New variants of Slapper worm using UDP ports other than 2002 today -- 1978 and 4156 -- (and they were apparently active yesterday as well)

["H. Morrow Long" <morrow.long () yale edu>]

Several (see http://diswww.mit.edu/charon/nanog/52239) have noticed
Slapper using UDP port 4156 today (and apparently yesterday as well
as I can see from netflow logs).

I've also noticed a Slapper variant apparently using UDP port 1978
today as well (one of our hosts on which Slapper is no longer active
is continuing to receive UDP packets to and from port 1978 from many
Internet sites).

H. Morrow Long
University Information Security Officer
Director, Information Security Office
Yale University, ITS



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