Security Incidents: Re: TCP 445 Scan?

[Tom_Staskiewicz () fcnb com]

Charles,

Go  out  to  Google  and search on "port 445" and also "RFC 1568". RFC 1568
explains  port  445  and  when  you  search on port 445, the Internet Storm
Center  and Dshield have logged the DoS info using this port. It looks like
you  are  not  alone.  Also  copy  this  link  and  check  out  the article
http://www.vnunet.com/News/1131065  and  its  links  to  Microsoft for more
information.

Regards,

Tom Staskiewicz
Information Security Officer
First Consumers National Bank
' 503.520.7947


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                    Charles Hamby                                                                          
                    <fixer () gci ne        To:     incidents () securityfocus com                               
                    t>                   cc:                                                               
                                         Subject:     TCP 445 Scan?                                        
                    02/27/03                                                                               
                    10:25 AM                                                                               
                                                                                                           
                                                                                                           






Morning/Afternoon All,

Has anyone else recently been pegged with a large number of distributed
TCP 445 scans over a short amount of time (within a few minutes)?  A
couple of days ago I was hit by roughly 60+ scans in a short amount of
time; when I waded through it it wound up being about 45 unique IP address
all looking for TCP 445.  Below is an excerpt from my fireall log
(Netscreen).  Has anyone else been seeing these sorts of scans lately?
I've only seen the one scan, so I haven't had a chance to capture any more
traffic.

-CDH


2003-2-23 23:05:52 Deny  213.51.247.114->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:49 Deny  213.51.247.114->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:36 Deny  213.51.21.143->W.X.Y.Z   0 sec TCP PORT 445
2003-2-23 23:05:33 Deny  213.51.21.143->W.X.Y.Z   0 sec TCP PORT 445
2003-2-23 23:05:30 Deny  12.242.204.86->W.X.Y.Z   0 sec TCP PORT 445
2003-2-23 23:05:27 Deny  12.242.204.86->W.X.Y.Z   0 sec TCP PORT 445
2003-2-23 23:05:23 Deny  62.253.118.133->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:21 Deny  65.163.177.202->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:20 Deny  62.253.118.133->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:19 Deny  217.1.167.84->W.X.Y.Z             0 sec TCP PORT
445
2003-2-23 23:05:18 Deny  65.163.177.202->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:18 Deny  12.231.241.129->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:18 Deny  24.66.39.214->W.X.Y.Z             0 sec TCP PORT
445
2003-2-23 23:05:17 Deny  12.229.115.40->W.X.Y.Z   0 sec TCP PORT 445
2003-2-23 23:05:16 Deny  62.190.172.203->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:16 Deny  217.1.167.84->W.X.Y.Z             0 sec TCP PORT
445
2003-2-23 23:05:16 Deny  217.162.202.177->W.X.Y.Z 0 sec TCP PORT 445
2003-2-23 23:05:16 Deny  217.162.183.155->W.X.Y.Z 0 sec TCP PORT 445
2003-2-23 23:05:15 Deny  12.231.241.129->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:15 Deny  24.66.39.214->W.X.Y.Z             0 sec TCP PORT
445
2003-2-23 23:05:14 Deny  141.153.232.196->W.X.Y.Z 0 sec TCP PORT 445
2003-2-23 23:05:14 Deny  12.229.115.40->W.X.Y.Z   0 sec TCP PORT 445
2003-2-23 23:05:14 Deny  12.231.161.15->W.X.Y.Z   0 sec TCP PORT 445
2003-2-23 23:05:13 Deny  217.162.7.16->W.X.Y.Z             0 sec TCP PORT
445
2003-2-23 23:05:13 Deny  62.190.172.203->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:13 Deny  12.242.250.247->W.X.Y.Z  0 sec TCP PORT 445
2003-2-23 23:05:13 Deny  217.162.202.177->W.X.Y.Z 0 sec TCP PORT 445

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