Shulou(Shulou.com)06/01 Report--

When it comes to antivirus software, we should have used it more or less, and even some classic antivirus software images have been engraved in our minds. For example, rising antivirus teased by people to tease that little lion is a good confirmation of the history of antivirus software. Today, we might as well take a look at the development history of antivirus software.

There is a certain relationship between the development history of antivirus software and the development of computers. Computers were gradually applied and popularized in China in the 1990s, and the application of computer networks promoted the development of gray and black industry. Trojans and malicious attacks on computer terminals follow. Especially in recent years, the offensive of rogue software and blackmail virus has become more and more fierce, and the ransomware led by Wannycry has launched malicious attacks on the terminal one after another, while some users' use of old versions of systems such as Win7 and Window XP also makes vulnerabilities frequent, resulting in the security of the terminal can not be effectively guaranteed. It is precisely because of the emergence of these various security problems that antivirus software has become one of the indispensable software in the terminal.

From charging to free and then to turning off traffic.

Today, the development of antivirus software is mainly divided into two levels from the point of view of users, namely, the charging era and the free era. The so-called charging era is the early development of antivirus software, software needs to be charged, such as the domestic well-known antivirus software Jiang Min, rising, Jinshan poison bully, as well as foreign small red umbrella, Kaspersky and so on all need to pay fees to be able to use normally. And finally change this situation is "killed halfway" 360, it can be said that 360 created a free antivirus software market, and then Tencent's PC manager, Jinshan free version have been active in the PC terminal in the form of free. Even Kaspersky, who vowed not to do free antivirus, eventually had to launch a free version of antivirus software.

I believe many people will have doubts about the profit model of the merchant who uses the software for free. Very simple, that is to rely on traffic, in the Internet age, traffic is money. As a result, there are some bad phenomena in the security software market, bundling and installation, and the whole family bucket package is common, which greatly reduces the user experience. So the free antivirus software led by 360 in China essentially opens the business model of "antivirus free, traffic making money". At a time when everyone is dissatisfied with the antivirus software market, Trench Security has created another precedent in the antivirus market, that is, it has directly shut down the flow cash business and opened a new business model, while its profit model is mainly derived from the sale of enterprise products, while personal products are purely free to use.

"three steps" in the evolution of virus defense strategy

From a technical point of view, antivirus software has undergone three generations of changes according to different virus defense strategies:

First of all, in the first generation of virus defense strategy, sample collection mainly depends on vendor exchange and user feedback. After analysis, the manufacturer obtains the relevant solution and adds the sample to the virus library, and then the security manufacturer updates the virus database accordingly, and finally sends it to the user terminal. This virus defense strategy is mainly seen in the antivirus software of established security manufacturers, but with the passage of time, the disadvantages of this defense strategy also appear, such as less sample acquisition, serious lag in virus file processing and so on.

With the development of technology, cloud computing has become popular, "cloud" has become a major development trend, and the second generation virus defense strategy is derived from this background, the second generation virus defense strategy can be simply called "cloud antivirus". That is, by uploading a large number of unidentified files from the client to the server to view the results, and then unified processing. This is also the virus defense strategy currently used by most mainstream security manufacturers in China, but such a defense strategy is not perfect, because all suspicious files are uploaded to the cloud. As a result, the sample size is too large to be processed and resolved in a timely manner.

What is different from the mainstream domestic security manufacturers is that most foreign security manufacturers are using the third-generation virus defense strategy, the so-called third-generation virus defense strategy is to make the terminal itself have a very high defense and killing ability. and upload the detected threat to the threat intelligence center, and then the manufacturer updates the solution and returns it to the terminal. Compared with the previous two generations of virus defense strategies, the third generation virus defense strategy avoids the disadvantages of previous antivirus mechanisms, can quickly intercept malicious acts, and accurately capture virus samples and respond quickly. At the same time, it will not invade user privacy. At present, in addition to the mainstream foreign security manufacturers, only velvet security is in use by the manufacturers who use the third generation virus defense strategy.

Thus it can be seen that with the continuous innovation of virus detection and killing technology, domestic security manufacturers are constantly introducing new technologies to deal with the increasingly arrogant security threats. Among them, velvet security, as a "rookie" in the antivirus software market, dares to break through the business model of the traditional antivirus market, shuts down the traffic cash business on the basis of free personal version, and strives to create purer antivirus software for users. The introduction of the third generation virus defense strategy makes velvet security like a fish in water in the terminal antivirus market.

There are many security practitioners have made relevant forecasts on the future security market, most people think that the future security market is still not optimistic, malicious Trojans, blackmail software will exist for a long time. In this case, only by carrying out technological innovation in time and keeping pace with the times can we struggle with the underground industry and remain invincible in the future network security competition!

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