Trojan is a malware that may pretend to be a legitimate program but in fact it dose harmful activities on your computer. Unlike computer viruses, Trojans do not inject themselves to files but they might get into a computer through freeware downloads or online games. Once a it has got into a computer, it will go against the host machine. It may steal a user`s private information stored on machine.
What is Trojan
A Trojan malware can be dangerous as it may open backdoors on a computer to allow hackers access the infected computer remotely. This is why they are mostly called RAT (Remote Access Trojans). These days, these malwares are also used by hackers to make money, they use them to distribute browser hijackers that gain traffic for malicious websites. Browser hijackers also display fake product advertisements and ask users to buy them.
To detect or remove Trojans from a computer, Install an anti-malware program.