Most Trojans are either used to take over their victim’s machines and to then use them for spam email distribution, DDoS attacks, and cryptocurrency mining, or they are utilized as backdoor tools for Ransomware infections. However, some Trojans are also potent espionage and data-theft tools. There are also other things that Trojans can do so it's difficult to determine the exact goal of a newly released virus such as MultiSpeedUp. The one certain thing here, however, is that you should remove MultiSpeedUp ASAP, or else the consequences of its presence in your computer may be irreversible.