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These destructive programs
claim to be some othertype
of program, but they cause
damage when they run.
Trojan horses
Norton 360 scans your PC for viruses, worms, Trojan
horses, and other software that is intentionally
destructive.It alsomonitors yourInternet connection
to protect you from the Internet-based threats that
exploit software vulnerabilities.
Types of viruses
A virusis asmall programthat isdesigned toalter the
way your PC operates, without your knowledge or
permission.
To be a virus, a program must do the following:
1 Run on its own, without you having to take any
action
1 Make copies of itself so that it can spread to other
PCs
Althoughnotallvirusesareintendedtocausedamage,
evenharmless virusescanaffect theperformanceand
stability of your PC. Norton 360 attempts to remove
all viruses from your PC.
Viruses fall into the following recognized categories:
Thesevirusesinfectprogram
files.Wheninfectedfilesrun,
they can attach the viruses
that they carry to other
program files. Norton 360
scans all program files on
yourPCtofindandeliminate
file infectors.
File infectors
223Understanding alerts andmessages
Types of viruses