It seems this new Malware attacks the mining software to replace the address used to pool crypto coins mined, with the attackers address. If you don't check in on your earnings, it would never be noticed. So keep an eye on your wallet! It's not very set-it-and-forget-it anymore... So far it hasn't been very successful or profitable, but future revisions could be a bit more problematic. Keep your eyes peeled!
MassStash
From the Cracking Crypto Team