McAfee VIRUSSCAN 5.1 Manuale utente

McAfee VirusScan

Getting Started Guide

Version 5.1

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 Network Associates,

Inc.

TRADEMARK ATTRIBUTIONS

* ActiveHelp, Bomb Shelter, Building a World of Trust, CipherLink, Clean-Up, Cloaking, CNX,

Compass 7, CyberCop, CyberMedia, Data Security Letter, Discover, Distributed Sniffer System, Dr

Solomon’s, Enterprise Secure Cast, First Aid, ForceField, Gauntlet, GMT, GroupShield, HelpDesk,

Hunter, ISDN Tel/Scope, LM 1, LANGuru, Leading Help Desk Technology, Magic Solutions, MagicSpy,

MagicTree, Magic University, MagicWin, MagicWord, McAfee, McAfee Associates, MoneyMagic, More

Power To You, Multimedia Cloaking, NetCrypto, NetOctopus, NetRoom, NetScan, NetShield, NetShield,

NetStalker, Net Tools, Network Associates, Network General, Network Uptime!, NetXRay, Nuts & Bolts,

PC Medic, PCNotary, PGP, PGP (Pretty Good Privacy), PocketScope, Pop-Up, PowerTelnet, Pretty

Good Privacy, PrimeSupport, RecoverKey, RecoverKey-International, ReportMagic, RingFence, Router

PM, Safe & Sound, SalesMagic, SecureCast, Service Level Manager, ServiceMagic, Site Meter, Sniffer,

SniffMaster, SniffNet, Stalker, Statistical Information Retrieval (SIR), SupportMagic, Switch PM,

TeleSniffer, TIS, TMach, TMeg, Total Network Security, Total Network Visibility, Total Service Desk,

Total Virus Defense, T-POD, Trusted Mach, Trusted Mail, Uninstaller, Virex, Virex-PC, Virus Forum,

ViruScan, VirusScan, VShield, WebScan, WebShield, WebSniffer, WebStalker WebWall, and ZAC 2000

are registered trademarks of Network Associates and/or its affiliates in the US and/or other countries. All

other registered and unregistered trademarks in this document are the sole property of their respective

owners.

LICENSE AGREEMENT

NOTICE TO ALL USERS: CAREFULLY READ THE FOLLOWING LEGAL AGREEMENT

("AGREEMENT"), FOR THE LICENSE OF SPECIFIED SOFTWARE ("SOFTWARE") BY

NETWORK ASSOCIATES, INC. ("McAfee"). BY CLICKING THE ACCEPT BUTTON OR

INSTALLING THE SOFTWARE, YOU (EITHER AN INDIVIDUAL OR A SINGLE ENTITY)

CONSENT TO BE BOUND BY AND BECOME A PARTY TO THIS AGREEMENT. IF YOU DO

NOT AGREE TO ALL OF THE TERMS OF THIS AGREEMENT, CLICK THE BUTTON THAT

INDICATES THAT YOU DO NOT ACCEPT THE TERMS OF THIS AGREEMENT AND DO NOT

INSTALL THE SOFTWARE. (IF APPLICABLE, YOU MAY RETURN THE PRODUCT TO THE

PLACE OF PURCHASE FOR A FULL REFUND.)

1. License Grant. Subject to the payment of the applicable license fees, and subject to the terms and

conditions of this Agreement, McAfee hereby grants to you a non-exclusive, non-transferable right

to use one copy of the specified version of the Software and the accompanying documentation (the

"Documentation"). You may install one copy of the Software on one computer, workstation,

personal digital assistant, pager, "smart phone" or other electronic device for which the Software

was designed (each, a "Client Device"). If the Software is licensed as a suite or bundle with more

than one specified Software product, this license applies to all such specified Software products,

subject to any restrictions or usage terms specified on the applicable price list or product packaging

that apply to any of such Software products individually.

Issued July 2000/VirusScan v5.1

Getting Started Guide iii

Table of Contents

Chapter 1. About VirusScan Software . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

How does VirusScan software work? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

What comes with VirusScan software? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

What’s new in this release? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Chapter 2. Installing VirusScan Software . . . . . . . . . . . . . . . . . . . . . . . .13

Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Other recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Preparing to install VirusScan software . . . . . . . . . . . . . . . . . . . . . . . . .14

Installation options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Installation steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Chapter 3. Using the

VirusScan application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Starting the VirusScan application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Displaying the VirusScan application main window . . . . . . . . . . . . . . . .25

Chapter 4. Removing Infections

From Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

If you suspect you have a virus... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Chapter 5. Using the VShield Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . .33

What does the VShield scanner do? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Why use the VShield scanner? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Browser and e-mail client support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Enabling or starting the VShield scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Using the VShield configuration wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Using the VShield shortcut menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Appendix A. Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

How to Contact McAfee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Table of Contents

iv McAfee VirusScan

Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Appendix B. Download Information (License ID #: VSF500R) . . . . . . . .49

SecureCast™ (For Windows 95/98 Retail Version): . . . . . . . . . . . . . . . . . . . .49

Internet Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Getting Started Guide 5

1About VirusScan Software

How does VirusScan software work?

VirusScan software combines the anti-virus industry’s most capable scan

engine with top-notch interface enhancements that give you complete access

to that engine’s power. The VirusScan graphical user interface unifies its

specialized program components, but without sacrificing the flexibility you

need to fit the software into your computing environment. The scan engine,

meanwhile, combines the best features of technologies that McAfee and

McAfee VirusScan researchers developed independently for more than a

decade.

What comes with VirusScan software?

VirusScan software consists of several components that combine one or more

related programs, each of which play a part in defending your computer

against viruses and other malicious software. The components are:

•The VirusScan Central. This is your main entry point in using all of the

available components of McAfee VirusScan. This home screen (see Figure

1-2) provides relevant information such as the last time a virus scan was

performed on your computer; what VShield settings are enabled or

disabled and available DAT information and when it was created.

About VirusScan Software

6 McAfee VirusScan

Figure 1-1. McAfee VirusScan Central screen

Through this user-friendly interface, you can access the main functions of

McAfee VirusScan. Click the appropriate buttons as displayed to start

performing a particular task within McAfee VirusScan (e.g., Scan, Schedule,

Quarantine, etc).

You can also click the Update button to start searching and downloading any

availableupdatestoMcAfee VirusScaninstalledon yourcomputer.Make sure

that you are connected to the Internet prior to using this feature. For more

information and step-by-step instructions, click the Help icon on the upper

right-hand corner of the window. To view available options in customizing

how you want McAfee VirusScan components to work on your PC, click the

Options button.

•The VirusScan Console. This component allows you to create, configure

and run VirusScan tasks at times you specify. A “task” can include

anything from running a scan operation on a set of disks at a specific time

orinterval,torunningan update or upgradeoperation.Youcanalsoenable

or disable the VShield scanner from the Console window. The Console

comes with a preset list of tasks that ensures a minimal level of protection

for your system—you can, for example, immediately scan and clean your

C: drive or all disks on your computer. See “Creating and Configuring

Scheduled Tasks” on page 191 of the VirusScan User’s Guide for details.

Getting Started Guide 7

About VirusScan Software

•The VShield scanner. This component gives you continuous anti-virus

protection from viruses that arrive on floppy disks, from your network, or

from various sources on the Internet. The VShield scanner starts when you

start your computer, and stays in memory until you shut down. A flexible

set of property pages lets you tell the scanner which parts of your system

to examine, what to look for, which parts to leave alone, and how to

respond to any infected files it finds. In addition, the scanner can alert you

when it finds a virus, and can summarize each of its actions.

The VShield scanner comes with three other specialized modules that

guard against hostile Java applets and ActiveX controls, that scan e-mail

messages and attachments that you receive from the Internet via Lotus

cc:Mail, Microsoft Mail or other mail clients that comply with Microsoft’s

Messaging Application Programming Interface (MAPI) standard, and that

block access to dangerous Internet sites. Secure password protection for

your configuration options prevents others from making unauthorized

changes. The same convenient dialog box controls configuration options

for all VShield modules. See “Using the VShield Scanner” on page 85 of the

VirusScan User’s Guide for details.

•Safe & Sound. This component allows you to create backup sets in

protected volume files, which is the safest and preferred type of backup. A

protected volume file is a sectioned-off area of the drive, sometimes called a

logical drive.

NOTE: Safe & Sound is only available for Windows 95, 98 and

Windows ME. For more information, access the PDF formatted

file of the User’s Guide (i.e., vscan51_userguide.pdf) included

in the McAfee VirusScan CD-ROM and read Chapter 10

“About Safe & Sound”.

•Quarantine. This component allows you to move infected files to a

quarantine folder. This moves infected files from areas where they can be

accessed and enables you to clean or delete them at your convenience.

NOTE: For more information, access the PDF formatted file of

the User’s Guide (i.e., vscan51_userguide.pdf) included in the

McAfee VirusScan CD-ROM and read Chapter 11 “About

Quarantine”.

About VirusScan Software

8 McAfee VirusScan

• The E-Mail Scan extension. This component allows you to scan your

Microsoft Exchange or Outlook mailbox, or public folders to which you

have access, directly on the server. This invaluable “x-ray” peek into your

mailbox means that VirusScan software can find potential infections before

they make their way to your desktop, which can stop a Melissa-like virus

in its tracks. See “Scanning Microsoft Exchange and Outlook mail” on page

253 of the VirusScan User’s Guide for details.

• A cc:Mail scanner. This component includes technology optimized for

scanning Lotus cc:Mail mailboxes that do not use the MAPI standard.

Install and use this component if your workgroup or network uses cc:Mail

v7.x or earlier. See “Choosing Detection options” on page 116 of the

VirusScan User’s Guide for details.

•The Alert Manager Client configuration utility. This component lets you

choose a destination for Alert Manager “events” that VirusScan software

generates when it detects a virus or takes other noteworthy actions. You

can also specify a destination directory for older-style CentralizedAlerting

messages, or supplement either method with Desktop Management

Interface (DMI) alerts sent via your DMI client software. See “Using the

Alert Manager Client Configuration utility” on page 281 of the VirusScan

User’s Guide for details.

• The ScreenScan utility. This optional component scans your computer as

your screen saver runs during idle periods. See “Using the ScreenScan

utility” on page 269 of the VirusScan User’s Guide for details.

• The SendVirus utility. This component gives you an easy and painless

way to submit files that you believe are infected directly to McAfee

anti-virus researchers. A simple wizard guides you as you choose files to

submit, include contact details and, if you prefer, strip out any personal or

confidential data from document files. See “Using the SendVirus utility to

submit a file sample” on page 76 of the VirusScan User’s Guide for details.

• The Emergency Disk creation utility. This essential utility helps you to

create a floppy disk that you can use to boot your computer into a

virus-free environment, then scan essential system areas to remove any

viruses that could load at startup. See “Using the Emergency Disk Creation

utility” on page 49 of the VirusScan User’s Guide for details.

•Command-line scanners. This component consists of a set of full-featured

scanners you can use to run targeted scan operations from the MS-DOS

Prompt or Command Prompt windows, or from protected MS-DOS mode.

The set includes:

Getting Started Guide 9

About VirusScan Software

– SCAN.EXE, a scanner for 32-bit environments only. This is the

primary command-line interface. When you run this file, it first

checks its environment to see whether it can run by itself. If your

computer is running in 16-bit or protected mode, it will transfer

control to one of the other scanners.

– SCANPM.EXE, a scanner for 16- and 32-bit environments. This

scanner provides you with a full set of scanning options for 16- and

32-bit protected-mode DOS environments. It also includes support

for extended memory and flexible memory allocations. SCAN.EXE

will transfer control to this scanner when its specialized capabilities

can enable your scan operation to run more efficiently.

– SCAN86.EXE, a scanner for 16-bit environments only. This scanner

includes a limited set of capabilities geared to 16-bit environments.

SCAN.EXE will transfer control to this scanner if your computer is

running in 16-bit mode, but without special memory configurations.

– BOOTSCAN.EXE, a smaller, specialized scanner for use primarily

with the Emergency Disk utility. This scanner ordinarily runs from

a floppy disk you create to provide you with a virus-free boot

environment.

All of the command-line scanners allow you to initiate targeted scan

operations from an MS-DOS Prompt or Command Prompt window, or

from protected MS-DOS mode. Ordinarily, you'll use the VirusScan

application's graphical user interface (GUI) to perform most scanning

operations, but if you have trouble starting Windows or if the VirusScan

GUI components will not run in your environment, you can use the

command-line scanners as a backup.

•Documentation. VirusScan software documentation includes:

– This Getting Started Guide, which introduces the product, provides

installation instructions, outlines how to respond if you suspect

your computer has a virus, and provides a brief product overview.

TheprintedGettingStartedGuidecomes withtheVirusScansoftware

copies distributed on CD-ROM discs.

– A complete user’s guide saved on the VirusScan software CD-ROM

or installed on your hard disk in Adobe Acrobat .PDF format. The

VirusScan User’s Guide describes in detail how to use VirusScan and

includes other information useful as background or as advanced

configuration options. Acrobat .PDF files are flexible online

documents that contain hyperlinks, outlines and other aids for easy

navigation and information retrieval.

About VirusScan Software

10 McAfee VirusScan

– An administrator’s guide saved on the VirusScan software

CD-ROM or installed on your hard disk in Adobe Acrobat .PDF

format. The VirusScan Administrator’s Guide describes in detail how

to manage and configure VirusScan software.

– An online help file. This file gives you quick access to a full range of

topicsthat describeVirusScan software. Youcan openthisfile either

by choosing Help Topics from the Help menu in the VirusScan

main window, or by clicking any of the Help buttons displayed in

VirusScan dialog boxes.

The help file also includes extensive context-sensitive—or “What's

This”—help.Toseethese helptopics,right-click buttons,lists, icons,

some text boxes, and other elements that you see within dialog

boxes. You canalso click the ?symbolatthetop-right cornerinmost

dialog boxes, then click the element you want to see described to

display the relevanttopic. The dialog boxes with Helpbuttons open

the help file to the specific topic that describes the entire dialog box.

– A README.TXT file. This file contains last-minute additions or

changes to the documentation, lists any known behavior or other

issues with the product release, and often describes new product

features incorporated into incremental product updates. You’ll find

the README.TXT file at the root level of your VirusScan software

CD-ROM or in the VirusScan software program folder—you can

open and print it from Windows Notepad, or from nearly any

word-processing software.

What’s new in this release?

This VirusScan release introduces a number of innovative new features to the

product’s core functionality, to its range of coverage, and to the details of its

application architecture. The section “How does VirusScan software work?”

onpage25of the VirusScanUser’s Guide, discusses many of these features. The

single most significant change between previous VirusScan versions and this

release, however, is the integration of two separate VirusScan versions

optimized to run on separate Windows platforms into a single product that

runs on both. This single product also takes full advantage of each platform’s

strengths.

The next sections discuss other changes that this VirusScan release introduces.

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