I Just received a whole bundle of spam including this one:
Dear MS customer
this is the latest version of security update, the "October 2003, Cumulative Patch" update which fixes all known security vulnerabilities affecting MS Internet Explorer, MS Outlook and MS Outlook Express as well as three newly discovered vulnerabilities.
Install now to help protect your computer from these vulnerabilities, the most serious of which could allow an attacker to run code on your system. .... attached *.exe file, no doubt virus laden.