操作系统型病毒发作时用自己的逻辑代替部分操作系统。
Operating system viruses work by replacing parts of the operating system with their own logic .
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。
For example , some operating system viruses have hidden large amounts of attack logic in falsely marked bad disk sectors .