How viruses damage
our PC and how do they affect it:
We have all asked ourselves if we are really immune before the
attack of a virus or if our
antivirus software can really
protect us a hundred percent from a virus, the answer is no,
nowadays this is impossible, due to the fact that every day
there are new and more complex viruses been developed, also
because more security failures in the operative systems are
shown, the only chance we have got is to reduce the risk as much
as we can.
In order to reduce this risk, we need to
know the viruses than can affect our PCs and how they operate,
that way, we will be able of arranging the settings and
antivirus of our computers correctly.
But if the possibility of having a virus damaging our PC becomes
a reality, the effects can vary depending on the virus we are
putting up to and on the attack.
Some viruses just show a recurrent message such as
modify tools in Windows, for example: the wallpaper, other ones
act in a not so obvious way,
slowing down our PCs or sending
private information, for example: our mail’s password; but among
the most hazard viruses are the ones that affect the integrity
of our hard drives or the plate itself.
To be able of protecting ourselves against
this, we need to know our enemy, the virus. A virus is a program
that has as an objective to change the regular functions of our
PCs without the acknowledgement or permission of the user; they
can perform this due to the fact that they reproduce themselves.
Viruses have the function of spreading
through software, for example: a pirate
software, and they can be really harmful,
from the appearance of a simple message
until suppression of all the important files
in our computers.
Among the most know viruses, we can find
some that attack in great amount the most
known operative systems, such as Window or
Mac OS X, these are known as
Worms, they are not considered as real
viruses, because they do not depend on a software to spread
themselves, what they do most of the times is spread by mail and
register to run whenever the system is started, occupying space
in the hard drive and slowing down the PC.
There are other viruses, such as Troyans, which often are more
damaging; this is because there are not many ways of destroying
They act as Trojan horses; they help the attacker to get
inside the infected system, pretending to be amusing content,
such as wallpapers, games, music, advertising, etc. Sometimes
they download another virus to make the situation ever worse.
Jokes are another type of nuisance, even though they are not
considered as viruses; they are programs with different
functions, but all of them have fun purposes, never destruction,
but they still can be pretty annoying.
Hoaxes or fake viruses: are messages with false information;
usually are spread through e-mail, most of the times these mails
are spam like, meaning some sort of advertising that we have not
requested and they often come in great amounts to our inbox.
After getting to know the most frequent viruses and
understanding the way they operate, I would recommend following
the next steps to reduce the infection risk:
-Acquire a good antivirus software, among the most recommended
ones you might find:
-Avoid introducing to your PC
removable storage devices that you
think could be infected with some sort of virus. This can be
USB, CD-ROM, memory cards, etc.
-Do not install pirate
-Avoid downloading softwares from
Internet websites you do not
know or trust.
-Do not open messages or files from dubious sources or unknown
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