In the technological world, one is well versed with the fact that there are several problems and errors that can take place. One of the most frequently experienced problems that users experience and that are actually intentional by nature are those of viruses and Trojan horse attacks. Even Linux operating systems, which are otherwise known to be very efficient and more secure operating systems, are not excluded from the possible attacks of such invaders.

Therefore, the use of an antivirus is of utmost importance even if you have absolutely safe browsing activities. Since Linux is gaining popularity as one of the most secure operating systems, users should know that it is still not fully free from vulnerable Internet threats. For instance, if a Linux-based mail or file server is being used, then there is a possibility that the files which are infected with malware or viruses can get uploaded into the operating system. Such files are cleaned by getting them scanned with a secure antivirus, which needs to be installed into the system to safeguard it and the data it holds.

Here is a list of antiviruses that have passed the antivirus tests and proved to be useful in protecting the Linux operating system from malicious invaders such as viruses, trojans and other malware:

• ClamAV : This is a very popular antivirus product which is popularly used on systems that run on the Linux operating system. The ClamAV antivirus software is popular not only because of its speed but also because it is the best operating directory of the Linux mail server in combination with the Milter Sendmail interface. Since ClamAV utilizes the CPU at an optimal level, therefore it is considered to be a high-performance antivirus software product.
• Avast : Avast Antivirus software product facilitates an easy to navigate interface and is also considered to be one of the best choices among the top antivirus software products for devices with the Linux operating system. The antivirus scanner of Avast Antivirus software enables the user to examine the web pages that they have visited and also to examine the files that have been downloaded or the emails that were received. With the on-demand scanner that is available with Avast Antivirus software, the user can run a manual scan any time they want to. Since the Avast Antivirus software belongs to a cross-platform, it is also compatible with various other operating systems. The best thing about this antivirus software product is that the user can download and setup the Avast Antivirus on to the Linux system for absolutely free.
• Bitdefender : The license for this antivirus software product is available in both free as well as paid versions. The features mostly found in the Windows AV program can also be found in the Bitdefender antivirus software product such as real time shielding, active virus control, and intrusion detection. Some of the viruses that aren’t easily detected by the giants of the antivirus industry are detected by this one. These are detected by Bitdefender easily, hence giving it an edge over its rivals. For instance, the rootkit which is mostly undetected by the other antivirus software products is easily detected using Bitdefender and saves the system from massive destruction that the invader could cause to it. The other features that come in this antivirus software product include parental control, firewall, and http scanner that can protect the user if online transactions are done. Unlike the standard antivirus software products, Bitdefender comes with a peppy graphical interface that permits the user to scan even single, individual files. The antivirus software product, however, has a drawback – this antivirus is required to be bought for over 5 systems running on Linux operating system as it cannot be only purchased to be installed for a single computer system.