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| What
is a Virus? |
A virus is a manmade
program or piece of code that
causes an unexpected, usually
negative, event. Viruses are often
disguised games or images with
clever marketing titles such as
"Me, nude." |
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| What
is a Worm? |
Computer Worms
are viruses that reside in the
active memory of a computer and
duplicate themselves. They may
send copies of themselves to other
computers, such as through email
or Internet Relay Chat (IRC). |
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| What
is a Trojan Horse? |
A Trojan horse
program is a malicious program
that pretends to be a benign application;
a Trojan horse program purposefully
does something the user does not
expect. Trojans are not viruses
since they do not replicate, but
Trojan horse programs can be just
as destructive. Many people use
the term to refer only to non-replicating
malicious programs, thus making
a distinction between Trojans
and viruses. |
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