Yea got a double extension .scr and trashed it. Norton (updated 5 days ago) did not trap it. What is an scr extension? - I guessed screen but decided I could ignore it but it definitely came to an e-mail address I don't use much. However I got a global apology from someone who emails a long list so thet may be the vector but why did it not come to the expected address? Who knows.
Thank heavens for the wit to stick to my policy. Trash attachments unless they are of a known provenence and they don't execute and I know what the file does. So only pictures to me - no HTML, no Office files, no.