I ran a netstat on my machine and found a certain connection with a foreign address...
pool-108-51-140-90:14905
Does anyone know what is this ? Is it a mining pool where I am connected ?
Just googling that IP looks like Verizon in the Washington area. Do you happen to be in this area? If so i would be less worried.
If you are not I would start running a few malware and virus scans.