Trojan clicker

Definition
A Trojan clicker is

"[a] type of trojan that can use your PC to "click" on websites or applications. They are usually used to make money for a malicious hacker by clicking on online advertisements and making it look like the website gets more traffic than it does. They can also be used to skew online polls, install programs on your PC, or make potentially unwanted software appear more popular than it is."