Hi Peter
If you want to be a bit "adventurous" and find out what virus/malware must be sending that email, you can save that email attachment to your desktop, then upload it to
http://www.virustotal.com . This is an online virus scanner, which actually checks the uploaded sample against alot of the popular virus scanners. Make sure to delete the attachment and email after.
However, being the ever so cautious person, I would not recommend saving the attachment. just delete the email
