Careful With That Patch, Eugene

A new mass-mailing virus masquerading as
a security patch from Microsoft is on the loose and
anti-virus experts say it has the ability to steal account information
and e-mail server details from infected systems.

The new virus, which originated in Europe, has started
infected e-mail inboxes in the U.S., arriving with a .EXE attachment
with the subject line "Microsoft Internet Update Pack", "Microsoft
Critical Patch" or "Newest Security Update".

from
Internetnews.com