Anna discovers malware on her computer. After being downloaded, the malware self-activated and replicated itself and infected the entire system. What type of malware is this? A.
worm
B.
virus
C.
Trojan horse
D.
spyware

A.

Explanation:

The malware that replicates itself and can infect the entire system is a worm.

A worm is a type of malware that gets self-activated and replicated. This worm spreads rapidly over the computer system and can corrupt all the files and the entire system.

A worm is a standalone application and does not require action from humans.

Therefore, option A is correct.