McAfee VIRUSSCAN 5.1 User Manual page 100

Using the VShield Scanner
6. Click the Action tab to choose additional System Scan module options.
100 McAfee VirusScan
b. Select the types of heuristics scanning you want the System Scan
module to use. Your choices are:
– Enable macro heuristics scanning. Choose this option to
have the System Scan module identify all Microsoft Word,
Microsoft Excel, and other Microsoft Office files that contain
embedded macros, then compare the macro code to its virus
definitions database. The module will identify exact matches
with the virus name; code signatures that resemble existing
viruses cause the module to tell you it has found a potential
macro virus.
– Enable program file heuristics scanning. Choose this option
to have the System Scan module locate new viruses in program
files by examining file characteristics and comparing them
against a list of known virus characteristics. The module will
identify files with a sufficient number of these characteristics as
potential viruses.
– Enable macro and program file heuristics scanning.
Choose this option to have the module use both types of
heuristics scanning. McAfee VirusScan Software recommends
that you use this option for complete anti-virus protection.
Š NOTE: The System Scan module will use heuristic
scanning techniques only on the file types you designate
in the Program File Extensions dialog box. If you choose
to scan All files, the module will use heuristic scanning for
all file types.
c. Click OK to save your settings and return to the VShield Properties
dialog box.
To save your changes without closing the System Scan Properties dialog
box, click Apply. To save your changes and close the dialog box, click
OK. To close the dialog box without saving your changes, click Cancel.
Š NOTE: Clicking Cancel will not undo any changes you already
saved by clicking Apply.