What Is A Computer Virus? An Overview
virus is capable of reproduction. Although the factual sense, some types of malware including adware and spyware programs do not have the reproductive abilities, they are included under the term computer virus. A computer virus perform various functions, such as disturbing the message is relevant to deleting files and destroying the hard disk.
It is an oddity that a computer virus to show how vulnerable we are, with the victims of the devastating consequences such as impaired productivity runs into billions of dollars, while at the same time show sophistication of our amazing interconnectivity. We all realize what a computer virus and what havoc that can be done when the Mydoom worm infected nearly A computer virus is a software program that replicates itself and infects computers. A a quarter million computers in 2004.
How Viruses Spread?
We now know what computer viruses and so on, will be interesting to understand how the virus spreads. For the virus to spread it must first be triggered, for example, by a user visits a site that potentially dangerous, open a document that is infected by the virus, infected by a boot floppy “boot sector virus,” or by double clicking on an infected executable file.
The whole process works in the following ways:
* A virus software program is launched
* The virus code is loaded into the PC memory
* Viruses are destructive payload executes
* The virus replicates itself into other programs
If all the virus did was to replicate itself, then the harm caused will be negligible, but unfortunately the virus did something much damage such as overwriting the boot sector of your hard drive, steal your sensitive passwords, and hacking the e-mail id.
Is the Trojan horse?
As described previously, Trojan or Trojan horses do not replicate themselves but perform functions that are not desirable but is intended, while at the same time pretending to do something else.
How Do You Protect Your Computer From Viruses?
To be safe, you only need to load the antivirus software. After you purchase and install antivirus software, you will be prompted to download regular updates that will allow the program to fight the latest computer viruses.
* Scan and protect your computer against incoming e-mail
* Alerts you, if you try to download an infected file
* To prevent external attacks by firewall software






