavior of the products remotely.
Starting predefined operations remotely.
Monitoring statistics provided by the products remotely with
F-Secure Policy Manager or F-Secure Anti-Virus for Microsoft
Exchange Web Console.
Possibility to configure and manage stand-alone installations with
the convenient F-Secure Anti-Virus for Microsoft Exchange Web
Console.
You can manage and search quarantined content with the
F-Secure Anti-Virus for Microsoft Exchange Web Console.
Protection against
Spam
Possible spam messages are transparently detected before they
become widespread.
Efficient spam detection based on different analyses on the
e-mail content.
Multiple filtering mechanisms guarantee the high accuracy of
spam detection.
Spam messages can be separated from legitimate messages and
processed using the Spam Confidence Levels.
Spam detection works in every language and message format.
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F-SECURE ANTI-VIRUS - FOR MICROSOFT EXCHANGE Administrator's Manual

Category
Antivirus security software
Type
Administrator's Manual
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