Virus definition or understanding of, and a variety of viruses

Definition / understanding of computer virus
A computer virus is a computer program that was designed to duplicate or replicate by inserting a copy or copies of itself into the storage media (drive) / documents as well as in a network of secretly without the knowledge of the computer user. The effects of computer viruses is very diverse ranging from only appear strange messages to destroy files in your computer and delete files or documents that we store on our computer drives.

A Varierty of Viruses ( Worn , Trjoan and Spyware )

a.Worm
Worm is utilizing a security hole or slit weakness on our computer that allows the computer will be infected with the virus without having to execute a file that typically occurs on the network.

b.Trojan
Trojan is a program that allows computer controlled others remotely over a network or the Internet without your knowledge by us.

c.Spyware
Spyware applications are programs that leak information data or user behavior in the habit of using the computer to an outside party without us knowing. Usually used by most advertisers or phishing site.


so if there is any discrepancy in our computer so be careful, as we find strange files, out of curiosity we can open but not perhaps it is a virus that is made in such a way that it is easy to be fooled by it.
especially on a computer connected to the internet then more alert to the virus because the virus easily spread on the Internet