Hi folks! Have you ever thought about importance of anti virus software on your home or office computer? If you have doubts about that I will try to explain you something. Besides the so called viruses your computer has the big possibility to be infected with trojans (Trojan horse), worms and malware (malicious software). They all may have a great impact on your working process.

Trojans

What do the do actually? Trojan horse is called a malicious computer program that has a different effect from the one expected. If does not spread from one computer to another but can cause a big harm actually. For example trojan is a program that premeds to load lots of sexy pictures from internet, but when you run, it deletes all information from your hard drive. If you do not have anti virus software - try not to open any suspicious attachments in e-mail messages. Virus checkers see such programs and are able to neutralize them.

Worms

Unlike a Trojan horse worm is a self-spreading computer program that has much in common with a virus. The main feature of a computer worm is self-replication. But in addition to that it can do a great number of other things like deleting files, sending e-mails. Therefore your PC becomes a simple spam server and you might have no idea about that.

Viruses

Computer virus is a peace of program code that attaches copies of itself to the host and spreads this way, harming and damaging the host usually. Under the host we should understand an operating system or other computer program that may interact with other software via network.

Viruses during their destructive work use all the resources (memory and hard disk space) of your computer. To work properly viruses must have the system rights on your computer, so they usually are attach to different system programs and therefore are very hard to eliminate.

The cure

No let us see what can be done using anti virus software. First of all antivirus are scanning all the files you work with non stop to identify and eliminate all the suspicious programs. It may work both ways – either it examines files and compares them to the virus definitions in the knowledge base, either it identifies the suspicious behavior of different computer programs.

Commercial based anti virus software has even more approaches in order to find and eliminate malicious programs and pieces of code. For example it may emulate the whole operating system and the beginnings of code of each new executable on the computer and after that analyze the changes that might indicate the presence of virus.

If talking in general we may note that antivirus software may do the following for you – create virus protection and monitoring from a single management console (optional), provide real-time scanning capabilities and automatic detection and removal of spyware that attempts to run or install on a machine, protect all of your web traffic and guard the product from unauthorized access and attacks through integrated tamper protection.

I hope that is enough to realize that you obviously need virus checking software.