Which antivirus is better kaspersky vs dr web. Kaspersky, Nod32, Avast, Dr

There is a great variety of software products of this kind and their number continues to grow every year. By preparing this article, I have already sifted out the mediocre options and selected the four most famous antiviruses, so that now, after examining their features in detail, I can find the best one.

Which antivirus is better - Kaspersky, Nod32, Avast, Dr. Web?

Degree of protection

The main criterion for selecting an antivirus is its ability to detect malware and then isolate or destroy it. Not every program copes with this task to the fullest, but only shows false activity. What is the best antivirus for this component? Let's get a look:

  1. Kaspersky has far outstripped all its competitors in terms of protection. Its mechanisms allow at high speeds, in real time, to block all external threats even before they penetrate the computer. Even malicious code stored in the archive, the antivirus will calculate it and inform the user about it. Of course, you will have to pay a price for the wide possibilities, but more on that later.
  2. Nod32 contains the entire set of tools necessary to prevent virus programs from entering your computer, and if they do manage to penetrate, it will be able to give them a fight thanks to the tools for deleting and disinfecting files. Unfortunately, everything is good only in words, but in fact there are enough security holes for some viruses to be able to crawl through them. Plus very annoying a large number of false positives of protection on absolutely safe files(you have to constantly pull them out of quarantine and add them to exceptions).
  3. Avast antivirus, as for free software, does an excellent job with its tasks - it fights various kinds of dangers, periodically scans the system and monitors operations with files and folders in real time, which makes it possible to quickly eliminate almost any threat. Even while the on-screen display is windows screensavers Avast is already starting to check for the presence of malicious code in the system.
  4. Dr. Web is an excellent solution for those who want to protect their computer from unauthorized intrusion from outside. The program successfully fights against file viruses, Trojans, polymorphic viruses, spyware and a bunch of other unwanted guests. The mechanisms of operation are designed in such a way that most of the currently known viruses are not able to interfere with the operation of the algorithm or bypass it.

Easy to install and configure

There should be no problems with installing and configuring security software, because its priority task is to start protecting your computer as soon as possible. And best of all, if before that you do not need to climb in the options for a long time.

There is not much to write about at this point and it is difficult to determine the best one, since most antivirus programs have long since come to a certain unified working model. To install each product, you just need to run the executable file and follow the instructions. Activation for paid versions occurs by entering a code and username, after which all functions will become available, including automatic update... To fully start using the capabilities of the free product, you will have to go through the registration procedure. All monitored antiviruses have all the main services connected by default - real-time protection, scheduled scanning, and others, without which it is impossible to guarantee the security of the system.

Load on computer resources

One of the most important criteria in choosing an antivirus program, especially for owners of few powerful computer ov. If the program is poorly optimized or overloaded with unnecessary services, the user will experience performance problems.

  1. No matter what the experts who are trying to convince us that Kaspersky Anti-Virus does not load the system, it does not sound convincing, because any user can notice with the naked eye a significant decrease in performance during scanning and slow file opening, which is associated with the anti-virus that constantly hangs in the processes. monitor. The salvation of all of the above is a really powerful PC configuration.
  2. Nod32 has no problems with speed. Moreover, it is probably the fastest of modern antiviruses, which is focused on the minimum use of computer resources. I myself have long been a fan of this antivirus precisely because of its insignificant effect on computer performance. At one time, Nod even stood on a computer with 256 megabytes of RAM.
  3. Avast is famous for its low resource consumption and low computer resource requirements. Even on low-power systems, scanning is fast enough and practically does not affect the applications running in parallel by the user, be it a video editor, browser or 3D application. In February 2010, Avast was awarded the Fastest Antivirus Monitor.
  4. Dr. Web shows average results in terms of load on computer resources and is somewhere between Kaspersky and Nod. Copying files, booting the system, browsing the web - all of this happens quickly enough. The only thing you can find fault with is the compression speed of ZIP archives when the maximum degree of protection is enabled. At this moment, the load increases significantly.

Additional functionality

Modern antiviruses not only fulfill the main task assigned to them, but also solve a number of other problems, for example, block users access to phishing sites, check the integrity of the registry, and so on (each program has its own characteristics).

  1. In addition to protecting against viruses, Kaspersky fights against adware, checks Java and Visual basic scripts, analyzes and blocks vulnerabilities in the Internet Explorer browser (this, in my opinion, is an unnecessary function, since this browser itself is a walking vulnerability and no one uses it). Also, Kaspersky Anti-Virus has a set of tools with which you can create an emergency recovery disk.
  2. Nod32 doesn't have much additional opportunities, like its competitors, but all the little that is provided to users is implemented on high level... For example, a protection module against junk mail that allows you to weed out suspicious letters, thereby increasing the security of work, or a personal firewall, which is many times more reliable than a standard solution from Microsoft or other manufacturers operating systems.
  3. Additional Avast functionality varies greatly depending on the version you choose. Of the shareware assemblies, it would be best to take Premier, where there is an anti-spam filter, the ability remote control PC, firewall and many other services. And if you fork out for a paid license, then the most functional will be Endpoint Protection Suite, which has incorporated the capabilities of all other versions and has its own unique ones.
  4. Doctor Web also boasts a wide additional functionality- here is the opportunity Reserve copy data with their subsequent recovery, and centralized protection management corporate networks, and a behavioral analyzer. In general, the list can be continued for a long time, especially since the company is actively working on improving its product.

Updates

Attackers never sit around and do nothing but invent new ways to harm you and your computer. Therefore, it is very important that the antivirus updates its defense mechanisms in a timely manner. Which one is better for this component?

  1. Kaspersky AV is updated in automatic mode and often enough. Employees of the company, in cooperation with users, look for new vulnerabilities and replenish the anti-virus databases, the register of phishing and other sites with potentially dangerous content. If automatic updating is disabled (in order to improve system performance, for example), you will have to launch it from the main menu of the program.
  2. Nod32 is updated as critical updates of antivirus and other databases are released. If desired, you can configure the launch of this function according to the task scheduler, at a time specified by you. For example, setting the check for updates only during the first start of the operating system and no more than once a day. It makes no sense to turn off auto-updates, since they weigh a little.
  3. The Avast functionality allows not only downloading new anti-virus databases in a timely manner, but also timely updating the version of the program itself, without reinstalling it. To do this, just go to the appropriate section of the menu and see if a newer version is available, and then, if necessary, start the update process. This is a rather long procedure if a lot of time has passed since the last update.
  4. Doktov Web offers us a slightly inconvenient option for updating the program version, in which it is necessary to remove old version before putting in a new one. If during the uninstallation an error occurs, the system remains "stubs", users are encouraged to use the emergency recovery utility or contact technical support. Everything is in order with the updating of the anti-virus databases - it is carried out in automatic mode.

Mobile versions

In this paragraph, we will consider antivirus software from the monitored manufacturers, designed for mobile devices- tablets, smartphones, pocket computers. We will briefly describe the advantages and disadvantages of these programs, and we will try to identify the best.

  1. The mobile version of Kaspersky called Kaspersky Mobile Security works with Symbian, Android and Windows Mobile platforms, providing electronic devices using these operating systems, a full range of security services. These include anti-virus protection, SMS spam protection and much more. Particularly noteworthy is the Anti-Theft function, which allows you to block a stolen / lost smartphone by sending an SMS message with a code.
  2. The solution from ESET (Nod32 Mobile Security) also covers the three mobile platforms listed above and does an excellent job with its main task - protection against viruses and spyware, including the main problem of smartphones - applications capable of automatic order send SMS messages from your number to any other. Like its older brother, the mobile version is gentle on system resources.
  3. Avast supports work with PDAs running on Android, Palm, Windows CE systems. The rest of the popular platforms are unfortunately not available. It is delivered in two versions - the regular one, which contains only a basic set of features, and the Premium, which has advanced functionality.
  4. Mobile version of Dr. Web is extremely popular with users portable devices... For example, in the Russian-language Android Market, this antivirus application ranks second in downloadability. As in the Kaspersky program, there is Anti-Theft technology, black and white lists, which allow filtering calls and SMS messages from other numbers.

Technical support

Large antivirus companies usually provide their clients with additional online or offline help - additional resources, Email, phone number. Let's evaluate the effectiveness of the technical support of our four contestants.

  1. Kaspersky Anti-Virus developers are actively working on a solution technical problems related to the operation of their product - customer support works around the clock, both online and offline. Unfortunately, many will be upset by the fact that older versions of this software (1.5-2 years ago) are no longer supported, and for some even updates are not released.
  2. ESET, which develops Nod32 and other antivirus solutions, has a very advanced system online help... There is even a function where you provide a tech support employee remote access to his computer and he fixes all the problems on his own. Alternatively, you can simply present your problem to one of the specialists by calling or sending an e-mail.
  3. Avast has a comprehensive reference guide translated into over 40 languages. Therefore, almost any common problem can be solved without even contacting the technical support service. Nevertheless, you can always ask your question on the official forum, where not only specialists, but also other users will listen to you, or fill out a questionnaire on the website.
  4. Technical support Dr. Web allows customers to get an answer to their question in the shortest possible time. If it was not possible to solve the problem on your own, with the help of the Virtual Engineer, the company's employees will gain access to your PC and fix the problem (of course, with your consent). In addition, if any file seems suspicious to you, you can immediately send it for analysis.

Let's summarize

Choosing the best antivirus product is not as easy as it seems at first glance. There is a fairly powerful protection against Kaspersky, but it does not spare computer resources - you have a powerful computer and want to protect valuable information, this is for you. There is Nod32, light and fast - an excellent solution for an office or home gaming PC, the system does not overload, it somehow copes with the duties. And do not forget about shareware Avast and Dr.Web - they are suitable for those who do not want to spend money on buying an antivirus (we do not take into account piracy).

In general, each program has obvious advantages on some points and opposite indicators on others. Therefore, each user will have to decide for himself what is more priority for him - speed, safety, price or something else.

Reviews

Thank you very much for the article. I completely agree with the author of the article, but, however, I cannot help but add about such antivirus as MSE ( Microsoft Security Essentials). It is free, has constant renewal virus databases, works quickly, is flexible enough in use. I can't say that he was worse - he never "missed" an extra virus. I also highly recommend Dr.Web's Cure IT utility. It is free and great for one-time or regular PC checks, as well as for treating PC in critical situations, in safe mode etc.

I talked on this topic with familiar IT hackers, all as one believe that buying antivirus software is a waste of money, because each of the products on the market can successfully fight some viruses / spyware, but they will just as easily overlook others, and may not do both well. The best defense computer - compliance with basic network security rules. The most acceptable way that I found for myself is to install a Linux-based operating system - they either have no viruses at all, or they are, but they are very unpopular. Plus, the security policy is implemented in a different way, the rights of remote access to the machine. True, it is very possible to infect a computer with a virus; viruses are written in 99% of cases under Win, this will not affect the performance of Linux in any way (another matter, it can damage everyone's favorite "windows"). Accordingly, there is no need to install an antivirus, although there are some.

There is no unequivocal answer to the question of which antivirus is better. I do not like any of the listed antiviruses. I have been using VIPRE for many years now, in my opinion this is the best antivirus. But periodically I also clean it with herdProtect. It seems so far God has mercy.

Polina, by the way, I remember when I was using Windows, and inadvertently picked up viruses - AVZ helped out a lot. Lightweight, simple script-based antivirus. It helps with a bang against known viruses or exploits, there is a special community that develops scripts for treatment. And if not, then you can perform a system scan yourself and send the log file for analysis. Virtual healing gurus always help

On Linux, there really are no problems with viruses, but this system is not suitable for everyone. As for the issue of preventing infection, it is worth noting that the main stream of viruses (about 90%) is usually associated with executable files downloaded from the Internet, or those that are executable, but, so to speak, are disguised as other types. For example, a torrent downloaded from an unreliable resource. So, in order to secure this primary source, you can use browser add-ons that check the reliability of the resource, for example, "WOT" for Mozilla Firefox... Of course, you need to watch out for yourself - a suspicious resource will always give itself out overly rubbery typesetting, "stretched" comments. There are also special add-ons that allow the browser to scan the file itself for a virus, block self-opening windows. If you follow these precautions, then the chance of contracting the virus is extremely small.

I used it while sitting on Linux. Either I'm getting on in the wrong place or are the sites all around suspicious. I'm tired of constantly poking a button to close the warning and confirm that I intend to switch to an "unsafe" resource. Yes, and still there is no fear that I will catch a virus, a kind of state of freedom of surfing. Therefore, I took it down. And for Win users, of course, I also recommend installing this add-on.

Sometimes the assessment is not entirely adequate, or the resource is on a third-party engine. It is quite rare for me that it fails or incorrectly estimates, perhaps now it has already become better. Maybe there are better quality add-ons, but I personally installed it, tk. it is the most popular and has the highest rating.

I don't use any of the above antiviruses, I have Mc Affee.

I also had it. Quite peculiar, once it missed a virus, another time it displayed unnecessary messages. How does he work with you?

Just fine, only sometimes he swears at a lot of sites on the Internet. Moreover, if he misses something, then Panda will finish)

Yes, it is difficult to say which antivirus is better, Kaspersky is the most popular one for sure. I used to sit on windows and catch viruses with all antiviruses - Kakspersky, Nod32, Avast. Then I switched to a poppy and I'm not worried about the best antivirus, I don't use it at all and all the rules. But I'm afraid that soon the Mac will become popular and will have to worry again about choosing the best antiviruses.

In general, it is advisable to never install a large number of antiviruses at the same time, because they can "detect" each other as viruses. keep them in quarantine. In addition, the result is an unjustified load of the RAM.

I use Kaspersky and Avast antiviruses on different computers. At the same time, you definitely do not need to install more than one antivirus, what are you guys. And what is better is an eternal question, just like in comparing a Mercedes and a BMW, someone is more than one, someone else. It is probably more correct to ask the question not which antivirus is better in general, but to divide it into criteria:
Which antivirus is the fastest
Which antivirus is the lightest
Compare some settings
Etc
But in general, it is impossible to objectively answer the question of which is better: Avast, Doctor Web, Kaspersky, NOD32.

If your computer is weak in hardware, then nod32 is suitable for this case. If you think that your computer is of average "health", then Avast and dr.web are suitable for this. Well, for a powerful computer, kasperskyi is suitable, well, this is my opinion, because it overloads the system. Also, never put nod32 and lasperskyi on medium and weak computers in place, because it will freeze very much.

I use Avast, well, I constantly say "Threat" well, almost every 12 hours, "The virus database has been updated." I have been using problems with viruses for almost a year, and if they do, it is entirely my fault. once again skip them myself)

I use Avast, completely satisfied. Doesn't get bored with notifications and does a great job.

Everyone has their own opinion, but I still think that Kaspersky is better. I used to have a doctor on the web and he didn't really help, in other words, I had to demolish the system and install a new one. And when I installed Kaspersky, initially I didn’t like that it blocks almost everything, but now I have been using it for about a year and I don’t complain since not a single infection gets. Friends told me that Avast is still good. And so I do not really know, since I am not a programmer and not an expert in this area.

V modern world where computer technology is very highly developed, the use of a PC, laptop, tablet is an integral part of our life. But you need to use technology wisely. If there is an Internet connection, then you need to take care of how to protect our PC from numerous harmful viruses and programs. In this case, the most important thing is to get ahead of the virus by installing an antivirus on your computer.

All over the world there are a huge number of programs that fight computer problems, help get rid of "worms". But among these all the variety, the main and most popular are Kaspersky, Nod32, Avast, Dr. Web. All these antiviruses have been fighting viruses for more than one year and are constantly undergoing updates. Below we will make a comparison to determine the leaders.

Before we start, we need to decide on the main criteria by which we can determine the significance of each of them.

Degree of protection

This is the most important criterion since good antivirus must calmly detect malware and viruses that have entered your PC. And he must do it instantly, so that it does not have time to spread over the computer and spoil everything on it. But not every antivirus can easily defeat a virus. It all depends on how "developed" the virus is and how long ago it was born. And not everyone is able to detect some viruses because of their backwardness.

Kaspersky is one of the leaders in this regard. This antivirus is able to detect almost any virus that appears on your PC, no matter how much it is hidden from the user. You won't even think that some virus wants to harm you, and Kaspersky will already try to remove it. Antivirus will even be able to find the virus that is hidden in the archive, even before it is opened. In addition to detecting viruses, in case it nevertheless manages to slip through the vigilance of Kaspersky, it is possible to completely save your credentials on the Internet, automatically backs up according to a set schedule, has a cloud for storing information up to 2 Gigabytes.

Nod32 not only allows you to detect and counteract viruses in time, but also has the ability to cure files that have been attacked by viruses, or, otherwise, delete the file altogether from the system. But you shouldn't trust Nod32 so calmly, as there are plenty of failures. In addition to detecting viruses, Nod32 can also detect safe files as well as malicious ones that interfere with the operation of the PC and take up time. Among other things, there are often inscriptions in the antivirus program - “ Maximum degree protection is not guaranteed. " Such problems can be out of nowhere, without prerequisites for this.

One of the leaders in free customer service is Avast antivirus. As for the free version, it works great. But to fight on equal terms with the giants Kaspersky or Nod32, he is still very far away. He makes a lot of mistakes in detecting viruses, and he can skip them even before scanning. Besides Avast, there is Avast and nothing more. There are no new versions at all, unlike Nod32 or Kaspersky.

Dr.Web is very advanced in terms of technology. His inner work is so complex that hardly any other program can interfere with him. It also copes with various virus programs at a high level, deletes infected objects, does not allow them to enter the computer. It does an excellent job on both outdated models and modern multi-core ones.

Easy to install and configure

Looking at all the variety of PC protection, one also thinks about which antivirus is better to install. After all, they all work with the system in different ways and in different proportions take away the speed of the PC.

In all possible anti-virus programs, there is no difficulty in installation. You just need to run the program installation file and just follow the instructions. It does not require any knowledge in this direction. To use the antivirus at 100%, you need to register. So it's not even worth determining the best or the worst here.

All antiviruses create a different load on the computer. This, in turn, in some cases, makes the PC less "alive", the programs execute everything very slowly. So which antivirus to download and install for your computer?

Kaspersky will probably be the "leader" here. It loads the PC system very heavily. This is noticed from the very first minutes of using this antivirus. During a system scan or when opening any files, this becomes more pronounced, as the computer begins to "freeze". If, nevertheless, you prefer Kaspersky, then here you need to purchase Personal Computer with higher performance.

Nod32 uses PC resources minimally and works very quickly. It is one of the fastest and at the same time does not interfere with the work on the PC. That is, practically no changes in the system will occur after the installation of the anti-virus program. To use it, absolutely any computer with minimal requirements is suitable.

Avast also spends minimal computer resources. For its operation, only minimum requirements are required and it practically has no effect on parallel programs, games, videos. System scan does fast. It is not for nothing that he was awarded the title for the fastest antivirus monitor, however, it was in 2010. Much water has flowed under the bridge since that time.

Doctor Web has approximately the same characteristics. It works almost invisibly to the user and has minimal impact on performance. True, he is slightly inferior to the same Nod32 or Avast. But, despite this, the functions and capabilities of the Web are much more than the free Avast.

Additional functionality

In addition to the main function of protecting your computer from viruses and malicious programs, each of them also has additional ones, which distinguish it from the number of third-party antiviruses.

Kaspersky automatically backs up all files on your PC, thereby protecting them from being "eaten" by a virus, and can also restore damaged files. When making payments on the Internet, this antivirus program first checks the authenticity of sites. You can also prevent children from visiting some sites by using the service “ Parental control", As well as to do it on certain days and at a convenient time.

Antivirus Nod32 also has a sufficient number of additional functions, among which are:

  • As soon as you turn on your computer, the system starts checking for viruses and other threats;
  • After the scan is complete, the computer can turn itself off if you wish;
  • It can automatically switch to power saving mode, this is with regard to using the program on a laptop;
  • Antivirus will also automatically start scanning flash cards, disks inserted into the PC;
  • When any updates appear, node32 will independently install them into the computer.

Doctor Web is constantly improving the available functions and over time there are more and more of them. They are somewhat similar to the capabilities of Kaspersky or Nod32. It also saves the data of your computer, helps to recover in case of their being eaten by a virus. For quarantine, you can use external drives, such as flash cards.

Updates

Over time, new viruses are constantly appearing on the network, as well as older, but more modified ones. For this, there is a system update to detect these nasty things.

Kaspersky is updated automatically, except if you removed the this function to make your PC run faster. Updates are very frequent.

Node 32 is also updated automatically, but only when there are critical updates on the network. Here you can adjust the frequency of updates yourself. There is no need to disable the system update, since the program itself practically does not affect the performance of the computer.

With Avast, everything is a little more complicated. The update occurs when you visit the menu, where you can both update and install new version antivirus.

If you want to install a new version of Doctor Web, you will first need to uninstall the existing one, which is not very convenient. But the update is already happening automatically and without problems.

Mobile versions

In addition to using antivirus on a PC, it is also important to install it in mobile phones... But what is the best antivirus to use on a mobile device?

A nice feature from Kaspersky on your mobile is anti-theft, which provides blocking of stolen or lost phone... And so the standard functions to protect against viruses, SMS spam.

Nod32 Mobile Security, in addition to protecting against viruses, also fights against applications that can send SMS messages from your phone uncontrollably, while the balance only decreases.

Among the disadvantages of Avast is the inability to work on Symbian and Windows Mobile platforms. Working versions of the program can have the usual set of functionality, or additional (in the case of purchasing a Premium package).

Doctor Web is very popular for protecting mobile devices. It will also help protect your phone in the event of theft or loss, allow you to create black and white lists, track messages from third-party phones and resources.

Technical support

All antivirus programs have a customer support service available. But they all work in different ways.

Kaspersky Lab works around the clock online and you will be given an answer to any question or problem in the operation of their product. But the disadvantage here is that they practically do not work with old versions of antivirus.

In addition to the usual help, employees of Nod32 can get remote access to your PC and do everything right without you. This is very convenient in the case when you are not particularly versed in its work and do not navigate the sections.

A little under the backward support from Avast. There is an instruction, take it and figure it out yourself. You can also consult on the forum, where both company employees will answer you on all the problems that have arisen, as well as site visitors, users of this antivirus.

When working with Doctor Web, if you have doubts about the authenticity of a file, you can send it to the company and they will analyze it. Just like Nod32, the Web has the ability to access your computer and fix all problems.

Let's summarize

Having considered 4 antiviruses, only one question remains unresolved: Which is the best? Each program has its own pros and cons. There is no absolute preponderance towards one or the other. Kaspersky will help protect your PC at a decent level, however, at the same time spending a lot of resources. For ease of use, as well as those who like to play on the computer online, you should consider installing Nod32 or Dr.Web, as they reduce the computer's performance to a minimum. Using Avast, you will receive minimal protection, although you will not have to pay anything for it, it is completely free.

And which antivirus is better to use is up to you. It all depends on the requirements for the program, the characteristics of your PC, the requirements for advanced functionality, as well as the ability to pay for the work and constant updates.

Introduction

To protect your computer, work information and personal data, every user of the Windows operating system wants to find and install a modern antivirus on his PC, because no one wants to one day face the loss of data, a malfunction of the PC or see a "black screen". Accordingly, the question arises of choosing an antivirus.

Reading the advertising articles of antivirus manufacturers, you come across the fact that all as one declare that their software product is the most advanced, modern and will not miss a single virus, not a single "worm", the system will be 100% protected.

This is where the real puzzle begins - which antivirus is the best, how to make your choice? How to choose an antivirus? It all starts with searching for information on the Internet: you read articles by leading experts, visit forums and study people's opinions, ask your friends, and in the end you come to the conclusion that there is no consensus, and all the answers to the seemingly simple question “are you satisfied with your antivirus "Contradictory.

I would like to make some comparison of antiviruses and at least approximately answer the question - which antivirus is better to install, I will say not all at once, but three in my opinion the most used are Kaspersky Anti-Virus (Kaspersky Internet Security), Avast! And Dr.Web.

Why I decided to make this comparison, because very often, people when choosing one or another antivirus, rely on the wrong criteria. Many people think that since free means bad, and paid, on the contrary, is good, or the more expensive the better, and everything like that. Let's get a look.

Purpose of the study: to figure out which of these antivirus programs is better: Kaspersky Anti-Virus, Avast, Doctor Web.

Object of study:Kaspersky Anti-Virus, Avast (Avast!) And Doctor Web (Dr.Web).

Subject of study:which of these antivirus programs is better: Kaspersky Anti-Virus, Avast, Doctor Web

Research objectives:

1) Explain what antiviruses are and how they work?

2) Study the literature about antivirus software from Kaspersky, Avast, Doctor Web;

3) Highlight the pros and cons of antivirus programs;

4) Conduct research among school students what antivirus software they trust;

5) Processing of the received data, construction of graphs and diagrams;

Relevance is to protect your computer, and to choose an affordable, convenient and effective antivirus.

What is a Virus?

Viruses are programs, applications, sets of scripts, macros created to destroy, steal information, infiltrate a computer, increase user privileges, and infect applications.

Computer viruses are programs that can "multiply" and secretly inject copies of themselves into files, disk boot sectors, and documents.

Revitalization computer virus may destroy programs and data.

There are more than 100 thousand known viruses in the world. There may be more than a million unknown people - no one can know the exact numbers.

What is antivirus?

What is antivirus? Let's immediately dispel one common illusion. For some reason, many believe that antivirus can detect any virus, that is, by running an antivirus program, you can be absolutely sure of their reliability. This point of view is not entirely correct. The fact is that antivirus is also a program, of course, written by a professional. But these programs are capable of recognizing and destroying only known viruses. That is, an antivirus against a specific virus can be written only if the programmer has at least one copy of this virus available. So this endless war is going on between the authors of viruses and antiviruses, however, for some reason, the former in our country are always more numerous than the latter. But antivirus creators also have an advantage! The fact is that there are a large number of viruses, the algorithm of which is practically copied from the algorithm of other viruses. As a rule, such variations are created by non-professional programmers who, for some reason, decided to write a virus. To combat such "copies" a new weapon has been invented - heuristic analyzers. With their help, the antivirus is able to find similar analogs of known viruses, informing the user that it seems to have gotten a virus. Naturally, the reliability of the heuristic analyzer is not 100%, but its efficiency is still greater than 0.5. Thus, in this information war, as, indeed, in any other, the strongest remain. Viruses that are not recognized by antivirus detectors can only be written by the most experienced and qualified programmers.

Thus, it is almost impossible to be 100% protected from viruses (it is assumed that the user exchanges diskettes with friends and plays games, and also receives information from other sources, for example, from networks). If you do not enter information into the computer from the outside, it is impossible to become infected with a virus - it will not be born on its own.

So what is antivirus and how does it work?

Basically, antivirus is a type of security tool that scans your computer for self-propagating malware (usually viruses and worms) and neutralizes it. To achieve this goal, antivirus uses a number of detection technologies:

  1. Signature detection
  2. Heuristics and approximation
  3. Virtualized simulation

Kaspersky Anti-Virus

Kaspersky Anti-Virus (English. Kaspersky Antivirus, KAV ) - anti-virus software developed by Kaspersky Lab. Provides the user with protection against viruses, trojans, spyware,rootkits, adwareas well as unknown threats usingproactiveprotection including HIPS component.

Kaspersky Lab is an international group of companies headquartered inMoscow, specializing in the development of protection systems againstcomputer viruses, spam and hacker attacks... The company is one of the five leading world developerssoftware for information protectionfrom Internet threats.

Kaspersky Lab was foundedJune 261997 yeara small group of like-minded people led by Evgeny Kaspersky

The company is owned by six employees. The controlling stake is inEugene Kaspersky... In January 2011, it was announced that an agreement had been reached on the sale of up to 20% of the company to a large American investment company.General Atlantic(the deal is estimated at up to $ 200 million).

The CEO since August 8, 2007 is the founder of the company - Eugene Kaspersky.

The total headcount of the company is over 2500 people. Leading virus analysts at Kaspersky Lab are members of the internationalComputer Anti-Virus Research Organization (CARO).

Performance indicators

The company's revenue in 2010 amounted to $ 538 million (an increase of 38% compared to 2009).

Worldwide sales of Kaspersky Lab in2009 year- $ 391 million (up 42%). At the same time, only 18% of the total volume was accounted for by sales in Russia and the countries of the Caucasus.

According to the company, the structure of sales in2008 year:

  1. Europe region - $ 188 million (up 42%);
  2. EEMEA region (Central Europe, Middle East, Africa, Eastern Europe and Central Asia) - $ 97 million (up 46%);
  3. America - $ 80 million (up 71%)
  4. countries of the Asia-Pacific region - $ 26 million (an increase of 35%).

According to Forbes, the company's market share in the international market has grown from 2.8% in 2008 to 3.2% in 2010. The main competitors are Symantec and McAfee, which accounted for 30% of the market in 2010.

Trending products

Kaspersky Lab develops solutions to protect both home users and corporate networks of any size. The company's product line includes solutions for all popular operating systems (Windows, Linux, Mac, etc.)

The software kernel of Kaspersky Anti-Virus is used in their products by such developers as: Microsoft (USA), Check Point Software Technologies (Israel, USA), Juniper (USA), Nokia ICG (USA), F-Secure (Finland), Aladdin (Israel) , Sybari (US), Deerfield (US), Alt-N (US), Microworld (India), BorderWare (Canada), etc.

Kaspersky Lab products are certified by leading hardware and software vendors:Microsoft, IBM, Intel, Cisco Systems, Red Hat, Citrix Systems, Novell and others

Dr. Web

Dr. Web - familyantivirusdesigned to protect againstpostal and network worms, rootkits, file viruses,Trojans, stealth viruses, polymorphic viruses, incorporeal viruses,macro viruses, viruses that infect documentsMS Office, script viruses, spyware (spyware), password hijackers, keyloggers, paid dialers, adware (adware), potentially dangerous software, hacker utilities, hatch programs, joke programs, malicious scripts and other malicious objects, as well asspam, scaming-, farming-, phishing- messages and technical spam. Developed by the companyDoctor Web.

The Doctor Web company was founded in 2003 by Igor Danilov, and its main specialization is the release of information security software products under the Dr.Web® trademark. Despite the fact that the company is quite young, its flagship product, Dr.Web anti-virus, is almost 20 years old, its first developments date back to 1992.

Doctor Web company successfully develops and implements solutions for providing integrated security computer equipment for home and corporate users. The Doctor Web product line includes software products for a wide range of operating systems, including mobile devices.

The original core of the software product, constant close communication with users, as well as a global virus monitoring service allow Doctor Web to quickly respond to new computer threats and timely update anti-virus databases and solutions.

Since the founding of the company to this day, the head office is located in St. Petersburg. The company employs over 230 people, about 100 of whom are directly involved in the development of software products.

The main products developed and supplied by Doctor Web:

  1. for guard workstations and file serversgoverned byWindows;
  2. for guard corporate networkand national networks with centralized anti-virus protection management;
  3. AV-desk service for ISP;
  4. for guard postaland file servers underUNIX-systems;
  5. for guard internet gatewaysunder UNIX systems;
  6. to protect file servers underNovell NetWare;
  7. to protect serversLotus Domino on the platform Microsoft Windows;
  8. to protect serversMicrosoft Exchange;
  9. for guard PDAgoverned byWindows Mobile;
  10. for guard workstationsMac OS X;
  11. for guard smartphonesgoverned bySymbian OS;
  12. for guard smartphones and Internet tabletsgoverned byAndroid.

Awards

  1. According to the results of a test for the treatment of active infection (October 2008), conducted by the website anti-malware.ru, Dr. Web is the only one of all the participants who scored the maximum possible number of points (15) and received the Platinum Malware Treatment Award.
  2. Self-defense test results antivirus products(January 2009), conducted by the website anti-malware.ru, Dr. Web was the only one of all the participants who scored the maximum possible number of points (38) and received the Platinum Self-Protection Award.
  3. According to the results of a proactive defense test (March 2009) conducted by the anti-malware.ru website, Dr. Web came in second and received the Silver Proactive Protection Award.

Platinum Self-Protection Award (September 2010) from Anti-Malware.ru

Avast

Avast! - antivirus software for operating systemsWindows, Linux, Mac OS, as well as for PDAs on the platformPalm, Android and Windows CE... Developed by AVAST Software, founded in 1991 in the Czech Republic. The main office of the company is located in Prague. For home it is released in the form of several versions: paid (Pro and Internet Security) and free (Free) for non-commercial use. There are also versions for medium and large businesses (Business Protection and Business Protection Plus) and versions for servers (File Server Security and Email Server Security). The product is certified by ICSA Labs.

The name avast is short for anti-virus advanced set. What's in English language there is the word avast ("stop"), it was noticed later.

avast! Free is considered the most popular free antivirus. All in all, avast! used by over 160 million users worldwide.

In the beginning, the firm had only 5-6 employees. In the early stages of its existence, in addition to developing antivirus programs, the firm worked on localization tools and data backup systems.

Launched in 2011 new line antivirus software for large organizations - Business Protection. For the first time in the world, an antivirus with automatic virtualization was released, and also 6 avast version! featuring the new WebRep, AutoSandbox and SafeZoneTM technologies.

Despite the beginning of 2012, the number of registered users of the antivirus has already exceeded 200 million. Consumers can already install a new avast program! 7, which has become even more perfect. It has been enriched with technologies such as FileRep, Community IQ and Remote Assistance, avast! Account. The avast! Online service has also been developed and launched. Backup.

V currently the firm's staff consists of hundreds of specialists. Of the first staff, three still work in the company - these are its founders Edward Kucera and Pavel Baudish, as well as Vladimir Chernik, the first employee. Avast antivirus! is used by over 150 million users worldwide. If at the dawn of the company's existence its products were available only in the Czech language, then at this moment products are localized and translated into nearly 40 languages. The products have received various awards and recognition from users. The company recently celebrated its twentieth anniversary.

Criticism

In general, criticism of the antivirus is positive. For users, the free version is very attractive, which has everything you need for a home user without any restrictions. The main advantage of avast! is its low resource consumption and high speed scan. However, there are also disadvantages. One of the most famous is the inability to disinfect infected files (despite the fact that this function is present) and, in the overwhelming majority of cases, such files are either deleted or moved to quarantine. Other disadvantages include the inability to remove a memory resident virus (resident in RAM).

Tests and awards

  1. 2006 - Trust Award from the Secure Computing Readers for Best Antivirus.
  2. August 2008 - Advanced + rated by an independent test companyAV-Comparatives.
  3. February 2010 - Highest Platinum Performance Award from Anti-Malware Intelligence Center for Fastest Antivirus Monitor.
  4. December 2010 - VB100 award from the British magazine Virus Bulletin.

2010 - avast! hit the top ten most downloaded programs on CNET Downloads and was in second place

Pros and cons of antivirus software.

It is impossible to say for sure which antivirus is the best than it is up to you to use, but let me make a comparison to make it easier for you to make the right choice. Let's start with Kaspersky.

Kaspersky Internet Security

Pros :

  1. According to the ratings, the most powerfulantivirusof all that exist (if I am not mistaken not only in Russia, but also in the world).
  2. Copes with all viruses, malware, Trojans androotkits(of course, if it is updated, you need to have an Internet connection for this)
  3. Minimal impact on computer performance. (indeed, when it works, in the "passive guard" mode, it loads very little RAM)
  4. Well, and a bunch of standard pluses present in all antiviruses, which I will describe below ...

Minuses :

  1. The price of 1600 rubles per year is expensive on the Internet, and more expensive in shops.
  2. Kaspersky is not one of the fastest antiviruses.
  3. Well, and the third, perhaps the last of the minuses, is that it takes a lot during a full scan of the computer.random access memoryand it is better to turn off all programs at this time ...

Avast!

Pros :

  1. There is a free version (which I use for example on a netbook, and which I am very happy with).
  2. It is one of the fastest file scanning antivirus.
  3. Updates are downloaded quickly and invisibly, after their installation you are notified about it.
  4. Voice prompts. That is, after performing any action, a pleasant female voice notifies you about this.

Minuses :

  1. The free version does not cope with some viruses, or rather, passes them by.
  2. Does not block "bad" banners and advertisements on the site.
  3. The free version must be registered within 30 days. (not big, but minus sign)

Dr.Web

Pros :

  1. There is a free and VERY powerful utility called Curelt!
  2. Quite good scanning speed.

Minuses :

  1. The Curelt! Utility is constantly updated and somewhere every month (or even a week) you have to download a new version ..
  2. The paid version is not cheap ...
  3. And I also heard (but only heard it) that a key can be stolen from your antivirus program during use (!!!).

We bought a computer, we need an antivirus. Think about what you will be using this computer for. If for fun, then it is more expedient to install a free virus (for example, Avast! ). If it will serve not only for entertainment, but also for work, then it is better to install a paid antivirus.

Survey
The survey involved students in grades 8-9
(30 people)

Conclusion: According to our survey, the majority of students trust the protection of their computers to Kaspersky Anti-Virus; the free anti-virus Avast received the least votes.

Conclusion

I chose this topic because I wanted to find out how to protect your computer from the effects of viruses and which antivirus is suitable for each of us - which antivirus is better and which is worse, their pros and cons.

I believe that the topic I have chosen will interest many, since many cannot choose which antivirus program to install on their computer.

The results of my research and the survey I conducted have shown that each antivirus program has its own pros and cons.

I think, the best way protection of your computer is to install on your computer, for example, Kaspersky Anti-Virus and additionally free utility Curelt by Dr. Web. At the end of each week, scan your computer for viruses, first with the Kaspersky Anti-Virus program, then with the Curelt scanner.

Many of my friends have listened to my advice and use it, as well as advise others this idea.

Which antivirus is better, Kaspersky (Kaspersky) or Dr. Web (Doctor Web)!

In this I will not touch on other antiviruses. And I want to talk only about these two.

I'll tell you my case. When I went online for the first time, I didn't have an antivirus. Then I thought about this question. Found two on the net free antivirus Kaspersky and Dr. Web.

Installed of course Kaspersky (you guessed it right away). 78.53% of users would do this. Installation and activation went well. After when I came home from work (a certain number of days have passed), I found that the computer was working somehow wrong. I tried to start the antivirus but it didn't turn on. I had Kaspersky antivirus on my flash drive. I inserted the USB stick and wanted to reinstall the antivirus program again. But the virus broke the antivirus program again. I went online and wanted to download some other antivirus program. But as soon as I connected to the Internet, the virus immediately stole from me windows key... Windows began to appear on the screen with the inscription that you should not licensed windows... It all ended reinstalling windows... Now I have installed Doctor Web.

Let's now figure out which antivirus is better. In fact, there is no 100% protection. But each antivirus has its own pros and cons. To be honest, Kaspersky has the best virus base, but its methods often lead to system freezes. And one more big minus, all viruses are originally designed for Kaspersky. The main task of the virus is to destroy the antivirus program, and then quietly multiply. So when you install Kaspersky Anti-Virus, there is a chance that your antivirus will be broken. Also, the virus getting on the computer will climb into the anti-virus database and delete itself from the database. And the antivirus then does not recognize it as a virus.

As for Doctor Web, it allows viruses to pass on the computer, allows infecting system files, and only then finds these infected files and treats them. But he has a very good program “Dr. Web CureIt”. ”Dr. Web CureIt ”does not require installation and runs from any media. It has its own virus database. By simply running it from any medium, you check the entire computer.

To begin with, you need to turn Windows into a fortress, the OS can be - it is not bad to configure and send half of the malware to smoke!

Regular updates reduce the chances of infecting your computer.

Also, do a full computer scan once a week and more often it all depends on the frequency of using the computer.

It is also necessary to correctly configure the antivirus program, no matter which one you use.

Of course, no antivirus will be able to provide 100% security. there is a “human factor” - the rules of behavior in the network must always be observed.

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