Antivirus Is Protective Software Computer Science Essay

Antivirus is protective software designed for protecting your computers system & smart cell phones against Virus, Trojans & Hijackers etc. These all Viruses, Trojans & Win32 etc are called Malicious Software in computer world. All Antivirus software run in the background at all times to protect & defense your computers system & smart cell phones & some antivirus are automatically updated through internet & some antivirus are needs manual updated through internet to protect your systems against Malicious software.

Introduction:

Antivirus software provides an many essential layer for multitude of the Virus, win32, Trojans & worm etc. The first document removal of the computer viruses was written by “Bernd Fix”. There are two types antivirus application in the computer world so that the time of the “Atari ST” platform designed in ‘1987’ & the first one was “G Data” & second was “UVK 2000” made by “Bernd Fix” in ‘1987’.The word ‘Antivirus’ is come from the word “Antibiotic” which means implies combat with an invading force of the programs. “Fred Cohen” designed the strategies relative to an Antivirus software & program in ‘1988’ to solve the virus problems. The old & previews years Antivirus software are not so good because those software only detected the Virus & Spyware etc & remove it from your computers system & damage your some operating system files inside your computers & now AntiVirus software much better than old ones because it detected the virus & remove it without deleting your operating system files inside your computers & it also fight against new malicious software which come from internet network. Well in the preview years Antivirus software are not completely free downloadable on the internet means you could only find some antivirus software with trial version & now Antivirus software are completely free download without trial version . New Antivirus also checked the incoming & outgoing mail, email attachments etc. It also have internet security for internet threats.

Advantages and Disadvantages:

Antivirus software is very useful in the preventing, controlling, virus & many more viruses program, which can damage the computers components from inside & operating system files to.

Antivirus software are used for the methodologies for searching killing Viruses& some of the well knows patterns of computer data & programs.

Antivirus programs are very effective against the viruses program, whose is the biggest threat for your computer systems.

Antivirus program has some limitations & drawbacks on the other hand, which effect on the computer system performance.

In the computer world, inexperienced users can have many problems with the antivirus programs or software such as inabilities to understand, threats of the software & success of the antivirus programs & software are dependent on the ability of the user to understand Or knowing the right kind of balance between the positives & negatives things in the computer world.

Antivirus software or programs can cause problems during the installation window in the computer system or upgrade the Windows Service packs in the computer system.

Antivirus software can be hampered some few software programs because it used it own firewall to block application to store in the computer system. e.g. True Crypt.

Some Antivirus program will not knowing by the policy assessment before make it own policy when it install in the computer system.

There are three major types of detection which is used to identify the potential threats in the computer system such as: Signature based, Heuristic based & File emulation method.

Signature based detection:

In this method, you can identify the viruses & malware virus software. Antivirus software can also compare the content files of the computer system to dictionary files of virus signatures because viruses are embed into themselves in the files shape or in pieces shape to infect the computers.

Heuristic based detection:

In this method, you can only detect malicious activity relative to viruses & identify unknown viruses in the computer system.

File emulation:

In this method, it has using the heuristic type approach which it executing the program in a virtual environment & which effect the action of the program performs & it also carries out the disinfection actions relative to the programs which run in the computer.

What is a Virus?

Viruses are the category of malicious program code & software, viruses are used for attempted to breach security value & break them & damage data of the computer system & display unwelcome messages on the display screen & when the antivirus program for gabbing user passwords on a networks are called “LOGIN.EXE”. These real “LOGIN.EXE” programs which have intruder or infect the user programs are called “Trojan Horses” & when viruses program fall into the Trojans category than these viruses program have the ability to reproduce themselves again & again until user’s computer systems slow down performance & processing to any application & it infected the your operating system

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Why Do Viruses Exist?

Now-a-days every computer virus programs are written by someone who wanted it to infect & damage other people’s computer systems & smart cell phones our world. So these Viruses program coding pass from computer to other computers system & these viruses may be not have direct effect on the some computers but it affects on the other resources like(Disk space & Memory) that’s why these viruses are harmful & it coding are very complex & it also contain some serious bugs which damages the computer system pretty badly.

How do I know if I have a virus & want to protect my computer systems?

If the someone computer systems are very running slower, freezing it & displaying error messages again & again than you should have the viruses in yours computers or operating system than u must install Antivirus software & scan your computer system with latest internet updated of the Antivirus programs security to clear your computer with viruses.