Port 17889 - new attack?

[James Willmore <jwillmore () cyberia com>]

This is an email sent to me by SWATCH.  I've gotton quite a few of these packets from various sources.  What is this??  
Although I have dropped the packet, I wonder what this is.

Any ideas, thoughts, answers are welcomed.

Thanks.

Begin forwarded message:

Date: Tue, 9 Oct 2001 01:34:22 -0400
From: root <root@xxxx>
To: root@xxxx
Subject: 'SWATCH - Droped packet'


Oct  9 01:34:15 xxxx kernel: Shorewall:net2all:DROP:IN=ppp0 OUT= MAC= SRC=172.180.19.4 DST=x.x.x.x LEN=48 TOS=0x00 
PREC=0x00 TTL=115 ID=63493 DF PROTO=TCP SPT=21027 DPT=17889 WINDOW=8192 RES=0x00 SYN URGP=0 


-- 
Jim Willmore
jwillmore () cyberia com

----------------------------------------------------------------------------
This list is provided by the SecurityFocus ARIS analyzer service.
For more information on this free incident handling, management 
and tracking system please see: http://aris.securityfocus.com