Protecting Your Computer Using Antivirus Software

Protecting Your Computer Using Antivirus Software

The antivirus software or the virus scanner is a program which examines all the files within a computer, files which you have to mention in order to be scanned. This program also examines the memory contents, the operating system, the registers and many others, identifying the unexpected behaviour of your computer in case it comes into contact with different computer viruses. This program is configured in such a way that it removes any kind of malware in your computer.

There are usually two kinds of approaches which identify the malware in your computer, combining different resources and emphasizing the terms in the virus dictionary. The examination of the files and so on could lead to the identification of a virus. This kind of software identifies all the known viruses which match the records in the virus dictionary by identifying the suspicious behaviour of any kind of program which might be infected. This approach is called a heuristic analysis and it can include data captures, the monitoring of the ports and other such methods.

When an antivirus software looks into a file, it refers to the virus dictionary which the software knows or has already identified. If a part of a code in a file which has already been infected can be encountered in a dictionary, it can move on to the following actions. First of all, it can try to repair the file, removing the virus from the file. Then, it can put the file in quarantine, the file remaining inaccessible for all the other programs and for the virus, so that it cannot spread. Last but not least, it can move on to deleting the infected file.

In order for the software to be effective on the long run, you need to approach the virus dictionary on a regular basis and to download the updates in the virus dictionary. The users who have a civic spirit and who have technical skills, as well as the ones who want to help the software find the viruses in no time can send the infected files to the authors of the antivirus software. This software analyzes and includes removal characteristics and information in its dictionaries.

The antivirus software usually analyzes the file when the operating system of the computer is created, opened, closed or when it is sent through e-mail. This way, it can identify a known virus as soon as it reaches the computer. System administrators can program the software to examine all the files from the hard disk of the computer, this examination being done using a certain criterion.

There is another very useful technique of neutralizing the malware in your computer and this technique is known as white listing. Instead of looking for malware which it knows, the technique prevents the execution of all the computer codes, except for those which have already been identified as being reliable and safe. There is also the self denial, its well-known limitations being avoided when the software tries to keep the updates of the viruses.

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