Re: Another odd scan...

From: Jose Nazario (joseat_private)
Date: Fri Jul 12 2002 - 15:23:17 PDT

  • Next message: Michael H. Warfield: "Re: Ideas? Port 21 SYNs, slow"

    On Thu, 11 Jul 2002, Adam Young wrote:
    
    > 	I got this for about 2 minutes, every 20 seconds or so, I just
    > thought it especially weird with "CWR ECE SYN", looking as to what the
    > meaning of this is.
    
    ECE: explicit congestion echo
    CWR: RFC2481 says "congestion window reduced"
    
    here's a whois dig for that:
    
    http://www.geektools.com/cgi-bin/proxy.cgi?query=80.97.3.255&targetnic=auto
    
    as for the port (77/TCP) being connected to, the saint tutorial suggests
    its a well known and used backdoor for the rpc.yppasswdd service on
    solaris:
    
    http://www.wwdsi.com/demo/saint_tutorials/Vulnerability_Exploits.html
    
    hope that helps.
    
    ___________________________
    jose nazario, ph.d.			joseat_private
    					http://www.monkey.org/~jose/
    
    
    
    
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