McAfee VLF09E002RAA, VirusScan 10.0 User Manual

User Guide

Version 10.0

Copyright © 2005 McAfee, Inc. All Rights Reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means without the written permission of McAfee, Inc., or its suppliers or affiliate companies.

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LICENSE INFORMATION License Agreement

NOTICE TO ALL USERS: CAREFULLY READ THE APPROPRIATE LEGAL AGREEMENT CORRESPONDING TO THE LICENSE YOU PURCHASED, WHICH SETS FORTH THE GENERAL TERMS AND CONDITIONS FOR THE USE OF THE LICENSED SOFTWARE. IF YOU DO NOT KNOW WHICH TYPE OF LICENSE YOU HAVE ACQUIRED, PLEASE CONSULT THE SALES AND OTHER RELATED LICENSE GRANT OR PURCHASE ORDER DOCUMENTS THAT ACCOMPANIES YOUR SOFTWARE PACKAGING OR THAT YOU HAVE RECEIVED SEPARATELY AS PART OF THE PURCHASE (AS A BOOKLET, A FILE ON THE PRODUCT CD, OR A FILE AVAILABLE ON THE WEB SITE FROM WHICH YOU DOWNLOADED THE SOFTWARE PACKAGE). IF YOU DO NOT AGREE TO ALL OF THE TERMS SET FORTH IN THE AGREEMENT, DO NOT INSTALL THE SOFTWARE. IF APPLICABLE, YOU MAY RETURN THE PRODUCT TO MCAFEE, INC. OR THE PLACE OF PURCHASE FOR A FULL REFUND.

Attributions

This product includes or may include:

 Software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/).  Cryptographic software written by Eric A. Young and

software written by Tim J. Hudson. similar Free Software licenses which, among other rights, permit the user to copy, modify and redistribute certain programs, or portions thereof, and have access to the source code. The GPL requires that for any software covered under the GPL which is distributed to someone in an executable binary format, that the source code also be made available to those users. For any such software covered under the GPL, the source code is made available on this CD. If any Free Software licenses require that McAfee, Inc. provide rights to use, copy or modify a software program that are broader than the rights granted in this agreement, then such rights shall take precedence over the rights and restrictions herein. Software originally written by Henry Spencer, Copyright 1992, 1993, 1994, 1997 Henry Spencer.

Apache Software Foundation (http://www.apache.org/). A copy of the license agreement for this software can be found at www.apache.org/licenses/LICENSE-

 Outside In

Thai Open Source Software Center Ltd. and Clark Cooper, © 1998, 1999, 2000. Software copyrighted by Expat maintainers. Software copyrighted by The Regents of the University of California, © 1989.  Software copyrighted by Gunnar Ritter.  Software copyrighted by Sun Microsystems®, Inc.© 2003.  Software copyrighted by Gisle Aas. © 1995-2003. Software copyrighted by Michael A. Chase, © 1999-2000. Software copyrighted by Neil Winton, © 1995-1996.

Koster, © 1995.  Software copyrighted by Brad Appleton, © 1996-1999.  Software copyrighted by Michael G. Schwern, © 2001.  Software copyrighted by Graham Barr, © 1998.  Software copyrighted by Larry Wall and Clark Cooper, © 1998-2000.  Software copyrighted by Frodo Looijaard, © 1997.  Software copyrighted by the Python Software Foundation, Copyright © 2001, 2002, 2003. A copy of the license agreement for this software can be found at www.python.org.

Notre Dame.  Software copyrighted by Simone Bordet & Marco Cravero, © 2002.  Software copyrighted by Stephen Purcell, © 2001.  Software developed by the Indiana University Extreme! Lab (http://www.extreme.indiana.edu/).  Soft ware copyrighted by International Business Machines Corporation and others, © 1995-2003. Software developed by the University of California, Berkeley and its contributors. Software developed by Ralf S. Engelschall <rse@engelschall.com> for use in the mod_ssl project (http://www.modssl.org/). Software copyrighted by Kevlin Henney, © 2000-2002. Software copyrighted by Peter Dimov and Multi Media Ltd. © 2001, 2002.  Software copyrighted by David Abrahams, © 2001, 2002. See http://www.boost.org/libs/bind/

Boost.org, © 1999-2002.  Software copyrighted by Nicolai M. Josuttis, © 1999.  Software copyrighted by Jeremy Siek, © 1999-2001.  Software copyrighted by Daryle Walker, © 2001. Software copyrighted by Chuck Allison and Jeremy Siek, © 2001, 2002. Software copyrighted by Samuel Krempp, © 2001. See

http://www.boost.org for updates, documentation, and revision history.

copyrighted by Cadenza New Zealand Ltd., © 2000. Software copyrighted by Jens Maurer, © 2000, 2001. Software copyrighted by Jaakko Järvi (jaakko.jarvi@cs.utu.fi), © 1999, 2000.  Software copyrighted by Ronald Garcia, © 2002.  Software copyrighted by David Abrahams, Jeremy Siek, and Daryle Walker, © 1999-2001.

copyrighted by Greg Colvin and Beman Dawes, © 1998, 1999.  Software copyrighted by Peter Dimov, © 2001, 2002.  Software copyrighted by Jeremy Siek and John R. Bandela, © 2001.  Software copyrighted by Joerg Walter and Mathias Koch, © 2000-2002.

 Some software programs that are licensed (or sublicensed) to the user under the GNU General Public License (GPL) or other

Issued July 2005 / McAfee® VirusScan® software version 10.0

Quick Start Card

If you are installing your product from a CD or a Web site, print this convenient reference page.

Are you installing your product from a CD?

Yes

1. Insert your product CD into your CD-ROM drive. If the installation does not start automatically, click your Windows desktop, then click

Start on

Run.

Are you installing your product from a Web site?

Yes

1. Go to the McAfee Web site, and click

My Account.

2. In the Run dialog box, type D:\SETUP.EXE (where D is the letter of your CD-ROM drive).

2. If prompted, enter your subscribing e-mail address and password, then

3. Click OK.

McAfee reserves the right to change Upgrade & Support Plans and policies at any time without notice. McAfee and its

product names are registered trademarks of McAfee, Inc. and/or its affiliates in the US and/or other countries.

click page.

3. Locate your product in the list, and click the download icon.

User Guide iii

Quick Start Card

For more information

To view the User Guides on the product CD, ensure that you have Acrobat Reader installed; if not, install it now from the McAfee product CD.

1 Insert your product CD into your CD-ROM

drive.

2 Open Windows Explorer: Click Start on

your Windows desktop, and click

3 Locate the Manuals folder, and double-click

the User Guide .

PDF you want to open.

Search.

Registration benefits

McAfee recommends that you follow the easy steps within your product to transmit your registration directly to us. Registration ensures that you receive timely and knowledgeable technical assistance, plus the following benefits:

 FREE electronic support  Virus definition (.DAT) file updates for one

year after installation when you purchase VirusScan software

Go to http://www.mcafee.com/ for pricing of an additional year of virus signatures.

 60-day warranty that guarantees

replacement of your software CD if it is defective or damaged

 SpamKiller filter updates for one year after

installation when you purchase SpamKiller software

Go to http://www.mcafee.com/ for pricing of an additional year of filter updates.

 McAfee Internet Security Suite updates for

one year after installation when you purchase MIS software

Go to http://www.mcafee.com/ for pricing of an additional year of content updates.

Technical Support

For technical support, please visit

http://www.mcafeehelp.com/.

Our support site offers 24-hour access to the easy-to-use Answer Wizard for solutions to the most common support questions.

Knowledgeable users can also try our advanced options, which include a Keyword Search and our Help Tree. If a solution cannot be found, you can also access our FREE Chat Now! and E-mail Express! options. Chat and e-mail help you to quickly reach our qualified support engineers through the Internet, at no cost. Otherwise, you can get phone support information at

http://www.mcafeehelp.com/.

iv McAfee® VirusScan® software version 10.0

Contents

Quick Start Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

1 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

New features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Testing VirusScan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Testing ActiveShield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Testing Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Using McAfee SecurityCenter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2 Using McAfee VirusScan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Using ActiveShield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Enabling or disabling ActiveShield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Configuring ActiveShield options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Understanding security alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Manually scanning your computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Manually scanning for viruses and other threats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Automatically scanning for viruses and other threats . . . . . . . . . . . . . . . . . . . . . . . . 29

Understanding threat detections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Managing quarantined files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Creating a Rescue Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Write-protecting a Rescue Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Using a Rescue Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Updating a Rescue Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Automatically reporting viruses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Reporting to the World Virus Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Viewing the World Virus Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Updating VirusScan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Automatically checking for updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Manually checking for updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

User Guide v

Contents

vi McAfee® VirusScan® software version 10.0

Getting Started

Welcome to McAfee VirusScan.

McAfee VirusScan is an anti-virus subscription service offering comprehensive, reliable, and up-to-date virus protection. Powered by award-winning McAfee scanning technology, VirusScan protects against viruses, worms, Trojan horses, suspect scripts, hybrid attacks, and other threats.

With it, you get the following features:

ActiveShield — Scan files when they are accessed by either you or your computer.

Scan — Search for viruses and other threats in hard drives, floppy disks, and

individual files and folders.

Quarantine — Encrypt and temporarily isolate suspect files in the quarantine folder

until an appropriate action can be taken.

Hostile activity detection — Monitor your computer for virus-like activity caused by

worm-like activity and suspect scripts.

New features

This version of VirusScan provides the following new features:

 Spyware and adware detection and removal

VirusScan identifies and removes spyware, adware, and other programs that jeopardize your privacy and slow down your computer performance.

 Daily automatic updates

Daily automatic VirusScan updates protect against the latest identified and unidentified computer threats.

 Fast background scanning

Fast unobtrusive scans identify and destroy viruses, Trojans, worms, spyware, adware, dialers, and other threats without interrupting your work.

 Real-time security alerting

Security alerts notify you about emergency virus outbreaks and security threats, and provide response options to remove, neutralize, or learn more about the threat.

 Detection and cleaning at multiple entry points

VirusScan monitors and cleans at your computer’s key entry points: e-mail, instant message attachments, and Internet downloads.

User Guide 7

Getting Started

 E-mail monitoring for worm-like activity

WormStopper™ monitors suspect mass-mailing behaviors and stops viruses and worms from spreading through e-mail to other computers.

 Script monitoring for worm-like activity

ScriptStopper™ monitors suspect script executions and stops viruses and worms from spreading through e-mail to other computers.

 Free instant messaging and e-mail technical support

Live technical support provides prompt, easy assistance using instant messaging and e-mail.

System requirements

 Microsoft  Personal computer with Pentium-compatible processor

Windows 98, 2000: 133 MHz or higher Windows Me: 150 MHz or higher Windows XP (Home and Pro): 300 MHz or higher

 RAM

Windows 98, Me, 2000: 64 MB Windows XP (Home and Pro): 128 MB

 40 MB hard disk space  Microsoft

Windows 98, Windows Me, Windows 2000, or Windows XP

Internet Explorer 5.5 or later

NOTE

To upgrade to the latest version of Internet Explorer, visit the Microsoft Web site at http://www.microsoft.com/.

Supported e-mail programs

 POP3 (Outlook Express, Outlook, Eudora, Netscape)

Supported instant messaging programs

 AOL Instant Messenger 2.1 or later  Yahoo Messenger 4.1 or later  Microsoft Windows Messenger 3.6 or later  MSN Messenger 6.0 or later

8 McAfee® VirusScan® software version 10.0

Testing VirusScan

Before initial use of VirusScan, it’s a good idea to test your installation. Use the following steps to separately test the ActiveShield and Scan features.

Testing ActiveShield

NOTE

To test ActiveShield from the VirusScan tab in SecurityCenter, click

Test VirusScan to view an online Support FAQ

containing these steps.

To test ActiveShield:

1 Go to http://www.eicar.com/ in your web browser.

2 Click the The AntiVirus testfile eicar.com link.

3 Scroll to the bottom of the page. Under Download, you will see four links.

4 Click eicar.com.

If ActiveShield is working properly, it detects the eicar.com file immediately after you click the link. You can try to delete or quarantine detected files to see how ActiveShield handles possible threats. See Understanding security alerts on page 23 for details.

Testing VirusScan

Testing Scan

Before you can test Scan, you must disable ActiveShield to prevent it from detecting the test files before Scan does, then download the test files.

To download the test files:

1 Disable ActiveShield: Right-click the McAfee icon, point to VirusScan, then

2 Download the EICAR test files from the EICAR web site:

click

Disable.

a Go to http://www.eicar.com/.

b Click the The AntiVirus testfile eicar.com link.

User Guide 9

Getting Started

Scroll to the bottom of the page. Under Download, you will see these links:

eicar.com contains a line of text that VirusScan will detect as a virus.

eicar.com.txt (optional) is the same file, but with a different file name, for

those users who have difficulty downloading the first link. Simply rename the file “eicar.com” after you download it.

eicar_com.zip is a copy of the test virus inside a .ZIP compressed file (a

WinZip

eicarcom2.zip is a copy of the test virus inside a .ZIP compressed file,

which itself is inside a .

d Click each link to download its file. For each one, a File Download dialog

™

file archive).

ZIP compressed file.

box appears.

e Click Save, click the Create New Folder button, then rename the folder VSO

Scan Folder

f Double-click VSO Scan Folder, then click Save again in each Save As dialog

box.

3 When you are finished downloading the files, close Internet Explorer.

4 Enable ActiveShield: Right-click the McAfee icon, point to VirusScan, then

Enable.

click

To test Scan:

1 Right-click the McAfee icon, point to VirusScan, then click Scan.

2 Using the directory tree in the left pane of the dialog box, go to the VSO Scan

where you saved the files:

Folder

a Click the + sign next to the C drive icon.

b Click the VSO Scan Folder to highlight it (do not click the + sign next to it).

This tells Scan to check only that folder. You can also put the files in random locations on your hard drive for a more convincing demonstration of Scan’s abilities.

3 In the Scan Options area of the Scan dialog box, ensure that all options are

selected.

4 Click Scan on the lower right of the dialog box.

VirusScan scans the

VSO Scan Folder. The EICAR test files that you saved to

that folder appear in the

You can try to delete or quarantine detected files to see how Scan handles possible threats. See Understanding threat detections on page 31 for details.

10 McAfee® VirusScan® software version 10.0

List of Detected Files. If so, Scan is working properly.

Using McAfee SecurityCenter

McAfee SecurityCenter is your one-stop security shop, accessible from its icon in your Windows system tray or from your Windows desktop. With it, you can perform these useful tasks:

 Get free security analysis for your computer.

 Launch, manage, and configure all your McAfee subscriptions from one icon.

 See continuously updated virus alerts and the latest product information.

 Get quick links to frequently asked questions and account details at the

McAfee web site.

NOTE

For more information about its features, click Help in the

SecurityCenter dialog box.

While SecurityCenter is running and all of the McAfee features installed on your computer are enabled, a red M icon appears in the Windows system tray. This area is usually in the lower-right corner of the Windows desktop and contains the clock.

If one or more of the McAfee applications installed on your computer are disabled, the McAfee icon changes to black .

Using McAfee SecurityCenter

To open the McAfee SecurityCenter:

1 Right-click the McAfee icon .

2 Click Open SecurityCenter.

To access a VirusScan feature:

1 Right-click the McAfee icon .

2 Point to VirusScan, then click the feature you want to use.

User Guide 11

Getting Started

12 McAfee® VirusScan® software version 10.0

Using McAfee VirusScan

Using ActiveShield

When ActiveShield is started (loaded into computer memory) and enabled, it is constantly protecting your computer. ActiveShield scans files when they are accessed by either you or your computer. When ActiveShield detects an infected file, it automatically tries to clean the virus. If ActiveShield cannot clean the virus, you can quarantine or delete the file.

Enabling or disabling ActiveShield

ActiveShield is started (loaded into computer memory) and enabled (denoted by the red icon in your Windows system tray) by default as soon as you restart your computer after the installation process.

If ActiveShield is stopped (not loaded) or is disabled (denoted by the black icon), you can manually run it, as well as configure it to start automatically when Windows starts.

Enabling ActiveShield

To enable ActiveShield for this Windows session only:

Right-click the McAfee icon, point to changes to red .

If ActiveShield is still configured to start when Windows starts, a message tells you that you are now protected from threats. Otherwise, a dialog box appears that lets you configure ActiveShield to start when Windows starts (Figure 2-1 on page 14).

VirusScan, then click Enable. The McAfee icon

User Guide 13

Using McAfee VirusScan

Disabling ActiveShield

To disable ActiveShield for this Windows session only:

1 Right-click the McAfee icon, point to VirusScan, then click Disable.

2 Click Yes to confirm.

The McAfee icon changes to black .

If ActiveShield is still configured to start when Windows starts, your computer will be protected from threats again when you restart your computer.

Configuring ActiveShield options

You can modify ActiveShield starting and scanning options in the ActiveShield tab

VirusScan Options dialog box (Figure 2-1), which is accessible via the

of the McAfee icon in your Windows system tray.

Starting ActiveShield

ActiveShield is started (loaded into computer memory) and enabled (denoted by red ) by default as soon as you restart your computer after the installation process.

If ActiveShield is stopped (denoted by black ), you can configure it to start automatically when Windows starts (recommended).

14 McAfee® VirusScan® software version 10.0

Figure 2-1. ActiveShield Options

Using ActiveShield

NOTE

During updates to VirusScan, the Update Wizard might exit ActiveShield temporarily to install new files. When the

prompts you to click Finish, ActiveShield starts again.

Wizard

Update

To start ActiveShield automatically when Windows starts:

1 Right-click the McAfee icon, point to VirusScan, then click Options.

The

VirusScan Options dialog box opens (Figure 2-1 on page 14).

2 Select the Start ActiveShield when Windows starts (recommended) checkbox,

then click

3 Click OK to confirm, then click OK.

Apply to save your changes.

Stopping ActiveShield

WARNING

If you stop ActiveShield, your computer is not protected from threats. If you must stop ActiveShield, other than for updating VirusScan, ensure that you are not connected to the Internet.

To stop ActiveShield from starting when Windows starts:

1 Right-click the McAfee icon, point to VirusScan, then click Options.

The

VirusScan Options dialog box opens (Figure 2-1 on page 14).

2 Deselect the Start ActiveShield when Windows starts (recommended) checkbox,

then click

3 Click OK to confirm, then click OK.

Apply to save your changes.

Scanning e-mail and attachments

By default, e-mail scanning and automatic cleaning are enabled via the Scan e-mail

and attachments

When this option is enabled, ActiveShield automatically scans and attempts to clean inbound (POP3) and outbound (SMTP) infected e-mail messages and attachments for most popular e-mail clients, including the following:

 Microsoft Outlook Express 4.0 or later  Microsoft Outlook 97 or later  Netscape Messenger 4.0 or later  Netscape Mail 6.0 or later  Eudora Light 3.0 or later  Eudora Pro 4.0 or later  Eudora 5.0 or later

option (Figure 2-1 on page 14).

User Guide 15

Using McAfee VirusScan

 Pegasus 4.0 or later

NOTE

E-mail scanning is not supported for these e-mail clients: Web-based, IMAP, AOL, POP3 SSL, and Lotus Notes. However, ActiveShield scans e-mail attachments when they are opened.

If you disable the

Scan e-mail and attachments option, the

E-mail Scan options and the WormStopper options (Figure 2-2

on page 17) are automatically disabled. If you disable

outbound e-mail scanning, the WormStopper options are automatically disabled.

If you change your e-mail scanning options, you must restart your e-mail program to complete the changes.

Inbound e-mail

If an inbound e-mail message or attachment is infected, ActiveShield performs the following steps:

 Tries to clean the infected e-mail

 Tries to quarantine or delete an uncleanable e-mail

 Includes an alert file in the inbound e-mail that contains information about the

actions performed to remove the possible threat

Outbound e-mail

If an outbound e-mail message or attachment is infected, ActiveShield performs the following steps:

 Tries to clean the infected e-mail

 Tries to quarantine or delete an uncleanable e-mail

NOTE

For details about outbound e-mail scanning errors, see the online help.

Disabling e-mail scanning

By default, ActiveShield scans both inbound and outbound e-mail. However, for enhanced control, you can set ActiveShield to scan only inbound or outbound e-mail.

To disable scanning of inbound or outbound e-mail:

1 Right-click the McAfee icon, point to VirusScan, and then click Options.

2 Click Advanced, then click the E-mail Scan tab (Figure 2-2).

3 Deselect Inbound e-mail messages or Outbound e-mail messages, then click OK.

16 McAfee® VirusScan® software version 10.0

Using ActiveShield

Figure 2-2. Advanced ActiveShield Options - E-mail tab

Scanning for worms

VirusScan monitors your computer for suspect activity that might indicate a threat is present on your computer. While VirusScan cleans viruses and other threats, WormStopper

prevents viruses and worms from spreading further.

A computer “worm” is a self-replicating virus that resides in active memory and might send copies of itself through e-mail. Without WormStopper, you might notice worms only when their uncontrolled replication consumes system resources, slowing performance or halting tasks.

The WormStopper protection mechanism detects, alerts, and blocks suspect activity. Suspect activity might include the following actions on your computer:

 An attempt to forward e-mail to a large portion of your address book

 Attempts to forward multiple e-mail messages in rapid succession

If you set ActiveShield to use the default option in the

Advanced Options dialog box, WormStopper monitors e-mail activity

Enable WormStopper (recommended)

for suspect patterns and alerts you when a specified number of e-mails or recipients has been exceeded within a specified interval.

To set ActiveShield to scan sent e-mail messages for worm-like activity:

1 Right-click the McAfee icon, point to VirusScan, then click Options.

2 Click Advanced, then click the E-mail tab.

User Guide 17

Using McAfee VirusScan

Click Enable WormStopper (recommended) (Figure 2-3).

By default, the following detailed options are enabled:

 Pattern matching to detect suspect activity

 Alerting when e-mail is sent to 40 or more recipients

 Alerting when 5 or more e-mails are sent within 30 seconds

NOTE

If you modify the number of recipients or seconds for monitoring sent e-mails, it might result in invalid detections. McAfee recommends that you click setting. Otherwise, click

Yes to change the default setting to

No to retain the default

your setting.

This option can be automatically enabled after the first time a potential worm is detected (see Managing potential worms on page 24 for details):

 Automatic blocking of suspect outbound e-mails

Figure 2-3. Advanced ActiveShield Options - E-mail tab

18 McAfee® VirusScan® software version 10.0

Using ActiveShield

Scanning inbound instant message attachments

By default, scanning of instant message attachments is enabled via the Scan

inbound instant message attachments

option (Figure 2-1 on page 14).

When this option is enabled, VirusScan automatically scans and attempts to clean inbound infected instant message attachments for most popular instant messaging programs, including the following:

 MSN Messenger 6.0 or later  Yahoo Messenger 4.1 or later  AOL Instant Messenger 2.1 or later

NOTE

For your protection, you cannot disable auto-cleaning of instant message attachments.

If an inbound instant message attachment is infected, VirusScan performs the following steps:

 Tries to clean the infected message

 Prompts you to quarantine or delete an uncleanable message

Scanning all files

If you set ActiveShield to use the default All files (recommended) option, it scans every file type that your computer uses, as your computer attempts to use it. Use this option to get the most thorough scan possible.

To set ActiveShield to scan all file types:

1 Right-click the McAfee icon, point to VirusScan, and then click Options.

2 Click Advanced, then click the Scanning tab (Figure 2-4 on page 20).

3 Click All files (recommended), then click OK.

User Guide 19

Using McAfee VirusScan

Scanning program files and documents only

If you set ActiveShield to use the Program files and documents only option, it scans program files and documents, but not any other files used by your computer. The latest virus signature file ( will scan.To set ActiveShield to scan program files and documents only:

1 Right-click the McAfee icon, point to VirusScan, and then click Options.

Figure 2-4. Advanced ActiveShield Options - Scanning tab

DAT file) determines which file types that ActiveShield

2 Click Advanced, then click the Scanning tab (Figure 2-4). 3 Click Program files and documents only, then click OK.

Scanning for new unknown viruses

If you set ActiveShield to use the default Scan for new unknown viruses

(recommended)

to the signatures of known viruses, while also looking for telltale signs of unidentified viruses in the files.

To set ActiveShield to scan for new unknown viruses:

1 Right-click the McAfee icon, point to VirusScan, and then click Options.

2 Click Advanced, then click the Scanning tab (Figure 2-4).

3 Click Scan for new unknown viruses (recommended), then click OK.

20 McAfee® VirusScan® software version 10.0

option, it uses advanced heuristic techniques that try to match files

Using ActiveShield

Scanning for scripts

VirusScan monitors your computer for suspect activity that might indicate a threat is present on your computer. While VirusScan cleans viruses and other threats, ScriptStopperTM prevents Trojan horses from running scripts that spread viruses further.

A “Trojan horse” is a suspect program that pretends to be a benign application. Trojans are not viruses because they do not replicate, but they can be just as destructive.

The ScriptStopper protection mechanism detects, alerts, and blocks suspect activity. Suspect activity might include the following action on your computer:

 A script execution that results in the creation, copying, or deletion of files, or

the opening of your Windows registry

If you set ActiveShield to use the default option in the

Advanced Options dialog box, ScriptStopper monitors script

Enable ScriptStopper (recommended)

execution for suspect patterns and alerts you when a specified number of e-mails or recipients has been exceeded within a specified interval.

To set ActiveShield to scan running scripts for worm-like activity:

1 Right-click the McAfee icon, point to VirusScan, then click Options.

2 Click Advanced, then click the Exploits tab (Figure 2-5).

3 Click Enable ScriptStopper (recommended), then click OK.

Figure 2-5. Advanced ActiveShield Options - Exploits tab

User Guide 21

Using McAfee VirusScan

Scanning for Potentially Unwanted Programs (PUPs)

NOTE

If McAfee AntiSpyware is installed on your computer, it manages all Potentially Unwanted Program activity. Open McAfee AntiSpyware to configure your options.

If you set ActiveShield to use the default

(recommended)

option in the Advanced Options dialog box, Potentially Unwanted

Scan Potentially Unwanted Programs

Program (PUP) protection quickly detects, blocks, and removes spyware, adware, and other programs that gather and transmit your private data without your permission.

To set ActiveShield to scan for PUPs:

1 Right-click the McAfee icon, point to VirusScan, and then click Options.

2 Click Advanced, then click the PUPs tab (Figure 2-6).

3 Click Scan Potentially Unwanted Programs (recommended), then click OK.

Figure 2-6. Advanced ActiveShield Options - PUPs tab

22 McAfee® VirusScan® software version 10.0

Understanding security alerts

If ActiveShield finds a virus, a virus alert similar to Figure 2-7 appears. For most viruses, Trojan horses, and worms, ActiveShield automatically tries to clean the file and alerts you. For Potentially Unwanted Programs (PUPs), ActiveShield detects the file, automatically blocks it, and alerts you.

Using ActiveShield

Figure 2-7. Virus alert

You can then choose how to manage infected files, infected e-mail, suspect scripts, potential worms, or PUPs, including whether to submit infected files to the McAfee AVERT labs for research.

For added protection, whenever ActiveShield detects a suspect file, you are prompted to scan your entire computer immediately. Unless you choose to hide the scan prompt, it will periodically remind you until you perform the scan.

Managing detected files

1 If ActiveShield can clean the file, you can learn more or ignore the alert:

 Click Find out more information to view the name, location, and virus name

associated with the infected file.

 Click Continue what I was doing to ignore the alert and close it.

2 If ActiveShield cannot clean the file, click Quarantine the detected file to encrypt

and temporarily isolate suspect files in the quarantine directory until an appropriate action can be taken.

A confirmation message appears and prompts you to check your computer for other threats. Click

3 If ActiveShield cannot quarantine the file, click Delete the detected file to try to

remove the file.

Scan to complete the quarantine process.

User Guide 23

Using McAfee VirusScan

Managing detected e-mail

By default, e-mail scanning automatically tries to clean infected e-mail. An alert file included in the inbound message notifies you whether the e-mail was cleaned, quarantined, or deleted.

Managing suspect scripts

If ActiveShield detects a suspect script, you can find out more and then stop the script if you did not intend to initiate it:

If you are sure that you trust the script, you can allow the script to run:

Managing potential worms

If ActiveShield detects a potential worm, you can find out more and then stop the e-mail activity if you did not intend to initiate it:

 Click Find out more information to view the name, location, and description

of the activity associated with the suspect script.

 Click Stop this script to prevent the suspect script from running.

 Click Allow this script this time to let all scripts contained within a single file

run once.

 Click Continue what I was doing to ignore the alert and let the script run.

 Click Find out more information to view the recipient list, subject line,

message body, and description of the suspect activity associated with the infected e-mail message.

 Click Stop this e-mail to prevent the suspect e-mail from being sent and

delete it from your message queue.

If you are sure that you trust the e-mail activity, click ignore the alert and let the e-mail be sent.

24 McAfee® VirusScan® software version 10.0

Continue what I was doing to

Using ActiveShield

Managing PUPs

If ActiveShield detects and blocks a Potentially Unwanted Program (PUP), you can find out more and then remove the program if you did not intend to install it:

 Click Find out more information to view the name, location, and

recommended action associated with the PUP.

 Click Remove this PUP to remove the program if you did not intend to

install it.

A confirmation message appears.

- If (a) you do not recognize the PUP or (b) you did not install the PUP as part of a bundle or accept a license agreement in connection with such programs, click method.

OK to remove the program using the McAfee removal

- Otherwise, click

Cancel to exit the automatic removal process. If you

change your mind later, you can manually remove the program using the vendor’s uninstaller.

 Click Continue what I was doing to ignore the alert and block the program

this time.

If you (a) recognize the PUP or (b) you might have installed the PUP as part of a bundle or accepted a license agreement in connection with such programs, you can allow it to run:

 Click Trust this PUP to whitelist this program and always let it run in the

future.

See "Managing trusted PUPs" for details.

Managing trusted PUPs

The programs that you add to the Trusted PUPs list will not be detected by McAfee VirusScan.

If a PUP is detected and added to the Trusted PUPs list, you can later remove it from the list if necessary.

If your Trusted PUPs list is full, you must remove some items before you can trust another PUP.

To remove a program from your Trusted PUPs list:

1 Right-click the McAfee icon, point to VirusScan, and then click Options.

2 Click Advanced, then click the PUPs tab.

3 Click Edit Trusted PUPs List, select the checkbox in front of the file name, and

click

Remove. When you are finished removing items, click OK.

User Guide 25

Using McAfee VirusScan

Manually scanning your computer

The Scan feature lets you selectively search for viruses and other threats on hard drives, floppy disks, and individual files and folders. When Scan finds an infected file, it automatically tries to clean the file, unless it is a Potentially Unwanted Program. If Scan cannot clean the file, you can quarantine or delete the file.

Manually scanning for viruses and other threats

To scan your computer:

1 Right-click the McAfee icon, point to VirusScan, then click Scan.

The

Scan dialog box opens (Figure 2-8).

2 Click the drive, folder, or file that you want to scan.

3 Select your Scan Options. By default, all of the Scan Options are pre-selected to

provide the most thorough scan possible (Figure 2-8):

 Scan subfolders — Use this option to scan files contained in your

subfolders. Deselect this checkbox to allow checking of only the files visible when you open a folder or drive.

26 McAfee® VirusScan® software version 10.0

Figure 2-8. Scan dialog box

Manually scanning your computer

Example:

Scan subfolders checkbox. The folders and their contents are not scanned.

The files in Figure 2-9 are the only files scanned if you deselect the

To scan those folders and their contents, you must leave the checkbox selected.

Figure 2-9. Local disk contents

 Scan all files — Use this option to allow the thorough scanning of all file

types. Deselect this checkbox to shorten the scanning time and allow checking of program files and documents only.

 Scan within compressed files — Use this option to reveal hidden infected

files within . prevent checking of any files or compressed files within the compressed file.

Sometimes virus authors plant viruses in a . into another . detect these viruses as long as you leave this option selected.

ZIP and other compressed files. Deselect this checkbox to

ZIP file, then insert that .ZIP file

ZIP file in an effort to bypass anti-virus scanners. Scan can

 Scan for new unknown viruses — Use this option to find the newest viruses

that might not have existing “cures.” This option uses advanced heuristic techniques that try to match files to the signatures of known viruses, while also looking for telltale signs of unidentified viruses in the files.

This scanning method also looks for file traits that can generally rule out that the file contains a virus. This minimizes the chances that Scan gives a false indication. Nevertheless, if a heuristic scan detects a virus, you should treat it with the same caution that you would treat a file that you know contains a virus.

This option provides the most thorough scan, but is generally slower than a normal scan.

User Guide 27

Using McAfee VirusScan

4 Click Scan to start scanning files.

5 Click OK to close the summary, and view the list of any detected files in the

 Scan for Potentially Unwanted Programs — Use this option to detect

spyware, adware, and other programs that gather and transmit your private data without your permission.

NOTE

Leave all options selected for the most thorough scan possible. This effectively scans every file in the drive or folder that you select, so allow plenty of time for the scan to complete. The larger the hard drive and the more files you have, the longer the scan takes.

When the scan is finished, a scan summary shows the number of files scanned, the number of files detected, the number of Potentially Unwanted Programs, and the number of detected files that were automatically cleaned.

Scan dialog box (Figure 2-10).

NOTE

Scan counts a compressed file (.ZIP, .CAB, etc.) as one file within the

Files Scanned number. Also, the number of files

scanned can vary if you have deleted your temporary Internet files since your last scan.

28 McAfee® VirusScan® software version 10.0

Figure 2-10. Scan results

Manually scanning your computer

If Scan finds no viruses or other threats, click Back to select another drive or

folder to scan, or click

Close to close the dialog box. Otherwise, see

Understanding threat detections on page 31.

Scanning via Windows Explorer

VirusScan provides a shortcut menu to scan selected files, folders, or drives for viruses and other threats from within Windows Explorer.

To scan files in Windows Explorer:

1 Open Windows Explorer.

2 Right-click the drive, folder, or file that you want to scan, and then click Scan.

The

Scan dialog box opens and starts scanning files. By default, all of the

default

Scan Options are pre-selected to provide the most thorough scan

possible (Figure 2-8 on page 26).

Scanning via Microsoft Outlook

VirusScan provides a toolbar icon to scan for viruses and other threats in selected message stores and their subfolders, mailbox folders, or e-mail messages containing attachments from within Microsoft Outlook 97 or later.

To scan e-mail in Microsoft Outlook:

1 Open Microsoft Outlook.

2 Click the message store, folder, or e-mail message containing an attachment

that you want to scan, and then click the e-mail scanning toolbar icon .

The e-mail scanner opens and starts scanning files. By default, all of the default

Scan Options are pre-selected to provide the most thorough scan possible

(Figure 2-8 on page 26).

Automatically scanning for viruses and other threats

Although VirusScan scans files when they are accessed by either you or your computer, you can schedule automatic scanning in Windows Scheduler to thoroughly check your computer for viruses and other threats at specified intervals.

To schedule a scan:

1 Right-click the McAfee icon, point to VirusScan, then click Options.

The

VirusScan Options dialog box opens.

2 Click the Scheduled Scan tab (Figure 2-11 on page 30).

User Guide 29

Using McAfee VirusScan

Figure 2-11. Scheduled Scan Options

Select the Scan My Computer at a scheduled time checkbox to enable automatic scanning.

4 Specify a schedule for automatic scanning:

 To accept the default schedule (8PM every Friday), click OK.

 To edit the schedule:

a. Click

b. Select how often to scan your computer in the then select additional options in the dynamic area below it:

Daily - Specify the number of days between scans.

Weekly (the default) - Specify the number of weeks between scans as well

as the names of the day(s) of the week.

Monthly - Specify which day of the month to scan. Click Select Months to

specify which months to scan, and click

Once - Specify which date to scan.

30 McAfee® VirusScan® software version 10.0

Edit.

Schedule Task list, and

OK.

+ 68 hidden pages

McAfee VLF09E002RAA, VirusScan 10.0 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Quick Start Card

Getting Started

New features

System requirements

Testing VirusScan

Testing ActiveShield

Testing Scan

Using McAfee SecurityCenter

Using McAfee VirusScan

Using ActiveShield

Enabling or disabling ActiveShield

Enabling ActiveShield

Disabling ActiveShield

Configuring ActiveShield options

Starting ActiveShield

Stopping ActiveShield

Scanning e-mail and attachments

Scanning for worms

Scanning inbound instant message attachments

Scanning all files

Scanning program files and documents only

Scanning for new unknown viruses

Scanning for scripts

Scanning for Potentially Unwanted Programs (PUPs)

Understanding security alerts

Managing detected files

Managing detected e-mail

Managing suspect scripts

Managing potential worms

Managing PUPs

Manually scanning your computer

Manually scanning for viruses and other threats

Scanning via Windows Explorer

Scanning via Microsoft Outlook

Automatically scanning for viruses and other threats