Security Incidents mailing list archives

RE: Anyone have any ideas?


From: Paulo.Sedrez () weavers com br
Date: Thu, 17 May 2001 23:36:27 -0300 (EST)


On 15-May-2001 Jim Starke wrote:
While running ethereal tonight I saw someone scanning all of the ip
addresses. I scrolled back and saw that my box was pinged twice and
then approximately 7 minutes later, I saw an attempt to connect to
port 1405 all by the same ip address.

  No. Time                       Source               
Destination           Protocol Info
18960 2001-05-14 22:25:08.2490   206.239.3.90         
xx.xxx.xx.xx          ICMP     Echo (ping) request
18961 2001-05-14 22:25:09.2592   206.239.3.90         
xx.xxx.xx.xx          ICMP     Echo (ping) request
19236 2001-05-14 22:32:44.2349   206.239.3.90         
xx.xxx.xx.xx          TCP      79 > 1405 [RST, ACK] Seq=0
Ack=3813890208
Win=0 Len=0

[...snip...]
I guess my questions are why they were attempting to connect to port
1405 (I don't have any services on that port) and why would they be
using port 79 to make the connection?

Quite the opposite. You just received the RESPONSE to the attempting to
open a connection to port 79/tcp - finger - FROM your machine to
206.239.3.90, and the response was RST - no service on that port.

-----
Paulo F. Sedrez
Diretor de Tecnologia
Weavers Network Consulting      Tel/Fax: +55-21-239-3190
http://www.weavers.com.br       Paulo.Sedrez () weavers com br
--------------------------
Thought of the day:

"When the only tool you have is a hammer, you tend to treat everything
as if it were a nail."
-- Abraham Maslow


Current thread: