The Symantec Corporation has not only distributed but also developed the antivirus, also an anti-malware since 1991, known as Norton, which is part of the Norton series of computer security products. The Norton Antivirus makes use of signatures and heuristics to identify viruses effectively, as well as provides additional features such as phishing protection and email spam filtration.

Panda security has developed an antivirus software called the Panda Cloud Antivirus. The free edition of Panda Cloud Antivirus is also available in the paid version of Panda Security. This antivirus is cloud based, whereby a remote server can be utilized, and without using the processing power of the system, files can be scanned.

PCProtect is considered to be an all-round security solution. PCProtect is not only a security product that offers antivirus services but also has a VPN feature along with a utility component. Apart from the VPN, utility, and antivirus services offered by PCProtect, it also offers users and their system features such as firewall, scheduled system scan, identity protection, browser manager, system optimization tools, password manager, etc.

Kaspersky Antivirus, which has been designed by Kaspersky Labs, was formerly also known as Antiviral Toolkit Pro and provides protection to the users’ computer systems against malwares. It is mainly designed for Microsoft Windows computers and Mac OS computers, and can be used for both business computers and home PCs with both these operating systems.

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.

Any file or program that is harmful to the computer is known as a malicious software or a malware. Trojan horses, viruses, spyware, and worms are all forms of malware. Monitoring the activities of the computer users without authenticating, deleting, encrypting or stealing sensitive data, etc., are some of the activities that malicious software carries out.