Hi, and yes ethminer is part of the Nicehash coin miner. However the file contains mining/bot behvaior. There will not be updates to make this file undetected. Your best solutions would be to add the file to your exceptions. With that being said I'm a little confused? Are you saying scvhost is a windows file?. The file found in your systems folder is sCvhost not sVchost. The sCvhost is not a windows file. That file seems to be a common type of malware/spyware and should be removed immediatly. After removing that file I would also recommend running a scan with Malwarebytes Anti-Malware to make sure there are no variants of the threat left on your system. I'd also recommend running a scan with Adwcleaner to help ensure there are no other remaining PUPs.
If you don't mind please post your NoBot scan log and Malwarebytes scan log after you're finished.