Which rootkit is characterized by its function of adding code and/or replacing some of the operating-system kernel code to obscure a backdoor on a system?
The description mentions modifying the kernel, so I'm going to go with option C, the kernel-level rootkit. That seems to match the characteristics given in the question.
I'm a bit confused on the differences between the types of rootkits. I'll need to review my notes to make sure I understand the distinctions before answering this.
Okay, the key here is that the rootkit is characterized by adding or replacing kernel code to obscure a backdoor. That sounds like a kernel-level rootkit to me.
Hmm, I'm not sure about this one. I'll have to think it through carefully. Maybe I should eliminate the options that don't seem to fit the description first.
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