【文章內(nèi)容簡介】 so many crossinfection, the virus spread in the work, in addition to speed, its spread is quite amazing. 3. Dissemination in the form of plex and diverse Network forms of transmission of the virus before we have already done a presentation here would not elaborate on the But with puter viruses innovation, I believe there will be even more we can not predict the form of dissemination. 4. Difficult to eradicate Single of puter viruses can sometimes through antivirus and virus deleted documents to resolve. If that does not work, such as lowlevel disk formatting can 4 measure the plete removal of the virus. Network, as long as they have a workstation could not cleanse, the whole work can be reinfected with the virus, have just pleted a work of the antivirus workstations, it may be another virus Inter workstations are infected. Therefore, to deal with the single form of antivirus, the LAN will be more pronounced, felt helpless. 5. Devastating SMEs office work is mainly for enterprise services. Virus attacks, the work will not only affect their normal work, and even more frightening is that it would collapse the work, damage to the puter work, so that work was ruined. 6. Sexual sparks It can be described as the hidden nature of the virus on the work extension, the work conditions for the virus to stimulate the diversification, it is the internal clock, the date and user name, it can also be a work of munication and so on. An HIV virus in accordance with the procedures designers, at the request of a workstation outbreak and spread to the entire work. 7. Potential In the work, once infected with the virus, even if the virus has been eliminated, the potential danger is enormous. According to the pany39。s work statistics, the virus has been removed, 85% of the 30 days will be reinfection. Enterprises still using single version of antivirus software virus defense at the same time, virus has in various forms through the LAN to spread quickly, and they attacked the client, server, and gateway, almost all pervasive. it is not exaggerating to say, we can easily make the entire LAN gridlock, should we really have to sit until death? Although the prospect of using virus technology to simplify the task of delivering patches and software updates is tempting, the dangers can outweigh the benefits when the process is too automated. For example, the improved Windows Update feature in Windows XP now allows patches and updates to be downloaded automatically, although installation is still at the user’s discretion. Trojan horses, worms, and other malicious code forms have proven to be incredibly successful at paralyzing systems and Inter providers. It is therefore only logical to conceive of ways to use them for productive purposes, much as the Bible exhorts its readers to beat their swords into plowshares and their spears into pruning hooks. Granted, it would be wonderful if IT administrators could distribute patches and software updates to desktops and servers as quickly as an virus can spread from one machine to the next. But is such a magic wand really a good idea? Well, maybe not exactly. After all, unlike the human immune system, which produces defenses, or antibodies, automatically, the puter must wait for a human to analyze samples of a puter virus, prepare antidotes and vaccines for that specific situation, and only then apply the cure. This observation alone would seem to discredit the idea of a “digital immune system” that the security munity has tossed around during the past few years, but 5 there’s an even more important point to consider. Similar to the way that autoimmune diseases turn the body’ s own defenses against itself, so could one turn a viruslike software delivery system against its own puters. Although it would be difficult to monkey with the digital certificates that would conceivably be used to identify trusted patches, it’s not impossible to subvert the certificate issuing system. Viruses, worms, and Trojan horses are programs created by hackers that use the Inter to infect vulne