Thanks Tacit/ Joe.
What mean windows computer infected, it was my Mac that hot hit no?

And this Trojan could have come from an intern? Maybe an email attachment I accidentally opened? Maybe a software someone recommended? I have no idea... Wouldn't AV have prevented this?

Currently I get zillions of spam with attachments and Sophos is marking some with and error, (thats how Dave at SD explained it), and making some of my super duper clones abort. This is why I posted. What do you guys recommend?