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. However, the antivirus version of Kaspersky for the computer systems with Linux is only designed for business consumers, and not for home PC users. Protection, detection and removal of invaders such as Trojans, worms, viruses, adware, spyware, keyloggers, auto dialer and other malicious tools is done in real time by Kaspersky Antivirus. This antivirus also gets rid of rootkits, which can be very harmful to the PC, after its immediate detection. Through the service of Kaspersky Security Network, Kaspersky Antivirus includes the facility of instant automatic updating. This service enables the security product users from around the world to detect malware and minimize the time involved in the provision of protection against the recent security risks that could possibly target the computer system. Kaspersky Antivirus stops itself from being disabled by invaders such as malware and viruses and can only be done so with the permission of the user.

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. Ensure that you use a reliable antivirus or antimalware software to keep your devices safe from unethical cyber activities. Here’s everything you should know about malware. Types of malware There are various types of malware which have unique characteristics and traits. A malicious program that executes and multiplies by infecting other files and programs is known as a virus which is the most common form of malware. The self-replicating malware that doesn’t need any host program but can spread without the interaction of directives and humans from the malware authors is the worm. The malicious program that has been designed to appear like a legitimate program after being activated right after the installation is a Trojan horse which can carry out functions which are malicious in nature. The form of malware which is designed to accumulate data and information of the users watch out their activities without their knowledge is called spyware.

One of the best antivirus software in the market which protects the computer system from various malicious intrusions such as spyware, viruses, Trojans and rootkits extremely effectively is Microsoft Security Essentials, stylized as MSE. Microsoft Security Essentials was initially released on the 29th September, 2009. It works as an intrusion detection system as well as an antivirus system. As per the license agreement, the Microsoft Antivirus free version is allowed to be used by small businesses and home users. Microsoft Security Essentials replaces both, the free Windows Defender that protected the users from spyware until Windows 8 was launched, as well as Windows Live OneCare, a subscription-based antivirus product that was commercially discontinued. It was replaced by the Microsoft Security Essentials. The construction of the Microsoft Security Essentials program is the same as other antivirus products and scanning engines that have been developed. Microsoft Security Essentials also provides facilities and features such as real time protection that constantly keeps a check on the system, scanning of the new files as and when they are either downloaded or created and also disabling unavailable threats which it detects. However, not all good things come together all at the same time. The same goes for Microsoft Security Essentials.

An email virus is a harmful computer code which is usually sent as an email note attachment or as a link to another site. It becomes harmful if it is activated and may lead to the loss of information or data stored on the computer hard disk. An email virus would probably look like this: It would be from someone who you do not know. It would include information that you never asked for or requested and most importantly, it will include an attachment or a link. When you log into your email account and receive an email in your inbox, make sure the email is from someone that you know and check the subject of the email before opening. If you feel that the email is suspicious, then the best thing to do is to delete the email before you open it. If you have already opened the email then avoid downloading or clicking on the attachments. Types of email viruses Email viruses are of different types. The cybercriminals work vigorously to boost their malicious email messages and tactics of email hacking, accompanying malware. If your email client is opened to scripting, then your system would get infected once you open the message or the email that has been sent to you.

Today’s technology lets you synchronize most of the electronic devices online and with each other, hence it is necessary for an individual to install a powerful antivirus software to keep the data safe. The interesting concept that most of the antivirus software provides is the free trial subscriptions so the customers can go for a test run before they finalize which paid version to purchase for their system or business use. You may not get to access all the features of the antivirus software but you can be sure to use the basic routine scanning and security measures until their expiry. The difference between a paid and free antivirus version is that in the paid version you get to enjoy complete functional features with additional tech support while performing background and on-demand antivirus cover as your system runs. The free trial version of the antivirus will not provide you with additional and advanced features. Once the free trial of the antivirus expires, you are more vulnerable to threats as it does not update virus definition files. Here is a list of free trial antivirus software that is available this year. BullGuard The BullGuard antivirus software comes in four different packages.

Comodo Antivirus provides a great protection for one’s daily work on their computer systems and no interruption takes place when one works while Comodo works surreptitiously in the background. This antivirus is considered one of the best as it helps clean your system and also has features that include malware blocking tests, antivirus comparison tests etc. It is known to have Comodo Cloud-based security that does scanning from the Cloud and renews automatically and is up to date with all defined modes of viruses. There is a feature named unique default deny architecture that protects against zero-day unknown threats. Comodo can also isolate threats and vulnerable malicious codes with the help of automatic sandboxing technology. It protects the system from malicious codes with the help of defense technology. It also has 24*7 customer support and lives support. Comodo is known for its great user interface as well. It has one of the best, fast Cloud-based scannings and also improves efficiency and performance. It also has the capability to detect every hidden file and bring out the malware from the crapware and makes your system always safe. The free Comodo Antivirus was awarded for the fast scanning in seconds and Cloud-based service.

AVG AntiVirus software got its name from its first product called Anti-Virus Guard which had an entire lineup of AVG antivirus free download software which was developed by AVG technologies (itself a subsidiary of Avast). The AVG virus protection is available for Windows, macOS, and Android. The advantage of AVG security package is that it is free, and is one of the best antivirus software that has been reviewed. It is one of the best choices for malware removal and you needn’t have to pay extra for advanced features if your main purpose is to just protect your device from malicious links and threats online. AVG free software is a great choice for protecting your gadgets from malware. You can even use AVG AntiVirus as a second layer of protection to the system. You can choose from the paid or unpaid version of antivirus according to your system requirements. These two will not act against each other and slow down your system. The disadvantage of AVG AntiVirus is that it slows down the performance of the system, affecting the files when the scanning takes place. By the end of 2006, there began a new era for AVG AntiVirus FREE software.

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. A user browsing the Internet without safety is at a huge risk of a virus attack. Having an antivirus installed in the system is important as it helps protect your database, networks and the system from cyber crimes and virus attacks. Within minutes, your system could get hacked if you click on unwanted pop-ups and emails. Some of the most basic properties that an antivirus should have are: Scanning of files and directories /partitions to quarantine viruses. Scanning specific partition or CD on request Removing viruses or malicious codes by informing the user and cleaning the virus on permission The real-time status about the PC is updated to the user Here are the best antivirus software available in the market today Comodo Antivirus This is one of the best antivirus software and almost always tops the list of the best free antivirus software of 2018.

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. The initial version of MS Windows was operated on DOS. In the 1990s, one saw it being used for Windows Graphical Shell. When Windows 95 was developed in 1995, it was created as a separate operating system which did not need a DOS license. Majority of the computers stopped using DOS directly post the discovery of Windows. DOS accessed hardware directly, making it perfect to be used in embedded devices. The concluding versions of DR-DOS still target this section of the market. ROM-DOS was employed by Canon Powershot Pro 70 as an embedded system. The first version of DOS was very simple and looked like an operating system called CP/M. The later versions were more sophisticated as they had features of a minicomputer operating system.

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. The antivirus utilizes this method by performing the commands of a program in a special machine, allowing the antivirus to simulate what would happen if a suspicious file was executed, while keeping the suspicious code isolated in a real machine. The commands are analyzed as they perform the functions and get monitored for viral like activity like replicating and overwriting, hiding the suspicious file. If any virus action is detected, it is flagged and marked as a virus and the user is alerted. Another method of heuristic analysis is when the antivirus program decompiles a suspicious program, and analyzes the machine code within. The source code in the suspicious file is compared to the source code found in known viruses. If a certain percentage is found to be matching, the file is flagged and the user is alerted about the presence of a potentially harmful virus.

Software installed on a computer system without the knowledge of the user is known as the spyware. Although such software are installed for reasons that are not meant to cause any harm or damage, they could possibly end up exploiting the privacy of the users, thus causing a tendency of being abused. The spyware software installed for reasons that are not meant to cause any damage are known as tracking software. In order to keep a watch over their employees’ activities over the Internet at the workplace. These spyware software are installed in corporate systems. At home, parents and guardians may install something known as a keystroke logger that would keep a track of the child’s activities over the Internet. An online advertiser makes use of cookies to check out the web pages visited by the user to determine advertising strategies. If the user whose Internet activities are being monitored is made aware of the fact that the data is being collected and is told that they hold the ability to know with whom this data so collected is shared with, then this program of collecting data cannot be referred to as a spyware. When the tracking software is overused, the privacy of the individual is significantly affected.