Sara, a user, downloads a keygen to install pirated software. After running the keygen, system performance is
extremely slow and numerous antivirus alerts are displayed. Which of the following BEST describes this type of
malware?

A.
Logic bomb

B.
Worm

C.
Trojan

D.
Adware

Explanation:
In computers, a Trojan is a program in which malicious or harmful code is contained inside apparently harmless
programming or data in such a way that it can get control and do its chosen form of damage, such as ruining
the file allocation table on your hard disk. In one celebrated case, a Trojan was a program that was supposed to
find and destroy computer viruses. A Trojan horse may be widely redistributed as part of a computer virus.