You certainly don't want to be the chosen ones whose computers are attacked by malware for the first time. Of course, signature databases will be updated based on your experience, and you will help thousands of users avoid the same fate, but why you?

In order not to expose your laptop or desktop PC to the risk of being infected with a newly written virus, you need to download Dr.Web Katana. Traditional signature-based and even heuristic mechanisms are not able to fully protect a computer from cutting-edge malware. But this program works differently - firstly, it analyzes all active processes and scenarios. Secondly, interaction with "cloud" technologies is implemented here at the highest level.

Opportunities:

• proactive defense;
• tracking and blocking Trojans, rootkits, exploits;
• suppression of malicious scripts "on the fly";
• work in conjunction with other anti-virus packages;
• a high level of security both with and without the Internet connected.

Principle of operation:

The anti-virus uses unique algorithms developed by Doctor Web. Its work is based on the constant analysis of potentially dangerous activities, which include the launch of new processes, files and applications. All this is supported by Dr.Web ShellGuard technology, which follows not only the prescribed rules, but also the data received from the Dr.Web Cloud cloud service.

Pros:

• prevention of attacks by unknown viruses;
• guarding security holes after updates;
• Dr Web Katana interface - in Russian.

Minuses:

• You can install for free only the demo version of Dr.Web Katana, which is limited to 30 days.

The program is one of the best preventive protection tools. With this antivirus, you can safely download any files to your computer without worrying that any of them contains a threat to your PC - Dr.Web Katana will instantly react to any danger.

Analogues:

• - security package for home PC and mobile devices;
• 360 Total Security is an anti-virus complex of five anti-virus engines that guarantee powerful real-time protection.

It is based on proactive technologies without the use of virus databases: the decision on the need to neutralize a particular malicious program is made only on the basis of an intelligent analysis of the behavior of applications running on the computer.

Dr.Web Katana (Kills Active Threats And New Attacks) is a non-signature antivirus for preventive protection against the latest active threats, targeted attacks and penetration attempts, including through zero-day vulnerabilities that are not yet known to your antivirus.

Among the dangers that often cannot be prevented by signature-based antivirus are modern ransomware Trojans and operating system blockers. Only for Trojans of the Trojan.Encoder family, the number of calls to Doctor Web's technical support has recently reached 60% of the total number of requests - this is a real epidemic. And the vast majority of those who applied are users of other antiviruses. It is these threats that the new product Dr.Web Katana cuts off in the first place.

Another strength of the new Dr.Web Katana product is protection against malware penetration through vulnerabilities in the software installed on the computer. Such programs – exploits – are currently in high demand on the cybercriminal “services” market. Despite the fact that software developers try to quickly release “patches” for known vulnerabilities, more often than not, vulnerabilities first become known to criminals. Today we can confidently say that invulnerable systems do not exist! Thanks to Dr.Web Katana, vulnerabilities (including "zero day") cease to pose a threat to users, which, of course, does not eliminate the need to update all installed software in a timely manner.

Thanks to the algorithms developed by Doctor Web, the new product prevents malware from infiltrating the processes of other applications, detects and stops malicious, suspicious or untrustworthy scripts and processes. Analyzing potentially dangerous actions, the protection system, thanks to Dr.Web ShellGuard technology, relies not only on the prescribed rules stored on the computer, but also on the knowledge of the Dr.Web Cloud cloud service.

Dr.Web Katana does not use virus databases (and, accordingly, they do not need to be constantly updated). The product is the lightest non-signature antivirus that has almost no load on the system performance. In addition, it does not require any prior configuration.

Non-signature antivirus for proactive protection against the latest active threats, targeted attacks and intrusion attempts, including through zero-day vulnerabilities that are not yet known to your antivirus.

Dr.Web KATANA is a whole new generation of Dr.Web anti-virus technologies designed to provide proactive protection. It will protect against those threats that are not yet known to your antivirus.

Advantages

All-seeing - neutralizes the latest threats not yet known to your antivirus. Every day, the anti-virus laboratory receives several hundred thousand program samples for analysis. Tens of thousands of entries are added to the virus database every day. These are the threats that virus analysts are already aware of and for which countermeasures have been developed. However, the greatest benefit to criminals comes from programs that have not yet been analyzed by information security specialists.

Dr.Web KATANA protects against the actions of the latest, most dangerous malware today, designed to be undetectable by traditional signature and heuristic mechanisms. These programs have not yet been submitted for analysis to the anti-virus laboratory, which means that they are not known to the virus database at the time of penetration into the system. These include the latest ransomware, ransomware, injectors, blocker Trojans, and threats that exploit zero-day vulnerabilities.

Dr.Web KATANA provides security almost from the moment the operating system is launched - it starts protecting even before the download of the traditional signature antivirus is completed!

inconspicuous
The constant improvement of malicious programs and the growth of their number entail the expansion of the functionality of protection tools that work continuously in anticipation of an attack. This often slows down the computer, causing dissatisfaction with users who sometimes prefer to disable anti-virus protection for the sake of "speed". Significantly enhancing computer protection, Dr.Web KATANA practically does not consume system resources.

Dr.Web KATANA stops the actions of active malware without slowing down your computer.

Lightning fast - analyzes the behavior of threats on the fly and immediately stops malicious scripts and processes that your antivirus did not recognize.
Dr.Web KATANA protection is based on non-signature methods for detecting and neutralizing malware and cloud-based protection technologies. The product analyzes and controls all system processes, detects malicious ones by their characteristic behavior and blocks them.

Traditional behavioral analyzers are based on the rules of behavior for legitimate programs, which are hardcoded in the knowledge base. Such rules are known to attackers as well. Dr.Web KATANA operates differently - the product analyzes the behavior of each running program "on the fly" and immediately takes the necessary measures to neutralize the threat.

Conventional behavioral analyzers monitor malware's access to various system resources. But what to do if the malicious program, having infiltrated the browser, does not access the system, but simply modifies, for example, the window of interaction with your bank?

Dr.Web KATANA monitors the activity of malicious programs inside processes - thus, attempts to steal confidential information or transfer money from your account will be stopped in a timely manner!

• Independent- does not require any configuration and begins to operate effectively immediately after installation.
• Flexible - a set of pre-installed protection scenarios and fine-tuning options allow you to comprehensively control the protection process, adapting it to the needs of the user.
• Offline - protects even without PC access to the Internet.
• Versatile - Protects the widest range of Windows operating systems, from Windows XP to the latest Windows 10.
• Non-conflicting - can work in conjunction with antiviruses from other developers to enhance the protection of your computer.

• Protects critical parts of the system from modifications by malware.
• Detects and terminates malicious, suspicious or untrusted scripts and processes.
• Recognizes unwanted file changes by monitoring the operation of all processes in the system, looking for actions typical of the behavior of malicious programs (for example, ransomware Trojans), preventing dangerous objects from infiltrating the processes of other programs.
• Detects and neutralizes the latest threats not yet known to the Dr.Web virus database: ransomware Trojans (encryptors), injectors, remotely controlled malicious objects (distributed for organizing botnets and espionage), as well as virus packers.
• Protects against exploits - malicious objects that try to use vulnerabilities to penetrate the system, including those not yet known to anyone except virus writers (the so-called "zero-day" vulnerabilities). If an attempt to penetrate through a vulnerability is detected, Dr.Web KATANA forcibly terminates the process of the attacked program.

Invulnerable systems do not exist!

Software developers are trying to quickly release patches for known vulnerabilities. For example, Microsoft releases security updates quite often. But some of them are installed by users very late (or not installed at all), which encourages attackers both to search for new vulnerabilities and to use already known, but not closed on the side of potential victims.

• Controls the work of not only the most popular browsers, but also any plugins for them; protects against browser blockers.

Today, one of the most popular ways for malware to penetrate the system has become the installation of additional applications under the guise of useful software.

• blocks the ability of malicious programs to change the boot areas of the disk in order to make it impossible to start (for example, Trojans) on the computer;
• prevents disabling Windows Safe Mode by blocking registry changes;
• does not allow malicious programs to add to the logic of the operating system the execution of new tasks needed by attackers; blocks a number of parameters in the Windows registry, which prevents viruses, for example, from changing the normal display of the Desktop or hiding the presence of a Trojan in the system using a rootkit;
• does not allow malware to change the rules for launching programs;
• Stops downloading new or unknown drivers without the knowledge of the user;
• blocks the autorun of malicious programs, as well as certain applications, such as anti-antiviruses, preventing them from registering in the registry for subsequent launch;
• blocks registry branches that are responsible for virtual device drivers, which makes it impossible to install a new virtual device;
• blocks communication between spyware components and the server that manages them;
• prevents malware from disrupting the normal operation of system services - for example, interfering with the process of regular file backups.

Work algorithm

• When Dr.Web KATANA detects an attempt to activate a malicious code, it terminates this process forcibly. If the attack was carried out through a vulnerability in another software, Dr.Web KATANA terminates the process of such a program. No anti-virus actions are performed on files of the attacked application, including moving to quarantine.
• As an information note, the user sees a notification about the suppression of an attempted malicious action, which does not require a response.
• An entry about the suppression of the attack is created in the Dr.Web event log.
• The system's cloud knowledge base is immediately notified of the incident. If necessary, Doctor Web specialists will respond to it, for example, by improving the protection algorithm.

• The default setting is Optimal Protection Level. In this mode, only those registry branches that are used by malicious programs and that can be blocked (prohibited from changing them) are protected - without a significant load on computer resources.
• If there is an increased risk of infection, the protection level can be increased to Medium.
• For complete control of access to critical Windows objects, the protection level can be raised to Paranoid.

Raising the level of protection mode provides additional system security in case of malicious software actions that are not yet known to the Dr.Web virus database. But at the same time, the risk of conflicts between the prohibitions of preventive protection and the needs of running applications also increases.

• Through profiles on the "Protection" tab, you can create flexible rules for trusted applications and thus prevent software conflicts during the operation of Dr.Web KATANA. Each profile can contain specific restrictions on the access of programs to resources.
• Different programs require access to a variety of resources in order to work. In Dr.Web KATANA, the user can configure Dr.Web protection control settings for a specific application so that it can only access certain resources, which can save the system if this application is infected.

To evaluate the latest innovative solution in antivirus software from a domestic manufacturer, you need to download Dr Web Katana.

Thanks to preventive protection against malware, the user will be able to protect his equipment both from common types of virus programs and infected files, as well as from the latest threats, information about which is not in the antivirus database.

The main difference of this software from older versions is the ability to recognize a threat that was not previously exposed to a personal computer and which is not listed in the anti-virus database. This approach to the application allows Dr. Web Katana to be proactive and block any suspicious file that carries a potential danger to the PC. After the analysis, the program independently, without connecting to the Internet, chooses a method to eliminate the danger or places the infected file in quarantine.

Benefits of Doctor Web Katana

Thanks to regular program updates and the colossal work of the developers of this software with thousands of samples of dangerous programs and infected files, manufacturers create the most effective antivirus that can work both autonomously and check the received data with the virus database. Therefore, Katana is a reliable solution for computer users, which has one of the best anti-malware mechanisms.

The advantages of this application include the following features:

• Detects any type of threat thanks to access to one of the largest virus databases. It also has the ability to work effectively in offline mode, which increases the security of the computer when connecting portable devices or installing unlicensed software on the computer.
• Despite the rather wide functionality of the antivirus, this program is highly economical in terms of using PC resources. At the same time, good optimization allows you to speed up the interaction of the application with the operating system that works with multi-core processors.
• The high speed of the antivirus is ensured both by the correct distribution of computer resources, and thanks to the perfect algorithm of the program, which allows you to determine the degree of threat in real time in a matter of seconds and take appropriate measures for a malicious file or application.

To appreciate all the advantages of this antivirus, just download Doctor Web Katana from our website and see for yourself how effective it is.

Dr. Web Katana- non-signature antivirus for proactive protection against the latest active threats, targeted attacks and penetration attempts, including through zero-day vulnerabilities that are not yet known to your antivirus.

Advantages

• Neutralizes the latest threats, not yet known to your antivirus, designed to be undetectable by traditional signature and heuristic mechanisms.
• Provides security almost from the moment the operating system is launched - Dr.Web Katana starts protecting even before the download of the traditional signature antivirus is completed!
• Unlike the traditional antivirus Dr.Web Katana consumes almost no resources.
• Controls all system processes, detects malicious ones by their characteristic behavior and blocks them. It analyzes the behavior of each running program on the fly, checking the constantly updated Dr.Web reputation cloud, and based on current knowledge of how malware behaves, draws a conclusion about its danger, and then takes the necessary measures to neutralize the threat.
• It does not require any configuration and starts to work effectively immediately after installation.
• Protects even without PC access to the Internet.

Functionality

• Protects critical parts of the system from modifications by malware.
• Detects and terminates malicious, suspicious or untrusted scripts and processes.
• Recognizes unwanted file changes by monitoring the operation of all processes in the system in search of actions typical of the behavior of malware (for example, the actions of ransomware Trojans), preventing malicious objects from infiltrating the processes of other programs.
• Detects and neutralizes the latest threats: ransomware Trojans (encryptors), injectors, remotely controlled malicious objects (distributed for organizing botnets and espionage), as well as virus packers.
• Protects against exploits - malicious objects that try to use vulnerabilities to penetrate the system, including those not yet known to anyone except virus writers (the so-called "zero-day" vulnerabilities).
• Controls the work of not only the most popular browsers, but also any plugins for them; protects against browser blockers.
• Blocks the ability of malware to change the boot areas of the disk in order to prevent it from running (for example, Trojans) on the computer.
• Prevents disabling Windows Safe Mode by blocking registry changes.
• Prevents malicious programs from adding to the operating system logic the execution of new tasks that attackers need. Blocks a number of settings in the Windows registry, which prevents, for example, viruses from changing the normal display of the Desktop or hiding the presence of a Trojan in the system using a rootkit.
• Prevents malware from modifying program launch rules.
• Stops downloading new or unknown drivers without the user's knowledge.
• Blocks the autorun of malware and certain applications, such as anti-viruses, preventing them from registering in the registry for later launch.
• Blocks the registry branches that are responsible for virtual device drivers, which makes it impossible to install a new virtual device.
• Blocks communications between spyware components and the server that manages them.
• Prevents malware from disrupting the normal operation of system services, such as interfering with regular file backups.