Samsung Galacy s3 werid symbol?

[androidmack_13]

Okay im new here and i got a s3 for my christmas present but recently a werid android symbol is poping up every so often, its like a one eyed android head, what is it and what doea it mean ?

 

[Paul627g]

A bit more information as to where/when this is popping up would be great. Screenshot would be worth a million