Different methods through viruses may be
transferred
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There are different methods
through viruses may be transferred from one
computer to another.
Now- a-days,
most of the viruses spread due to receiving
unknown e-mail messages that contains viruses.
When a user opens such an infected message, the
virus is also loaded into the computer memory.
In this way, many other program files loaded
into the memory are infected. This virus is also
transferred to other computers when e-mail
messages are sent from the infected computer to
them. Due to these viruses, some time an auto
generated email message from your email ID sends
to your friends from your side with different
virus messages. Never open unknown and
attractive subject line email messages, always
scan first even if you know the sender of the
message.
Another way of
spreading virus is by using Internet and other
networks. For example, when you download
infected executables files or data files from
the Internet or from a shared disk on the
network, viruses are transferred to your
computer. It must be noted that many software
are available on the Internet with free of cost.
Most of that software contains viruses, for
example free PHP or ASP scripts are the main
source of virus, always get these scripts from
reliable sources. In an LAN, if a computer
contains a virus, then all the computers on the
network may be infected with that virus.
One important means of exchanging
data is through the use of removable media like,
CDs, MP3 player, ipod and flash devices. So,
when you copy the data from one computer to
another by using a removable media, the viruses
are also transferred.
The
virus can also infect your computer by using
pirated software. The software, which is
installed into your computer without license is
referred to as pirated software. Some companies
may intentionally attach some virus programs
into their software. This program will only
activate when it does not find some special
files like license files on your computer.
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