Re: Idle (Witness) Scanning

From: Filipe Jorge Marques de Almeida (filipeat_private)
Date: Thu May 02 2002 - 19:16:48 PDT

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    On Sat, Apr 27, 2002 at 11:52:54AM +0300, Evrim ULU wrote:
    > So, is there a way to identify open and close(filtered) ports inside 
    > nat? or w2k assigns different id numbers for different ether interfaces?
    
    Yes there is, but not by using SYN scanning because there will always be a
    reply to the SYN (either SYN/ACK or RST).
    Try sending FIN's istead of SYN's to the host. If the port is closed the id
    should increment by 512, and by 256 if it's open.
    
    --
    Filipe Almeida
    aka LiquidK
    
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