If you're Mac is slower than usual, experiencing battery drain, and constantly running its fans, you might be affected by a new piece of malware.
Mac users around the web are reporting that new malware affecting macOS is circulating under the name mshelper. The malware apparently causes a Mac's processor to run near 100%, which could prevent other applications from performing well or, in some cases, at all. Continually running the processor at its maximum capacity also has the effect of draining a Macbook's battery more rapidly which will have an adverse effect on its overall health.
To see if mshelper is running on your Mac, you're going to need to open up Activity Monitor.
Click CPU if it isn't already clicked.
Scroll through the list until you find mshelper. When sorting by processor usage percentage, it should be near the top.
The process automatically starts up again if you kill it, so there's really no need until you remove mshelper from your system.
These steps involve going into your Mac's Library folder.
Click on your Mac's internal storage.
Open on the LaunchDaemons folder.
Click Application Support.