I was wondering if anyone would have said something. My theory is it's a Monero mining malware. A few days ago, another miner pointed out this account on 2Miners.com running Solo. At the time it was pointed out to me, just on 2miners, this one account had over 500Gh/s: https://solo-xmr.2miners.com/account/8Aa4txZdPkvHu1zRX8CvcP9wviQSC8ukNFrS4FHYanocY7HzzsTSpNuLbCeKwR8GxAVKqm6WrQYp4Nn1GF6T9mXwCTDGn2k - The miner shows 100Gh/s at the moment, which by itself is pretty gnarly.