Computer Viruses.docVIP

Computer Viruses 电脑病毒 Computer viruses are mysterious and grab our attention. On the one hand, viruses show us how vulnerable we are. A property engineered virus can have an amazing effect on the worldwide Internet. On the other hand, they show how sophisticated and interconnected human beings have become. 电脑病毒是神秘的，它牢牢吸引住我们的视线。一方面，电脑病毒向我们展示了我们的安全性是多么的脆弱，一个工程性病毒可以对全世界的互联网产生不可思议的影响。另一方面，它向我们展示了人类如今已变得多么富有经验，团结一致。 Types of Infection 病毒种类 When you listen to the news, you hear about many different forms of electronic infection. The most common are: 当你听到这些新闻，你将会听到许多不同种类的电子感染，最常见的是： Viruses---A virus is a small piece of software that piggybacks on real programs. For example, a virus might attach itself to a program such as a spreadsheet program. Each time the spreadsheet program runs, the virus runs, too, and it has the chance to reproduce (by attaching to other programs) or wreak havoc. 病毒感染—病毒是携带真实程序的软件的一小部分。例如，一个病毒可能依附在电子制表程序一类的程序上。每当电子制表程序运行时，病毒也随之运行，而且它有可能再生出更多病毒（通过依附在其他程序中）或造成严重破坏。 Email viruses---An email virus moves around in email messages, and usually replicates itself by automatically mailing itself to dozens of people in the victim’s email address book. 邮件病毒—邮件病毒在电子邮件中进行传播，并且在受害者的电子邮件地址簿中通过自动发送邮件来复制产生更多病毒。 Worms---A worm is a small piece of software that uses computer networks and security holes to replicate itself. A copy of the worm scans the network for another machine that has a specific security hole. It copies itself to the new machine using the security hole, and then starts replicating from there, as well. 蠕虫病毒—蠕虫是利用计算机网络和安全漏洞来复制自身的一个小软件。蠕虫代码的副本可以扫描网络，以查找具有特定安全漏洞的另一台计算机。它可以利用该漏洞将自身复制到新的计算机上，然后又从新的位置开始进行复制。 Trojan horses---A Trojan horse is simply a computer program. The program claims to do one thing (it may claim to be a game) but instead does damage when you run it (it may erase your hard disk). Trojan horses have no way to replicate automatically. 特洛伊木马病毒--特洛伊木马只是一个计算机程序。它声称可以执行某项任务（也可能声称自己是一种游戏），但当你运行它时，它却会进行一些破坏活动（它可能会抹除您硬盘上的数据）。特洛伊木马不会自动进行自我复制。 Wh