So combine those 3 and you've got around 23+Ghz.. (of what we can actually see..)
In a way, i'm like: Wtf? That is almost 48-50K USD per month... Have to admit, best and most intelligent move i've seen in years in the mining scene (if it's him though..). So got to give it to him, congrats for that!
On the other hand, it could as well be a botnet from someone..