I have a friend that left his computer on during a storm and the power went out, and when he tried to reboot, his computer went haywire, nothin but errors than it eventually wouldnt turn on again. It seems kind of odd for you to be gone and not on the computer than come back after it was shut down by a storm and then have all these errors for it to be a trojan. I think during the surge some bad things happened in that quick instant of shutdown. Electricity works in very weird ways.