detect executables embedded inside MS Office documents?

[Furnish, Trever G]

Anyone know a way to get MailScanner/SA to detect executables embedded
within Microsoft Office documents?  We've had a word file come in with a
.scr file embedded inside, wasn't detected by antivirus, but was
definitely malware.  Would love to be able to block files embedded into
office docs based on file extension / file type.  Didn't even know it
was possible to do that (embed an executable inside a word file) until
today.
 
--
Trever Furnish, tgfurnish at herffjones.com
Herff Jones, Inc. Unix / Network Administrator
Phone: 317.612.3519
Any sufficiently advanced technology is indistinguishable from Unix.