Re: Newest Nimda variant? Scanning ftp,telnet,smtp,snmp?

From: H C (keydet89at_private)
Date: Thu Dec 20 2001 - 04:44:17 PST

  • Next message: H C: "Re: NT Compromise"

    > Can someone point me to a recent and fairly complete
    > Nimda analysis?
    
    Don't know why you didn't bother to check CERT:
    
    http://www.cert.org/advisories/CA-2001-26.html
    
    > I have logs of an infected host that's not only
    > doing the "GET .../c+dir"
    > thing and scanning for Windows shares, but also
    > scanning for open TCP
    > ports 20, 21, 23, and 25, *and* UDP 161.
    
    So your web logs are receiving the directory
    transversal attempts...is the first entry a query for
    '/scripts/root.exe'?  
    
    Also these other ports...20, 21, etc...are you seeing
    simply SYN packets are your firewall?  What about the
    Windows shares scan...did you capture all of the
    packet data, or did you get just the SYN packets?
     
    > Is this a variant I've not read about, or am I
    > possibly cross-infected
    > with Nimda *and* something else?
    
    If you were infected w/ Nimda, what makes you think
    that  you'd be *receiving* the scans?  If you were
    infected w/ Nimda, you'd be getting calls or emails
    from people, or catching it via egress filtering at
    your firewall.
    
    > Any info gratefully received,
    
    I'm curious to know why suddenly everyone seems to
    think that any scanning activity is attributed to a
    worm.  It's pretty clear that many folks are now just
    posting to the lists w/o doing any of their own
    background research (as evidenced by Glenn's post),
    but why even suggest that it's a worm if there is no
    information to support that assumption?
    
    
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