正解:C,D
ExplanationThe term 'rootkit' originally comes from the Unix world, where the word 'root' is used to describe a user with thehighest possible level of access privileges, similar to an 'Administrator' in Windows. The word
'kit' refers to thesoftware that grants root-level access to the machine. Put the two together and you get
'rootkit', a program thatgives someone - with legitimate or malicious intentions - privileged access to a computer.There are four main types of rootkits: Kernel rootkits, User mode rootkits, Bootloader rootkits, Memory rootkits