r51due

英国essay论文精选范文：“网络应用病毒防护技术”，这篇论文讨论了网络应用病毒防护技术。网络应用涉及到人们生活、工作的方方面面，大量私密信息和重要文件存储在用户计算机中，并在网上流通，尤其是企业、政府重要文件一旦泄露，都将造成巨大的损失，如何提高计算机网络系统的安全性已经成为世界各国关注的话题。其中，加强计算机网络应用病毒防护，是提高计算机网络系统安全性和可靠性的重要途径。

A lot of people, especially computer beginners to understand what is a computer virus are not correct. In fact, computer viruses and we work with WORD, entertainment, audio and video player, Internet with IE, as are programs, is a code that can be executed on your computer. But different from the software we use to form the virus program code execution results is to destroy the normal operation of the computer, ranging from computer speed, damage the operating system, application software, various types of files to make your computer completely paralyzed, causing huge loss to the user. In the process of spreading of computer viruses, trigger, execute, and computer viruses is hidden, parasitic, infectious, trigger, destructive and unpredictable characteristics.

With the development of network applications, the virus almost flows over the Internet, network an important way of viruses invade computers, spread each file over the network, is likely to become the target of virus attacks, also are likely to be carriers of the virus, the common form of Internet communication are as follows:

In the rapid development and growing popularity of computer networks today, paperless office, online entertainment, online shopping, Internet communication, resource sharing computer network applications such as the main content, provide great convenience for people working and studying at the same time, as well as computer viruses range, high speed provided a more favourable basis. Computer viruses developers for network user file download browse of need, will virus package hidden in file among, these file may is software installation program, and may is information document, and may is audio pictures, dang user download contains computer viruses of file, and will this seems "normal" of file open Hou, computer viruses program code on was implementation infection computer file, lurking in computer in the waiting attack or directly launched attack.

http://www.51due.net/writing/essay/sample30750.html

E-mail is Internet important of application content one of, government organ, and enterprises, and personal user, daily has large of e-mail in Internet Shang passed, for information of Exchange and information of transmission, this also became virus in network Shang for spread of important way, virus in infection by computer Shang of file zhihou, once user using infection has virus of computer to other user sent file, virus on followed sent of file through e-mail, do has attack mail receiver computer of prepared, When a user receives a message, and open the file with the message transmission, the virus to slip back into the recipient computer, achieve the purpose of communication. In addition, there are a number of hackers, viruses spread using e-mail to reach the purpose of intentionally spread the virus, whose main message security means are as camouflage, to deceive the recipient opens their mail carriers of the virus in the files infected with a virus.

Internet Shang large of information resources are through page of form for show, for Internet user browse application, each a Internet user, are has had open browse page of experience, virus manufacturing who using page browse of this universal, will virus program code paragraph embedded in page source code among, once user open has with virus code of page, virus code will with page code was implementation, infection user computer Shang of file, reached spread itself of purpose. This mode of transmission, common in some illegal websites, such as pornography, warez sites, etc, and after some hackers attack Web site properly, there are left in the normal Web page source code virus code to enable visitors to infected cases.

The wide application of the Internet giving people work and convenient at the same time, it has brought great convenience to the spread of the virus, a large number of viruses, hidden in the shadows of the online world, waiting to attack the user's computer to the network at any time, to apply good virus protection in computer network, from the following aspects:

In participation network application Shi, user should to itself by using of computer established up effective of virus protection mechanism, as firewall, and antivirus software,, should installation complete and makes its in normal run State, dang firewall and antivirus software in normal work State Shi, if user in network application in the download to has with virus of file, and open has contains virus code of page, and by has from hacker of attack, firewall and antivirus software are will immediately occurred role, on virus file for Avira, on hacker attack for intercept, To stop the execution of virus code in order to protect the security of computer systems. Although antivirus software and firewall, for computer systems provides has effective of protection, but need note, should put an end to piracy antivirus software and firewall of using, and used genuine authorized of antivirus software and firewall, many piracy, and cracked version of antivirus software itself is virus infected, even in cracked of process in the was hacker left has backdoor vulnerability, even download zhihou can temporarily normal using, also very easy to computer systems left security hidden.

Email virus prevention, note that unsolicited mail check. Currently, lots of spam on the Internet abound everywhere, many with Web links or attachments in the message, are carriers of the virus transmission, once these networks are open links or attachments, you may be infected with the virus. These messages often disguising itself as a safe form of deception opens, perhaps seemingly secure mail, perhaps by disguising the contents of the message, perhaps seemingly harmless a picture attachment, but it is hidden behind the already prepared for attack of viruses. Therefore, when you open the message, whether seemingly safe mail, or junk mail, firewall and antivirus software should be open so that computer systems in a State of security.

Operating systems, antivirus software, firewall software, these programs in the design process, regardless of how the design engineer to be careful, there may be flawed, once these flaws are exploited by virus makers, viruses like no-man's barrier free access in the user's computer system. At present, many new viruses are spread through the system vulnerabilities, such as Shockwave viruses, the CIH virus, Panda, signs of these viruses that exploit the system and caused great loss to the user. When using your computer, be sure to pay attention to the operating system, antivirus software, firewalls, and application software upgrades, patches, and make up all kinds of bugs. Many computer users often find that after installing the patch, the computer system problems or even crashes, this part and the defects in the patch design, larger due to procedures used by the users is not genuine, but piracy and even toxic version of the producers to be modified by the virus.

No matter what the virus protection, are likely to leave virus can take advantage of the machine, the computer system infected, computer users need to pay attention to important data backed up and encrypted, so even if the computer is infected with a virus, important data is compromised or damaged, you can also minimize the loss.

想要了解更多英国留学生新闻或者需要英国论文辅导，请关注51Due英国论文代写平台，51Due是一家专业的论文代写机构，专业辅导海外留学生的英文论文写作，主要业务有代写英国Essay、代写paper、代写assignment。在这里，51Due致力于为留学生朋友提供高效优质的留学教育辅导服务，为广大留学生提升写作水平，帮助他们达成学业目标。如果您有论文代写需求，可以咨询我们的客服QQ：800020041。

51Due网站原创范文除特殊说明外一切图文著作权归51Due所有；未经51Due官方授权谢绝任何用途转载或刊发于媒体。如发生侵犯著作权现象，51Due保留一切法律追诉权。-ZR