Re: Increasing ICMP Echo Requests

From: Kevin Patz (jambo_catat_private)
Date: Mon Aug 18 2003 - 13:45:51 PDT

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    Upon reading of this, I enabled logging of ping 
    requests on my firewall.  So far I've only seen three 
    with len=92:
    
    24.64.90.16 (Shaw Communcations)
    24.60.234.130 (Comcast, formerly attbi)
    24.61.246.103 (Comcast, formerly attbi)
    
    My IP is on Comcast, formerly attbi, on a 24.62 IP 
    range.  I also have some pings with len=60 but they 
    look more like "normal" ICMP echo requests.
    
    >Ken,
    >We're seeing the same ICMP pattern.
    >Is this from the blaster? We are looking into 
    filtering ICMP echo 
    >request on our external routers.
    >
    >Here is a snip from our IDS,
    > [**] [1:483:2] ICMP PING CyberKit 2.2 Windows [**]
    >[Classification: Misc activity] [Priority: 3]
    >[Xref => http://www.whitehats.com/info/IDS154]
    >Event ID: 179333     Event Reference: 0
    >08/18/03-18:27:28.386411 65.83.120.72 -> xx.xx.xx.xx
    >ICMP TTL:118 TOS:0x0 ID:21399 IpLen:20 DgmLen:92
    >Type:8  Code:0  ID:2   Seq:61261  ECHO
    >AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA 
    AA  ................
    >AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA 
    AA  ................
    >AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA 
    AA  ................
    >AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA 
    AA  ................
    >
    >
    >Thanks
    >Daniel Williams
    >Cedar Document Technologies
    
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