operating system viruses work by replacing parts of the operating system with their own logic 操作系统型病毒发作时用自己的逻辑代替部分操作系统。
fof example , some operating system viruses have hidden large amounts of attack logic in falsely marked bad disk sectors 例如,一些操作系统型病毒把自身的逻辑隐藏在那些标识“坏”的磁盘扇区中。
it is very difficult to write operating system viruses and these viruses have the ability once booted up , to take total control of your system 这些病毒程序的编写非常困难,它们一旦得手就有能力控制整个系统。