Following is the text of an email received overnight.
The sender is unknown to me. Could this contain a virus in the zip attachment or a porn site entrance??
Most likely the zip atttachment will appear to contain a file with the extension .txt, but this will actually turn out to be a file called something.txt[loads and loads of spaces].exe or similar - Winzip and other file compression utilities, when they open the zip file, may not show the fu width of the file name and you might be tempted to think the real extension is .txt
Your AV wouldn’t normally catch that – it’s a link to a page that contains the virus, not a virus itself. A good spam filter or e-mail server AV might have caught it, but there’s no virus until you click on the link.