计算机病毒 COMPUTER VIRUSES(含外文出处)

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计算机病毒 COMPUTER VIRUSES(含外文出处)(中文4400字,英文2400字)
摘要：计算机病毒的基本原理、防治计算机病毒的基本原理与方法是关心信息安全的人士所必须了解和掌握的内容，是信息安全研究中的重要组成部分。本书在这几个方面做了全面、系统的介绍。
关键字：计算机病毒宏病毒特洛伊木马
计算机病毒

COMPUTER VIRUSES
What are computer viruses?
According to Fred Cohen’s well-known definition, a computer virus is a computer program that can infect other computer programs by modifying them in such a way as to include a (possibly evolved) copy of itself. Note that a program does not have to perform outright damage (such as deleting or corrupting files) in order to be called a “virus”. However, Cohen uses the terms within his definition (e.g. “program” and “modify”) a bit differently from the way most anti-virus researchers use them, and classifies as viruses some things which most of us would not consider viruses.