Virus intercepted

[MAILER-DAEMON@xxxxxxxxxxx]

A message sent from Web Mail Upgrade <sntmusic@xxxxxxxxxxxxx> to
        xfs-masters
contained Email.Phishing.Webmail-5 and has not been accepted for delivery.

The infected machine is likely to be here:
from web82505.mail.mud.yahoo.com (localhost [127.0.0.1])
        by cuda.sgi.com (Spam Firewall) with SMTP id B644D146424B
        for <xfs-masters@xxxxxxxxxxx>; Sun, 30 May 2010 03:58:37 -0700 (PDT)