Security Incidents mailing list archives

Re: Weird UDP packets


From: peak () ARGO TROJA MFF CUNI CZ (Pavel Kankovsky)
Date: Wed, 8 Mar 2000 10:04:35 +0100


On Mon, 6 Mar 2000, Damian Gerow wrote:

I've been watching my firewall logs, and in the past week something has
cropped up.  The firewall (all packets _do_ have a destination of the
firewall) is a filtering, forwarding firewall protecting both Linux and
NT servers.  It does not run Samba, only SSH.  The weird part of it is
that packets are coming from port 137 and going to port 137, and always
three packets from a different source each time.  Can anyone help me
with this one?

I have been observing a similar thing and found a correlation between
instances of this netbios-ns junk and http accesses. All from MS
Internet Exploder 4 or 5 on various Windoze flavours. Do not ascribe to...

--Pavel Kankovsky aka Peak  [ Boycott Microsoft--http://www.vcnet.com/bms ]
"Resistance is futile. Open your source code and prepare for assimilation."


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