[cac-alert] Virus update

cac-alert at u.washington.edu cac-alert at u.washington.edu
Tue Jan 27 15:43:54 PST 2004

The email virus storm on the Internet continues. Considerable progress
has been made here to control its impact on the UW.
o Since Monday afternoon when reliable virus detection DAT files
became available, more than 300,000 messages infected with
W32/MyDoom-a were detected and filtered.
o Some mail bound for or through
addresses from outside the University networks continues to experience
delays averaging 30-90 minutes. Most mail is getting through
o Email sent and received within the UW is flowing normally, but with
occasional periods of slowness
o Efforts are underway to identify infected UW computers. Infected
computers may have their network connection limited or blocked.
o The campus virus filter now recognizes and blocks email messages
infected with these viruses. In addition, all .exe, .cmd, and
.zip attachments are being blocked regardless of whether they
are identified as being infected. This is a temporary measure.
o The email generated by these viruses, much of it with spoofed From:
addresses, is producing a large amount of "bounce" and "undeliverable"
response email that is confusing many people.
o Information about the virus and what to do if you get infected
is located on...
which will continue to be updated as things develop.

Please remind everyone to be very cautious about opening any unexpected
email attachment. Also, please emphasize the importance of running
anti-virus software and keeping it up-to-date.

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