[OPLINTECH] Port Scans from Domain Controllers
Mann, James H.
JMann@gcpl.lib.oh.us
Thu, 21 Apr 2005 15:36:46 -0400
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Chad
It is possible that you have a Trojan or worm that is port scanning.
1215 is pretty widely used. This may help:
http://www.simovits.com/sve/nyhetsarkiv/1999/nyheter9902.html
=20
You should also ask the help desk to put a monitor on your system.
=20
Jim Mann
Technology Coordinator
Greene County Public Library
Xenia Ohio 45385
(937) 376-2996 x210
mailto: jmann@gcpl.lib.oh.us
_____ =20
From: oplintech-admin@oplin.org [mailto:oplintech-admin@oplin.org] On
Behalf Of Chad Salamon
Sent: Thursday, April 21, 2005 1:56 PM
Cc: oplintech@oplin.org
Subject: Re: [OPLINTECH] Port Scans from Domain Controllers
=20
Some updates. One suspicious entry in the perimeter firewall -- =20
Apr 21 10:52:32 156.63.130.100 66.213.124.203
UDP : 1105 ACCEPT =20
That IP is a State of Ohio IP, and I don't know what could possibly run
on udp 1105. I have no idea if this is related. Also, is there a reason
why I can't stop the Terminal Services service. All buttons were grayed
out on the service, and it was started. I was able to disable it, but
that won't actually take affect until after a restart. It just looked
suspicious.
Chad Salamon=20
Library Systems Administrator=20
Stow-Monroe Falls Public Library=20
330-688-3295=20
csalamon@oplin.org=20
Chad Salamon wrote:=20
I have Sygate firewall installed on my machine and I noticed this
morning that I was being port scanned from both domain controllers
(windows 2000) on our network. Both domain controllers initiated a port
scan almost simultaneously. They scanned UDP ports 1179, 1191, 1201,
and 1215. I've never seen traffic like this coming from the domain
controllers. Does this sound like something innocent -- or do we have a
problem? I will continue researching this, but any ideas or suggestions
would be greatly appreciated.
--=20
Chad Salamon=20
Library Systems Administrator=20
Stow-Monroe Falls Public Library=20
330-688-3295=20
csalamon@oplin.org=20
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w:st=3D"on"><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>Chad</span></font></st1:place></st1:country-region><font =
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color=3Dnavy face=3DArial><span =
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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>It is possible that you have a =
Trojan or worm
that is port scanning. 1215 is pretty widely used. This may =
help:<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><a
href=3D"http://www.simovits.com/sve/nyhetsarkiv/1999/nyheter9902.html">ht=
tp://www.simovits.com/sve/nyhetsarkiv/1999/nyheter9902.html</a><o:p></o:p=
></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>You should also ask the help desk =
to put a
monitor on your system.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;mso-no-proof:yes'>Jim Mann</span></font><span
style=3D'mso-no-proof:yes'><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;mso-no-proof:yes'>Technology =
Coordinator</span></font><span
style=3D'mso-no-proof:yes'><o:p></o:p></span></p>
<p class=3DMsoNormal><st1:place w:st=3D"on"><st1:PlaceName =
w:st=3D"on"><font size=3D2
color=3Dblack face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
mso-no-proof:yes'>Greene</span></font></st1:PlaceName><font size=3D2
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;mso-no-proof:yes'> =
<st1:PlaceType
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face=3DArial><span =
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Public Library</span></font><span =
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mso-no-proof:yes'>Xenia</span></font></st1:City><font size=3D2 =
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<st1:State w:st=3D"on">Ohio</st1:State>
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w:st=3D"on">45385</st1:PostalCode></span></font></st1:place><span
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<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;mso-no-proof:yes'>(937) 376-2996 =
x210</span></font><span
style=3D'mso-no-proof:yes'><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;mso-no-proof:yes'>mailto: <a
href=3D"mailto:jmann@gcpl.lib.oh.us">jmann@gcpl.lib.oh.us</a></span></fon=
t><o:p></o:p></p>
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style=3D'font-size:10.0pt;font-family:Tahoma;color:windowtext;font-weight=
:bold'>From:</span></font></b><font
size=3D2 color=3Dblack face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma;
color:windowtext'> oplintech-admin@oplin.org =
[mailto:oplintech-admin@oplin.org]
<b><span style=3D'font-weight:bold'>On Behalf Of </span></b>Chad =
Salamon<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Thursday, April 21, =
2005
1:56 PM<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> =
oplintech@oplin.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Re: [OPLINTECH] =
Port
Scans from Domain Controllers</span></font><font color=3Dblack><span
style=3D'color:windowtext'><o:p></o:p></span></font></p>
</div>
<p class=3DMsoNormal><font size=3D3 color=3Dblack face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D3 color=3Dblack face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>Some updates. One suspicious entry in the =
perimeter
firewall -- <br>
Apr 21 10:52:32
156.63.130.100 =
66.213.124.203
UDP : 1105 =
ACCEPT <br>
That IP is a State of <st1:State w:st=3D"on"><st1:place w:st=3D"on">Ohio =
IP</st1:place></st1:State>,
and I don't know what could possibly run on udp 1105. I have no idea if =
this is
related. Also, is there a reason why I can't stop the Terminal Services
service. All buttons were grayed out on the service, and it was started. =
I was
able to disable it, but that won't actually take affect until after a =
restart.
It just looked suspicious.<o:p></o:p></span></font></p>
<div>
<p class=3DMsoNormal><font size=3D3 color=3Dblack face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>Chad Salamon <br>
Library Systems Administrator <br>
Stow-Monroe Falls Public Library <br>
330-688-3295 <br>
<a href=3D"mailto:csalamon@oplin.org">csalamon@oplin.org</a> =
<o:p></o:p></span></font></p>
</div>
<p class=3DMsoNormal><font size=3D3 color=3Dblack face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'><br>
<br>
Chad Salamon wrote: <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D3 color=3Dblack face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>I have Sygate firewall installed on my =
machine and I
noticed this morning that I was being port scanned from both domain =
controllers
(windows 2000) on our network. Both domain controllers initiated a =
port
scan almost simultaneously. They scanned UDP ports 1179, 1191, =
1201, and
1215. I've never seen traffic like this coming from the domain =
controllers.
Does this sound like something innocent -- or do we have a problem? I =
will
continue researching this, but any ideas or suggestions would be greatly
appreciated.<o:p></o:p></span></font></p>
<div>
<p class=3DMsoNormal><font size=3D3 color=3Dblack face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>-- <br>
Chad Salamon <br>
Library Systems Administrator <br>
Stow-Monroe Falls Public Library <br>
330-688-3295 <br>
<a href=3D"mailto:csalamon@oplin.org">csalamon@oplin.org</a> =
<o:p></o:p></span></font></p>
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