RE: Possible method to prevent spread of CodeRed and other simila r wo rms

From: corecode (corecodeat_private)
Date: Wed Aug 01 2001 - 14:17:55 PDT

  • Next message: Chris Brenton: "Re: Possible method to prevent spread of CodeRed and other similar worms"

    At 07:26 PM 8/1/2001, Delaney, Gavin J (EASD, IT) wrote:
    >Dave,
    >Restricting tcp/port80 initiated outbound connections from the DMZ is an
    >reasonable approach.
    
    actually restricting tcp:80 outgoing won't stop the worm from spreading.
    the worm itself never uses port 80 for outgoing traffic. it will just 
    connect to port 80 but the port on the attacking machine is some regular 
    outgoing port ( > 1024).
    
    so one had to
    deny tcp from server to any 80
    
    cheerz
       corecode
    
    
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