RE: Distributed ICMP/UDP scan or attack?

From: Edward Beheler (edward.behelerat_private)
Date: Mon Jun 17 2002 - 14:24:19 PDT

  • Next message: Boyan Krosnov: "RE: Distributed ICMP/UDP scan or attack?"

    These scans show up on my IDS like this:
    
    [**] [1:480:2] ICMP PING speedera [**]
    [Classification: Misc activity] [Priority: 3]
    06/13-08:38:18.651820 64.15.251.198 -> 63.254.234.169
    ICMP TTL:50 TOS:0x0 ID:58844 IpLen:20 DgmLen:84
    Type:8  Code:0  ID:39681   Seq:30247  ECHO
    
    There is a thread discussing this issue here:
    http://www.incidents.org/archives/intrusions/msg03580.html
    
    There is an article about this here:
    http://www.linuxsecurity.com/articles/firewalls_article-2064.html
    
    Lots of information about the subject by asking google "speedera ping".
    
    Edward Beheler
    BOFH
    
    -----Original Message-----
    From: Jason Dixon [mailto:jasondixonat_private] 
    Sent: Sunday, June 16, 2002 5:49 AM
    To: incidentsat_private
    Subject: Distributed ICMP/UDP scan or attack?
    
    
    Hi all:
    
    Please excuse me if this is a newbie question, I'm not sure how to go
    about searching for answers on intrustion/scanner patterns and the like.
    I noticed this series of scans/connections in my firewall log this
    morning.  The first thing that came to mind was the Bind 9
    vulnerability, but there aren't any exploits available yet, IIRC.
    
    As you can see, there was a series of three icmp queries followed by two
    unsuccessful DNS connections.  Has anyone seen this?  
    
    < Jun  15  15:47:31  dc0  208.185.54.14  ->  x.x.x.x  icmp
    < Jun  15  15:47:31  dc0  64.15.251.198  ->  x.x.x.x  icmp
    < Jun  15  15:47:31  dc0  213.61.6.2  ->  x.x.x.x  icmp
    < Jun  15  15:47:31  dc0  207.235.98.194  ->  x.x.x.x  icmp
    < Jun  15  15:47:31  dc0  64.0.96.12  ->  x.x.x.x  icmp
    < Jun  15  15:47:31  dc0  209.240.77.130  ->  x.x.x.x  icmp
    < Jun  15  15:47:31  dc0  65.119.25.162  ->  x.x.x.x  icmp
    < Jun  15  15:47:31  dc0  204.176.88.5  ->  x.x.x.x  icmp
    < Jun  15  15:47:32  dc0  64.14.117.10  ->  x.x.x.x  icmp
    < Jun  15  15:47:32  dc0  212.62.17.145  ->  x.x.x.x  icmp
    < Jun  15  15:47:42  dc0  64.15.251.198  ->  x.x.x.x  icmp
    < Jun  15  15:47:42  dc0  208.185.54.14  ->  x.x.x.x  icmp
    < Jun  15  15:47:42  dc0  213.61.6.2  ->  x.x.x.x  icmp
    < Jun  15  15:47:42  dc0  207.235.98.194  ->  x.x.x.x  icmp
    < Jun  15  15:47:42  dc0  64.0.96.12  ->  x.x.x.x  icmp
    < Jun  15  15:47:42  dc0  209.240.77.130  ->  x.x.x.x  icmp
    < Jun  15  15:47:42  dc0  204.176.88.5  ->  x.x.x.x  icmp
    < Jun  15  15:47:42  dc0  65.119.25.162  ->  x.x.x.x  icmp
    < Jun  15  15:47:43  dc0  64.14.117.10  ->  x.x.x.x  icmp
    < Jun  15  15:47:43  dc0  212.62.17.145  ->  x.x.x.x  icmp
    < Jun  15  15:47:52  dc0  208.185.54.14  ->  x.x.x.x  icmp
    < Jun  15  15:47:52  dc0  64.15.251.198  ->  x.x.x.x  icmp
    < Jun  15  15:47:52  dc0  213.61.6.2  ->  x.x.x.x  icmp
    < Jun  15  15:47:52  dc0  207.235.98.194  ->  x.x.x.x  icmp
    < Jun  15  15:47:52  dc0  64.0.96.12  ->  x.x.x.x  icmp
    < Jun  15  15:47:52  dc0  209.240.77.130  ->  x.x.x.x  icmp
    < Jun  15  15:47:52  dc0  65.119.25.162  ->  x.x.x.x  icmp
    < Jun  15  15:47:52  dc0  204.176.88.5  ->  x.x.x.x  icmp
    < Jun  15  15:47:52  dc0  64.14.117.10  ->  x.x.x.x  icmp
    < Jun  15  15:47:53  dc0  212.62.17.145  ->  x.x.x.x  icmp
    < Jun  15  15:48:01  dc0  208.185.54.14,1687  ->  x.x.x.x,53  udp < Jun
    15  15:48:01  dc0  64.15.251.198,32865  ->  x.x.x.x,53  udp < Jun  15
    15:48:01  dc0  213.61.6.2,17613  ->  x.x.x.x,53  udp < Jun  15  15:48:01
    dc0  207.235.98.194,54613  ->  x.x.x.x,53  udp < Jun  15  15:48:01  dc0
    64.0.96.12,50831  ->  x.x.x.x,53  udp < Jun  15  15:48:02  dc0
    209.240.77.130,39805  ->  x.x.x.x,53  udp < Jun  15  15:48:02  dc0
    65.119.25.162,3058  ->  x.x.x.x,53  udp < Jun  15  15:48:02  dc0
    204.176.88.5,8329  ->  x.x.x.x,53  udp < Jun  15  15:48:02  dc0
    64.14.117.10,4502  ->  x.x.x.x,53  udp < Jun  15  15:48:02  dc0
    212.62.17.145,54557  ->  x.x.x.x,53  udp < Jun  15  15:48:11  dc0
    64.15.251.198,32865  ->  x.x.x.x,53  udp < Jun  15  15:48:11  dc0
    208.185.54.14,1687  ->  x.x.x.x,53  udp < Jun  15  15:48:11  dc0
    213.61.6.2,17613  ->  x.x.x.x,53  udp < Jun  15  15:48:11  dc0
    207.235.98.194,54613  ->  x.x.x.x,53  udp < Jun  15  15:48:11  dc0
    64.0.96.12,50831  ->  x.x.x.x,53  udp < Jun  15  15:48:11  dc0
    209.240.77.130,39805  ->  x.x.x.x,53  udp < Jun  15  15:48:11  dc0
    65.119.25.162,3058  ->  x.x.x.x,53  udp < Jun  15  15:48:11  dc0
    204.176.88.5,8329  ->  x.x.x.x,53  udp < Jun  15  15:48:12  dc0
    64.14.117.10,4502  ->  x.x.x.x,53  udp < Jun  15  15:48:12  dc0
    212.62.17.145,54557  ->  x.x.x.x,53  udp
    
    -- 
    Jason Dixon
    RHCE
    
    
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