I'm a customer with UPS and they just sent this official notice of a bogus email circulating.

UPS Brown Bulletin
Attention Virus Warning

We have become aware there is a fraudulent e-mail being sent that says it is coming from UPS and leads the reader to believe that a UPS shipment could not be delivered. The reader is advised to open an attachment reportedly containing a waybill for the shipment to be picked up.

This e-mail attachment contains a virus. We recommend that you do not open the attachment, but delete the e-mail immediately.

UPS may send official notification messages on occasion, but they rarely include attachments. If you receive a notification message that includes an attachment and are in doubt about its authenticity, please contact customerservice@ups.com.

Please note that UPS takes its customer relationships very seriously, but cannot take responsibility for the unauthorized actions of third parties.