I don't know much about Trojans, but...
Apparently there's a nasty computer virus going around, and everyone in the university is wibbling about it, as far as I can tell (I've received both the email with the nasty virus, and several emails from people saying 'OMGdon'topenit!!!'). The email in question has a subject along the lines of 'UPS Tracking Number' and claims to be about an undelivered parcel or somesuch. So, you know, don't open it (or its attachment), or your computer will die. Or something.