Avira antivirus is a part of the Avira Operations GmbH and Co. KG which is a Germany-based security solutions company mainly working towards Internet security. Founded and developed in 2006, this antivirus application has been actively developing and innovating itself, while working effectively towards preventing online threats and virus. It has around 250 million active subscribers who have taken Avira on an annual licensed format.

An antivirus software is a computer program that detects, blocks, quarantines and protects your PC or mobile devices from viruses and malware that not only steals but corrupts the data, networks, and infects your entire system. Viruses are many in nature such as Trojans, worms, adware, spyware etc. The Internet is a tricky space as there are malicious content and links that can attack any system at any time.

Everywhere across the world, ransomware has been a threat to the daily functioning of government as well as private offices and companies. The name ‘ransomware’ suggests holding the individual or the company to ransom. Unless paid, the ransomware hackers tend to publish data and information stolen from the victims or block their access to their own data.

Disk operating system, usually used as a short form for MS-DOS was developed by Microsoft for IBM. It is compatible with every personal computer. DOS is a family of disk operating systems and consists of MS-DOS and a new version of PTS-DOS, ROM-DOS, IBM PC DOS, Dr-DOS, Free-DOS, etc. There are over a dozen operating systems under the name of ‘DOS – the others include AmigaDOS, TRSDOS, Commodore DOS, AtariDOS, Apple ProDOS, and Apple DOS, among others.

Heuristics is a method/way by which computers and antiviruses can protect the systems. It is used to detect unknown viruses as well as their new variations. Heuristic is an expert-based analysis that determines if the system is susceptible to a threat or an attack. The weighing method is by multi-criteria analysis and is based on available statistics.

What is a DoS attack? A DoS attack means a Denial-of-Service attack, which happens when a single hacker attacks a single target computer. So, one computer and one Internet connection is used to flood the server with packets. The cybercriminal sends in a large number of legitimate-looking requests to the server in a way that the server really cannot distinguish between viable and non-viable request.