Re: Yet Another Nimda Thread (YANT)

From: Tracey Losco (tal1at_private)
Date: Fri Sep 21 2001 - 10:43:56 PDT

  • Next message: Mike Lewinski: "Re: Yet Another Nimda Thread (YANT)"

    Are you asking whether anyone has seen a lack of the scans in their 
    own netblock (ie: 128.122), or in everything inclusive of that 
    netblock (ie: 128)?
    
    I found a really cool script from this guy Bryan Andersen on one of 
    the newsgroups, that tests for how many pokes you've seen from the 
    Nimda worm, and as of 2:00pm yesterday, I haven't seen any from 
    inside our own.  See below:
    
    Column i represents .ida requests on our network, column /16 is our 
    network representing a Nimda file request and you know the rest from 
    there.
    
    20/Sep/2001:14  i 1     /16 0   /8 2    /0 2
    20/Sep/2001:15  i 0     /16 0   /8 1    /0 1
    20/Sep/2001:16  i 0     /16 0   /8 0    /0 0
    20/Sep/2001:17  i 1     /16 0   /8 0    /0 0
    20/Sep/2001:18  i 1     /16 0   /8 1    /0 1
    20/Sep/2001:19  i 0     /16 0   /8 0    /0 0
    20/Sep/2001:20  i 0     /16 0   /8 0    /0 1
    20/Sep/2001:21  i 0     /16 0   /8 0    /0 2
    20/Sep/2001:22  i 0     /16 0   /8 0    /0 0
    20/Sep/2001:23  i 1     /16 0   /8 0    /0 2
    21/Sep/2001:00  i 1     /16 0   /8 0    /0 0
    21/Sep/2001:01  i 1     /16 0   /8 1    /0 1
    21/Sep/2001:02  i 0     /16 0   /8 2    /0 2
    21/Sep/2001:03  i 0     /16 0   /8 1    /0 1
    21/Sep/2001:04  i 1     /16 0   /8 1    /0 3
    21/Sep/2001:05  i 0     /16 0   /8 3    /0 4
    21/Sep/2001:06  i 0     /16 0   /8 1    /0 1
    21/Sep/2001:07  i 1     /16 0   /8 0    /0 1
    21/Sep/2001:08  i 0     /16 0   /8 0    /0 0
    21/Sep/2001:09  i 0     /16 0   /8 0    /0 0
    21/Sep/2001:10  i 1     /16 0   /8 1    /0 2
    21/Sep/2001:11  i 0     /16 0   /8 0    /0 0
    21/Sep/2001:12  i 0     /16 0   /8 0    /0 0
    21/Sep/2001:13  i 1     /16 0   /8 0    /0 0
    
    I don't know whether to be happy, of whether to be in fear of the 
    storm to come...
    
    --------------------------------------------------------------------
    Tracey Losco
    Network Security Analyst		securityat_private
    ITS - Network Services			http://www.nyu.edu/its/security
    New York University			(212) 998 - 3433
    
    PGP Fingerprint: 8FFB FE47 6156 7BF0  B19E 462B 9DFE 51F5
    
    
    At 12:46 PM -0400 9/21/01, Portnoy, Gary wrote:
    >I heard there were a few reports of Nimda going completely quiet in certain
    >netblocks, but none were substantiated.  I haven't seen a single Nimda IIS
    >exploit attempt since a little before 10 AM (EST).  I checked my IDS, apache
    >logs, IIS logs -- nothing.  Seems like it went silent.  Still seeing CodeRed
    >though. Can any one correlate?  I am somewhere in the 12.27 netblock :)
    >
    >-Gary-
    >
    >Gary Portnoy
    >Network Administrator
    >gportnoyat_private
    >
    >PGP Fingerprint: 9D69 6A39 642D 78FD 207C  307D B37D E01A 2E89 9D2C
    >
    >
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