Re: Bad viruses?

.B64 files are base 64 MIME files. Virus writers use this combined with a
malformed header to exploit Microsoft Security Bulletin (MS01-020) to launch
an embedded encoded executable from within IE and Outlook, without your
knowledge, and automatically upon receipt. Always scan for MIME data, always
scan MIME headers for exploits and always scan .B64 files. .B64 files are
not executables, but contain data that becomes an executable by any code
that renders HTML (IE and Outlook).

Mike

-----Original Message-----
From: pctech-bounces@xxxxxxxxxxxx [mailto:pctech-bounces@xxxxxxxxxxxx] On
Behalf Of David Gibbs
Sent: Tuesday, January 17, 2006 9:30 AM
To: pctech@xxxxxxxxxxxx
Subject: [PCTECH] Bad viruses?


Folks:

Anyone else experiencing something like this ...

I've been receiving a number of messages ... all have spoofed 'from'
addresses, and look and feel JUST like a virus trying to replicate
itself ... but the attached file is NOT something that can be executed.

The attached filename is something like "Original Message.B64".

MY mail system isn't mangling the file name ... and there are no other
headers that might indicate that an intermediary system is either (there
isn't an intermediary in fact).

Any thoughts?

Thanks!

david