All About Computer Virus.

Introduction

The most dreadful word for computer users is “Virus”. The single and most dreaded experience is when you find that your PC has been infected with a virus. You’ll try to fix them but that worth nothing other than wasting your precious time.

You will amaze to know that these malicious software is written by some of the most brilliant mind across the work. Why? No one can answer that, as the working of individual human mind is too varied and complicated to comprehend.

What is a Virus?

A computer virus can be defined as an executable program that is capable of infecting other computer programs by modifying them to include a copy of itself. Just the way people can spread the common cold by being in contact with other people, a computer virus comes in contact with other programs to infect them.

How Viruses Work?

There are tens of thousands of viruses out there, and new ones are discovered every day. It is difficult to come up with a generic explanation of how viruses work, since they all have variation in the way they infect or the way they spread.

Common Symptoms to being infected.

You can just feel as you are dyeing but without  doctor you cannot identify your disease. Just the way you cannot identify virus attacks unless your anti-virus tells you. But stills there are some symptoms that you should look out for.

• Your computer always stops responding when you try to use certain software.
• There is double extension on an email attachment that you recently opened, such as .jpg .vbs or .gif. exe.
• An anti-virus program is disabled for no reason and it cannot be restarted.
• Strange dialog boxes or massage boxes appear on the screen.
• Someone tells you that they have recently received e-mail messages from you containing infected attached files, and you are sure you never sent any such mails.
• New icons that you did not place on the Desktop appear, and are not associated with any recently installed programs.
• A program disappears from the computer, and you didn’t uninstall it.
• Out-of-memory error message appear, even though your computer has plenty of RAM.
• A partition completely disappears.

NOTE:- That none of the above is a sure-shot sign of a virus infection. There could always be a software glitch or  a loose data cable, or even mere compatibility issues that could be causing such errors.