McAfee, Inc
Double Protection - Antivirus Firewall Software PDF Print E-mail

Many people are confused by the antivirus and firewall as one but these are two different programs having their own unique capabilities to protect your computer from intrusions and virus. A firewall gives protective cover to your systems while blocking access whereas antivirus locates any virus, scans the system and removes it.

Many of the companies incorporate both the features of the antivirus and firewall making it most adequate antivirus firewall software to give your computer full protection.

Firewall works in two different ways- it first analyzes and then checks to see if the information in the data is complying with the rules which could be configured. The analysis is done to know about the IP address it is coming from and the content which it has. The program also shows whether application is able to send or receive the data through the port it is connected to.

Since last few years, antivirus programs are coming with much advanced heuristic detection system and now as in 2010; there is antivirus firewall software with more developed protective features with best checking system and even analysis of file reputation system. Many of the antivirus firewall software systems have also incorporated many technologies like in the Cloud making it more convenient and effective for users.

Which program should be preferred? Should we prefer antivirus software and firewall separately or should we use the software having the features of both the programs together? This is the question that puzzles most of us. I suggest it is better to choose the software having both the features together as it is more effective, cheaper and easy to use. Combination of both the firewall and antivirus is the best suggestion and comes both free of cost and paid. You can choose anyone, which you feel is more effective for you.

Antivirus firewall software vendors have shifted the marketing crosshairs to Small office and home (SOHO) users by providing them with alternative defense against hackers, viruses and other malwares that infect information technology. These antivirus and firewall developers offer a scaled down alternative to purchasing expensive firewall appliances and intrusion detection hardware big companies spend on. As a SOHO user, one should at least know the rudiments of antivirus firewall software and what and how they work. In the long run, this knowledge will help a user maximize the effectiveness of his software investment.

Antivirus firewall software has three main parts. These parts work in conjunction with each other thereby increasing their defensive capabilities threefold compared to working alone.

The first part is the antivirus software which primarily responsible for detecting viruses that comes from Trojan horses, emails and worms. It does the job of periodically scanning the computer system for malicious code that could have infected it. It cleans the infected files. It also quarantines infected system resources and sends it to the vendor or developer for research and a possible solution.

The antivirus also scan incoming traffic from email, browsing activities, downloads, file transfers and network traffic for any signs of security breach. It does all this in real time. A proper antivirus firewall software engine also updates its core programming and virus database with a central server from time to time as viruses are churned by the hundred every day.

The second part is the firewall software. The task of monitoring all kinds of traffic into the system rests on this software. All computer systems communicate with each other whether via internet, local area network, vpn or wireless network using data packets. A firewall software analyzes these data for corrupted and altered packets. It drops these packets if it finds it a threat based on user-configured or heuristic scans or a set of rules. Trojan viruses sometimes cannot be detected by antivirus software but an antivirus firewall software can detect its activity and instruct the antivirus to quarantine the source.

The third part is the antispyware software. Spywares are mellowed down viruses that hide inside a computer system not to destroy it but to gather data. Even legitimate corporations are employing these strategies for their marketing campaigns. Some spywares also gather credit card details and other sensitive information which can be used for blackmail and other nefarious schemes. Antispyware software prevents this malicious code from sending out information out of a computer system with the help of the antivirus and the firewall.


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