all 4 of those hits are false positives
ESET-NOD32 a variant of Win32/BitCoinMiner.BJ potentially unsafe 20170601
Rising Malware.Generic.5!tfe (thunder:5:ny6HnbI7sfK) 20170601
Sophos Bitcoin Miner (PUA) 20170601
Symantec ML.Attribute.HighConfidence 20170601
Indeed they are.