One of your users calls to state that their computer is acting unusual. You go to investigate and
find there is an unauthorized program installed on this computer. You examine the network and
find that this program is now on other machines in the network. It seems to be unable to move
through the network on its own, and is getting sent as an email attachment. What type of program
is in the network?

A.
The program is a Worm.

B.
The program is a Virus.

C.
The program is a Port scanner.

D.
The program is a Trojan Horse.

E.
The program is a Macro.