Most computer users and system administrators, many of them with their own bitter experience, have come to realize that antivirus protection is, in some way, essential. But it is not easy to scale antivirus solutions for home users or small business users to meet the needs of the corporate environment. Therefore, you should carefully consider the choice of antivirus solution for your company network, as it should be possible to scale this solution in the future with the growth of your enterprise network.
Antivirus software uses several different methods to detect and protect against malicious code:
Antivirus software can also scan files that are already on your computer hard drive and files (such as email messages and downloaded files) that are written to the hard drive when they are downloaded. The program can scan files before they are opened, and most antivirus programs are built to include the ability to scan files in the process of using them.
Unfortunately, those who write viruses have many ways to bypass antivirus programs or defeat them:
The traditional method of protecting against viruses and other malware is to install an antivirus program on each workstation and on servers connected to the Internet, such as email servers and web servers.
Host-based antivirus software is usually good at detecting viruses in e-mail and is essential for protection against viruses that are installed locally (for example, on a removable hard drive, USB key, or memory card). But it does not protect well against websites and viruses that come with instant solutions. Even more important is that it does not protect the network itself; The latter must be hit on a local machine to detect the virus.
Host-based antivirus software can also reduce productivity because scanning for viruses takes quite a lot of processing time. When scanning with an antivirus program, other consumer programs may not work properly. Programs running in the background can also prevent some consumer programs from installing properly.
If a company relies on a host-based antivirus to protect its network, it may overlook laptops that bring employees to connect to the network, or home computers from which employees access the network remotely. You may not easily be convinced that an updated antivirus program is installed on these systems.
Finally, host antivirus (AV) programs are controlled by individual users. Users can disable the antivirus program, change its settings, or open quarantined files.
On the other hand, host-based antivirus software is relatively inexpensive and easy to install on small networks.
Network antivirus solutions are deployed at the Brandmauer or server level. Brandmauer-based antivirus solutions stop viruses and worms on the perimeter of the network, so the latter are never found on the network. There are several ways to implement network antivirus solutions:
Software installation and maintenance can be cumbersome, costly, and error-free (machines may be vulnerable to outdated software). As your network grows, you should consider deploying a network solution that allows you to establish centralized control over the detection, blocking, and deletion of viruses.
At the enterprise level, Fortinet or Sophos solutions integrate antivirus, content protection, and IDS features through hardware clustering. This creates a good scalable solution as new cluster nodes can be added as your needs increase so you can maintain optimal productivity as your network grows
If you are interested in learning more about virus protection solutions, please contact us at our office for advice.