I keep my 2009 Unibody MacBook Pro on an M-Stand. I closed the lid last night and it was completely off, no fan, heat, anything. This morning I woke up and the fan was running at full speed, and the computer was very hot. Before I could open the lid, it shut off. I have no idea how long it was running but sometime during the night it began running. I have a SSD but there was no TM backup done like the MBA's do while asleep. What could this be? Could there be some kind of malware using my processor remotely? Thanks!