Computer Virus Warning

"COMPUTER VIRUS WARNING - 'UPS Delivery Failure'.

You will receive an email from UPS Packet Service along with a packet number. NOTE: The word packet is mis-spelled on this line. It will say that they were un-able to deliver a package sent to you on such and such a date. It then asks you to print out the invoice copy attached. DON'T TRY TO PRINT THIS. IT LAUNCHES THE VIRUS!"