Which of the following threats changes system functionality at the operating system level for a malicious purpose by gaining administrative access after being installed by a user?
A. Botnet
B. Trojan
C. Worm
D. Rootkit
CompTIA exam questions
Which of the following threats changes system functionality at the operating system level for a malicious purpose by gaining administrative access after being installed by a user?
A. Botnet
B. Trojan
C. Worm
D. Rootkit