IMPORTANT: One of our mail servers is listed in spamcop's database. If you are using bl.spamcop.net to filter my, see http://www.spamcop.net/bl and reevaluate its use for production systems.
Port 20168 Traffic
Given a recent discussion on our Intrusions list, spikes in traffic to this port can be attributed to a worm which uses this port for tftp file transfers of the worm code. If you see excessive traffic on this port, you may have an infected system on your network.
Windows Update Virus
We received several reports about a new version of a Windows update virus. Like previous similar viruses, this one claims to come from Microsoft and includes a zip file users are asked to execute. In particular as many filters do not strip zip files, you may remind users that Microsoft will never distribute patches via e-mail.
More: http://isc.sans.org/diary.html?date=2003-12-11

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