Hidden Ports

From: Eduardo Sorensen (ovo_at_osite.com.br)
Date: 02/03/04

  • Next message: Mr Babak Memari: "Outpost firewall Pro 2.0.238.3121(290) has Back Orifice trojan program" 
    To: security-basics@securityfocus.com
Date: Tue, 03 Feb 2004 15:46:12 -0200

    Can a port scanner not see a port that is opened?

    The question is: can a backdoor be on a machine, and with nmap -p 1-,
    for example, you couldn't see it?

    Thank you,
    Eduardo

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  • Next message: Mr Babak Memari: "Outpost firewall Pro 2.0.238.3121(290) has Back Orifice trojan program"

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