Complex viruses are referring to the viruses with the infecting characteristics of both boot viruses' and file infecting viruses'.

复合型病毒是指具有引导型病毒和文件型病毒寄生方式的计算机病毒。

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Most viruses attach themselves to executable files, but some can target a master boot record, autorun scripts, ms Office macros, or even in some cases, arbitrary files.

大多数病毒都附身于可执行文件，但有些也可以锁定主引导记录、自动运行脚本、微软Office宏文件、甚至某些情况下依附于任意文件。

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This paper discusses the cross infection of the viruses residing in boot sector of computer, analyses its mechanism, harm and the method to kill it.

本文分析了引导区寄生型病毒在磁盘上交叉感染的机制、危害和诊治方法。

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