[nsp-sec] anyone got anything for 71.5.250.88

Smith, Donald Donald.Smith at qwest.com
Tue May 25 16:19:58 EDT 2010


Lots of 445 scanning reported to dshield.

http://isc.sans.org/ipdetails.html?ip=71.5.250.88


(coffee != ) & (!coffee == sleep)
 Donald.Smith at qwest.com
________________________________________
From: nsp-security-bounces at puck.nether.net [nsp-security-bounces at puck.nether.net] On Behalf Of Joel Rosenblatt [joel at columbia.edu]
Sent: Tuesday, May 25, 2010 2:03 PM
To: Jose Nazario; Yiming Gong
Cc: nsp-security NSP
Subject: Re: [nsp-sec] anyone got anything for 71.5.250.88

----------- nsp-security Confidential --------

I got these from a 2 hour look back

2010/05/25 14:11:01 71.5.250.88.3563 -> 128.59.3.13.445 6(SYN) 1 48
2010/05/25 14:27:49 4.53.80.6 -> 71.5.250.88 ICMP_ECHOREPLY 1 56
2010/05/25 14:27:50 71.5.250.88.3608 -> 156.111.42.63.445 6(SYN) 1 48
2010/05/25 14:37:30 71.5.250.88.4187 -> 160.39.244.43.445 6(SYN) 2 96
2010/05/25 14:40:04 71.5.250.88.1815 -> 160.39.23.10.445 6(SYN) 2 96
2010/05/25 15:18:04 71.5.250.88.3189 -> 156.111.201.26.445 6(SYN) 1 48
2010/05/25 15:38:27 71.5.250.88.2778 -> 128.59.84.112.445 6(SYN) 1 48

The second one is a little weird .. looks like 71.4.250.88 pinged our gateway router

Joel

--On Tuesday, May 25, 2010 3:43 PM -0400 Jose Nazario <jose at arbor.net> wrote:

> ----------- nsp-security Confidential --------
>
> On Tue, 25 May 2010, Yiming Gong wrote:
>
>> Thanks a lot!
>>
>> Mike and Jose, are you guys okay with I sharing the data you provide in the
>> emails?
>
> you may, indeed.
>
>> On 05/25/2010 02:31 PM, Mike Tancsa wrote:
>>>  At 01:16 PM 5/25/2010, Yiming Gong wrote:
>>>
>>> >  ----------- nsp-security Confidential --------
>>> >
>>> >  Thanks for looking into it Jose, i have some internal port 445 as
>>> >  well as icmp 3/13 records for this ip, but apparently the ip is
>>> >  using slow scan technique and more evidence is needed.
>>> >
>>> >  If folks have more stuff, please send them along, thanks.
>>> >
>>>     From a couple of parts in our network (11647) GMT-400.  The ICMP
>>>  messages appear to be due to hosts being not reachable based on the
>>>  scan target.
>>>
>>>            StartTime    Flgs  Proto            SrcAddr  Sport   Dir
>>>            DstAddr  Dport  TotPkts   TotBytes State
>>>  2010-05-19 17:27:4
>>>  Ne         tcp        71.5.250.88.2271      ->      198.73.240.105.445
>>>              2         96    S_
>>>  2010-05-20 03:56:0
>>>  Ne         tcp        71.5.250.88.4752      ->        67.43.133.86.445
>>>              2         96    S_
>>>  2010-05-20 09:20:5
>>>  Ne         tcp        71.5.250.88.4689      ->      199.85.118.123.445
>>>              2         96    S_
>>>  2010-05-20 10:59:0
>>>  Ne         tcp        71.5.250.88.2870      ->         64.7.147.39.445
>>>              2         96    S_
>>>  2010-05-20 12:14:5
>>>  Ne         tcp        71.5.250.88.1653      ->        67.43.139.59.445
>>>              2         96    S_
>>>  2010-05-20 12:50:3
>>>  Ne         tcp        71.5.250.88.2130      ->       199.85.119.72.445
>>>              2         96    S_
>>>  2010-05-20 13:16:5
>>>  Ne         tcp        71.5.250.88.2475      ->        67.43.140.63.445
>>>              2         96    S_
>>>  2010-05-20 16:30:2
>>>  Ne         tcp        71.5.250.88.1111      ->        67.43.129.25.445
>>>              2         96    S_
>>>  2010-05-20 19:52:5
>>>  Ne         tcp        71.5.250.88.2770      ->       198.73.181.16.445
>>>              2         96    S_
>>>  2010-05-20 22:37:0
>>>  Ne         tcp        71.5.250.88.2681      ->       198.73.240.23.445
>>>              2         96    S_
>>>  2010-05-21 01:13:5
>>>  Ne         tcp        71.5.250.88.2520      ->         64.7.147.31.445
>>>              2         96    S_
>>>  2010-05-21 04:44:3
>>>  Ne         tcp        71.5.250.88.1851      ->        67.43.139.62.445
>>>              2         96    S_
>>>  2010-05-21 06:08:0
>>>  Ne         tcp        71.5.250.88.4673      ->        67.43.137.27.445
>>>              2         96    S_
>>>  2010-05-21 07:15:4
>>>  Ne         tcp        71.5.250.88.1723      ->        67.43.140.39.445
>>>              2         96    S_
>>>  2010-05-21 08:55:1
>>>  Ne         tcp        71.5.250.88.3061      ->      199.71.252.120.445
>>>              2         96    S_
>>>  2010-05-21 09:20:2
>>>  Ne         tcp        71.5.250.88.4924      ->       199.85.119.47.445
>>>              2         96    S_
>>>  2010-05-21 11:57:3
>>>  Ne         tcp        71.5.250.88.1540      ->        67.43.133.90.445
>>>              2         96    S_
>>>  2010-05-21 16:54:3
>>>  Ne         tcp        71.5.250.88.2235      ->       198.73.181.43.445
>>>              2         96    S_
>>>  2010-05-22 10:50:0
>>>  Ne         tcp        71.5.250.88.2607      ->         64.7.147.98.445
>>>              2         96    S_
>>>  2010-05-22 13:36:2
>>>  Ne         tcp        71.5.250.88.3221      ->       67.43.133.126.445
>>>              2         96    S_
>>>  2010-05-22 18:02:2
>>>  Ne         tcp        71.5.250.88.1118      ->       198.73.181.73.445
>>>              2         96    S_
>>>  2010-05-22 18:11:5
>>>  Ne         tcp        71.5.250.88.1616      ->         64.7.147.20.445
>>>              2         96    S_
>>>  2010-05-23 00:17:2
>>>  Ne         tcp        71.5.250.88.4342      ->        67.43.139.61.445
>>>              2         96    S_
>>>  2010-05-23 01:35:1
>>>  Ne         tcp        71.5.250.88.3214      ->      198.73.181.125.445
>>>              2         96    S_
>>>  2010-05-23 02:49:3
>>>  Ne         tcp        71.5.250.88.2466      ->       198.73.181.28.445
>>>              2         96    S_
>>>  2010-05-23 04:35:2
>>>  Ne         tcp        71.5.250.88.1322      ->        67.43.136.76.445
>>>              2         96    S_
>>>  2010-05-23 12:36:3
>>>  Ne         tcp        71.5.250.88.4194      ->        67.43.136.95.445
>>>              2         96    S_
>>>  2010-05-23 15:25:3
>>>  Ne         tcp        71.5.250.88.2515      ->         64.7.147.39.445
>>>              2         96    S_
>>>  2010-05-24 01:17:2
>>>  Ne         tcp        71.5.250.88.2924      ->        64.7.134.125.445
>>>              2         96    S_
>>>  2010-05-24 02:03:4
>>>  Ne         tcp        71.5.250.88.2151      ->        67.43.137.53.445
>>>              2         96    S_
>>>  2010-05-24 04:53:0
>>>  Ne         tcp        71.5.250.88.1413      ->        67.43.133.63.445
>>>              2         96    S_
>>>  2010-05-24 05:57:2
>>>  Ne         tcp        71.5.250.88.3105      ->        67.43.140.59.445
>>>              2         96    S_
>>>  2010-05-24 17:37:5
>>>  Ne         tcp        71.5.250.88.4606      ->       198.73.240.49.445
>>>              2         96    S_
>>>
>>>  and
>>>
>>>            StartTime    Flgs  Proto            SrcAddr  Sport   Dir
>>>            DstAddr  Dport  TotPkts   TotBytes State
>>>  2010-05-20 01:47:4  M
>>>  s       tcp        71.5.250.88.1826      ->         64.7.128.21.445
>>>           4        256    S_
>>>  2010-05-20 02:19:1  e
>>>  s       tcp        71.5.250.88.1266      ->         64.7.141.83.445
>>>           2        124    S_
>>>  2010-05-20 04:30:0  M
>>>  s       tcp        71.5.250.88.1533      ->        206.51.25.42.445
>>>           4        256    S_
>>>  2010-05-20 05:37:3  M
>>>  s       tcp        71.5.250.88.2125      ->         64.7.140.64.445
>>>           6        388    S_
>>>  2010-05-20
>>>  10:46:3  eTs       tcp        71.5.250.88.4135      ->
>>>  64.7.150.35.445           2        124    S_
>>>  2010-05-20
>>>  10:46:3  e        icmp        64.7.150.18.11        ->
>>>  71.5.250.88.0             2        140   TXD
>>>  2010-05-20 11:14:2  M
>>>  s       tcp        71.5.250.88.3621      ->         64.7.135.25.445
>>>           4        256    S_
>>>  2010-05-20 12:53:0  M
>>>  s       tcp        71.5.250.88.3544      ->         64.7.132.49.445
>>>         464      29696    S_
>>>  2010-05-21 01:36:0  M
>>>  s       tcp        71.5.250.88.1940      ->         64.7.141.34.445
>>>           4        256    S_
>>>  2010-05-21 11:13:4  M
>>>  s       tcp        71.5.250.88.3898      ->          64.7.138.1.445
>>>           8        480  S_RA
>>>  2010-05-21 18:46:2  e
>>>  s       tcp        71.5.250.88.1812      ->       199.71.182.71.445
>>>           2        124    S_
>>>  2010-05-21 23:59:0  M
>>>  s       tcp        71.5.250.88.3456      ->         64.7.140.84.445
>>>           6        388    S_
>>>  2010-05-22 02:36:4  e
>>>  s       tcp        71.5.250.88.1592      ->      199.71.182.113.445
>>>           2        124    S_
>>>  2010-05-23 00:01:2  M
>>>  s       tcp        71.5.250.88.2033      ->         64.7.149.72.445
>>>           4        256    S_
>>>  2010-05-23 15:25:5  e
>>>  s       tcp        71.5.250.88.3196      ->        199.71.182.5.445
>>>           2        124    S_
>>>  2010-05-24 05:52:1  M
>>>  s       tcp        71.5.250.88.3942      ->         64.7.138.20.445
>>>           4        256    S_
>>>  2010-05-24 06:42:2  M
>>>  s       tcp        71.5.250.88.3476      ->       206.51.25.111.445
>>>           4        256    S_
>>>  2010-05-24
>>>  09:35:3  eUs       tcp        71.5.250.88.2498      ->
>>>  64.7.141.61.445           2        124    S_
>>>  2010-05-24
>>>  09:35:3  e        icmp         64.7.153.8.259       ->
>>>  71.5.250.88.16391         2        140   URH
>>>  2010-05-24 13:17:3  e
>>>  s       tcp        71.5.250.88.2460      ->       199.71.182.58.445
>>>           2        124    S_
>>>  2010-05-24 21:11:2  M
>>>  s       tcp        71.5.250.88.2157      ->         64.7.150.96.445
>>>           6        388    S_
>>>  2010-05-25 03:31:5  M
>>>  s       tcp        71.5.250.88.1731      ->        206.51.25.96.445
>>>           4        256    S_
>>>  2010-05-25 09:58:2  M
>>>  s       tcp        71.5.250.88.2276      ->         64.7.138.85.445
>>>           4        256    S_
>>>  2010-05-25 11:34:5  M
>>>  s       tcp        71.5.250.88.1281      ->         64.7.149.74.445
>>>           6        388    S_
>>>
>>>            ---Mike
>>>
>>>
>>> >  Yiming
>>> >
>>> >  On 05/25/2010 12:11 PM, jose nazario wrote:
>>> >
>>> > >  On May 25, 2010, at 1:08 PM, Yiming Gong wrote:
>>> > >
>>> > >
>>> > >
>>> > > >  Anyone has anything for ip 71.5.250.88? We are having some
>>> > > >  interesting conversation with the customer behind it and we need
>>> > > >  some more evidence, thanks
>>> > > >
>>> > > >
>>> > >  via ATLAS some TCP/445 scan activity.
>>> > >
>>> > >  scan [{u'src': u'71.5.250.88', u'dport': u'445', u'proto': u'6',
>>> > >  u'cc': u'US', u'bytes': u'288', u'start': u'1274222400', u'pkts':
>>> > >  u'6', u'asn': u'2828'}, {u'src': u'71.5.250.88', u'dport': u'445',
>>> > >  u'proto': u'6', u'cc': u'US', u'bytes': u'336', u'start':
>>> > >  u'1274279700', u'pkts': u'7', u'asn': u'2828'}, {u'src':
>>> > >  u'71.5.250.88', u'dport': u'445', u'proto': u'6', u'cc': u'US',
>>> > >  u'bytes': u'288', u'start': u'1274334000', u'pkts': u'6', u'asn':
>>> > >  u'2828'}]
>>> > >
>>>>> _____________________________
>>> > >  jose nazario, ph.d. jose at arbor.net
>>> > >  sr. manager of security research, arbor networks
>>> > >  http://asert.arbor.net/
>>> > >
>>> > >
>>> > >
>>> > >
>>> >
>>> >
>>>> _______________________________________________
>>> >  nsp-security mailing list
>>> >  nsp-security at puck.nether.net
>>> >  https://puck.nether.net/mailman/listinfo/nsp-security
>>> >
>>> >  Please do not Forward, CC, or BCC this E-mail outside of the
>>> >  nsp-security
>>> >  community. Confidentiality is essential for effective Internet
>>> >  security counter-measures.
>>>> _______________________________________________
>>> >
>>>  --------------------------------------------------------------------
>>>  Mike Tancsa,                                      tel +1 519 651 3400
>>>  Sentex Communications,                            mike at sentex.net
>>>  Providing Internet since 1994                    www.sentex.net
>>>  Cambridge, Ontario Canada                         www.sentex.net/mike
>>>
>>>
>>>
>>
>
> --
> -------------------------------------------------------------
> jose nazario, ph.d.           <jose at arbor.net>
> manager of security research  arbor networks
> v: (734) 821 1427             http://asert.arbor.net/
>
>
> _______________________________________________
> nsp-security mailing list
> nsp-security at puck.nether.net
> https://puck.nether.net/mailman/listinfo/nsp-security
>
> Please do not Forward, CC, or BCC this E-mail outside of the nsp-security
> community. Confidentiality is essential for effective Internet security counter-measures.
> _______________________________________________
>



Joel Rosenblatt, Manager Network & Computer Security
Columbia Information Security Office (CISO)
Columbia University, 612 W 115th Street, NY, NY 10025 / 212 854 3033
http://www.columbia.edu/~joel



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