McAfee AVDCDE-BA-CA User Guide - Page 272

Compressed files, Include, subfolders, Include subfolders, All Files, Program, files only, Extensions

Page 272 highlights

Using Specialized Scanning Tools 5. Specify the types of files you want the ScreenScan utility to examine. You can • Scan compressed files. Select the Compressed files checkbox to have the utility look for viruses in compressed files or file archives. To see a list of the types of files and archives that the application scans, see "Current list of compressed files scanned" on page 292. • Scan subfolders within the designated target. Select the Include subfolders checkbox to have the utility look for viruses in any folders inside your scan target. Š NOTE: Choosing Include subfolders causes the utility to scan only those files stored in the subfolders themselves. The utility will not scan files stored at the root level of the folder you designate. To scan those files, clear the Include subfolders checkbox. • Scan all files. Select the All Files checkbox to have the utility scan all of the files in the mailbox or public folder you specified, whatever their extensions. Š NOTE: McAfee recommends that you choose this option for your first scan operation, or periodically thereafter, to ensure that your system is virus-free. You can then limit the scope of later scan operations. • Choose file types. Viruses cannot infect files that contain no executable code, whether script, macro, or binary code. You can, therefore, safely narrow the scope of your scan operations to those files most susceptible to virus infection. To do so, click the Program files only button. To see or designate the file name extensions the ScreenScan utility will examine, click Extensions. This opens the Program File Extensions dialog box. To learn about how to change the files listed there, see "Adding file name extensions for scanning" on page 287. 6. Turn on heuristic scanning. Click Advanced to open the Advanced Scan Settings dialog box (see Figure 8-10 on page 273). Heuristic scanning technology enables the ScreenScan utility to recognize new viruses based on their resemblance to similar viruses that the module already knows. To do this, the utility looks for certain "virus-like" characteristics in the files you've asked it to scan. 272 McAfee VirusScan Anti-Virus Software

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Using Specialized Scanning Tools
272
McAfee VirusScan Anti-Virus Software
5.
Specify the types of files you want the ScreenScan utility to examine. You
can
Scan compressed files
. Select the
Compressed files
checkbox to
have the utility look for viruses in compressed files or file archives.
To see a list of the types of files and archives that the application
scans, see
Current list of compressed files scanned
on page 292
.
Scan subfolders within the designated target
. Select the
Include
subfolders
checkbox to have the utility look for viruses in any
folders inside your scan target.
NOTE:
Choosing
Include subfolders
causes the utility to scan
only those files stored in the subfolders themselves. The utility
will not scan files stored at the root level of the folder you
designate. To scan those files, clear the
Include subfolders
checkbox.
Scan all files
. Select the
All Files
checkbox to have the utility scan
all of the files in the mailbox or public folder you specified,
whatever their extensions.
NOTE:
McAfee recommends that you choose this option for
your first scan operation, or periodically thereafter, to ensure
that your system is virus-free. You can then limit the scope of
later scan operations.
Choose file types
. Viruses cannot infect files that contain no
executable code, whether script, macro, or binary code. You can,
therefore, safely narrow the scope of your scan operations to those
files most susceptible to virus infection. To do so, click the
Program
files only
button.
To see or designate the file name extensions the ScreenScan utility
will examine, click
Extensions
. This opens the Program File
Extensions dialog box. To learn about how to change the files listed
there, see
Adding file name extensions for scanning
on page 287
.
6.
Turn on heuristic scanning. Click
Advanced
to open the Advanced Scan
Settings dialog box (see
Figure 8-10 on page 273
).
Heuristic scanning technology enables the ScreenScan utility to
recognize new viruses based on their resemblance to similar viruses that
the module already knows. To do this, the utility looks for certain
virus-like
characteristics in the files you
ve asked it to scan.