WARNING: VIRUS-CONTAINING SPAM

Just got this from my old university...

'We are aware that there is a spam e-mail circulating at present claiming to originate from UPS. It states that a parcel has an incorrect postal address. The e-mail has an attachment which should not be opened as it contains a virus. If you receive this e-mail, please delete it.'

I've had several of these already over the last few days - now wondering if I opened the attachment...I don't think I did. I guess I'll find out soon enough if I did!