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Using the VShield Scanner
4
What does the VShield scanner do?
McAfee desktop anti-virus products use two general methods to protect your
system. The first method, background scanning, operates continuously,
watching for viruses as you use your computer for everyday tasks. In the
VirusScan product, the VShield scanner performs this function. A second
method allows you to initiate your own scan operations. The VirusScan
application generally handles these tasks. To learn more about the application,
see
Chapter 5, "Using the VirusScan application."
Depending on how you configure it, the VShield scanner can monitor any file
that arrives on or leaves your system, whether on floppy disk, over your
network, in file attachments that accompany e-mail messages, or from the
Internet. The scanner looks for viruses as you open, save, copy, rename or
otherwise modify your files, and it probes your computer's memory during
any file activity. The scanner starts when you start your computer, and stays
in memory until you shut it or your system down. The scanner also includes
optional features that guard against hostile Java applets and ActiveX controls,
and that keep your computer from connecting to dangerous Internet sites.
The VShield scanner consists of five related modules, each of which has a
specialized function. You can configure settings for all of these modules in the
VShield Properties dialog box. The VShield modules are:
• System Scan. This module looks for viruses on your hard disk as you work
with your computer. It tracks files as your system or other computers read
files from your hard disk or write files to it. It can also scan floppy disks and
network drives mapped to your system.
• E-Mail Scan. This module scans e-mail messages and message attachments
that you receive via intraoffice e-mail systems, and via the Internet. It scans
your Microsoft Exchange or Outlook mailbox on your Microsoft Exchange
server, and older cc:Mail e-mail systems.
It works in conjunction with the Download Scan module to scan Internet
mail that arrives via Simple Mail Transfer Protocol (SMTP) or Post Office
Protocol (POP-3) sources.
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User's Guide
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