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Checking for Virus_ Spyware and Adware

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Checking for Virus_ Spyware and Adware Powered By Docstoc
					?If our computer behaves unexpectedly often, then one of the reasons may be our
computer is infected with some virus, adware or spyware.Computer virus is a man
made program that enters in to our computer without our permission and does the
unwanted things.

Some viruses may enter in to our computer and duplicate themselves by occupying all
the empty space in the memory, and some may manipulate even the security
systems.Some of the malicious programs other than virus programs are worm, Trojan
etc. which may also cause significant damage to the computer.

In order to protect our computers from the damage caused by these malicious
programs we can install anti-virus programs in our computer.These anti-virus
programs scan our hard disk for viruses, Trojan etc. and delete them.

Example of Anti-virus program:

McAfees Stinger tool, which can detect and delete many of common viruses, Norton
Antivirus etc.Spyware is an executable program that secretly collects the information
about the internet users and sends this information to somebody we dont know.They
may misuse our personal information for advertising purpose or sell to some third
parties.

It secretly sends the information like which sites we are visiting, credit card numbers,
e-mail addresses in our address books, passwords etc.Spyware can alter the home
page in our internet browser, scan our hard disk files, watch keystrokes, read cookies,
enter in system registry etc.Adware is a software package that automatically displays
advertisements when it is installed in our computer.

Sometimes it comes along with the freeware software packages we download from
the internet.Because of spyware/adware, some of the advertisements pop up
unexpectedly and our internet browsers home page may be altered by an unknown site.
As they use all our system resources for sending this information, we may experience
some lagging or instability in our applications when it is installed in our computer.

Computer virus, spyware, adware is a man made program that enters in to our
computer without our permission and does the unwanted things. In order to protect
our computers and computer maintenance from the damage, we can install anti-virus
programs in our computer.

				
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