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Thread: Port 554 sometimes open

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  1. #1
    Join Date
    May 2004
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    Como-Italy
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    81

    Default Port 554 sometimes open

    Checking with GRC Gibson research, sometimes I find Port 554 open: probing again only this port I find it Stealth.
    What does it mean ? Is there a specific program using this Port ?
    Thank You in advance

    Versione ZoneAlarm Extreme Security:11.0.000.020
    versione vsmon:11.0.000.020
    Versione driver:11.0.000.009
    Versione motore antivirus:8.3.0.13
    Versione file DAT delle firme antivirus:1100707136
    Versione antispam:6.3.1.4973
    ZoneAlarm Browser Security: 1.5.393.18
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  2. #2
    Join Date
    Jun 2006
    Location
    The 3rd Coast - South Central Texas
    Posts
    10,466

    Default Re: Port 554 sometimes open

    Quote Originally Posted by radetzky View Post
    Checking with GRC Gibson research, sometimes I find Port 554 open: probing again only this port I find it Stealth.
    What does it mean ? Is there a specific program using this Port ?
    Thank You in advance

    Versione ZoneAlarm Extreme Security:11.0.000.020
    versione vsmon:11.0.000.020
    Versione driver:11.0.000.009
    Versione motore antivirus:8.3.0.13
    Versione file DAT delle firme antivirus:1100707136
    Versione antispam:6.3.1.4973
    ZoneAlarm Browser Security: 1.5.393.18
    Rilevatore spyware di ZoneAlarm ForceField:1.2.104.0
    WIN 7Pro/64 -Firefox 16 & IE9

    Hello;

    Port 554 open per scan on GRC - How can I close or stealth this port?

    if you connect to the internet via a hardware firewall [Router] you could be testing the hardware f/w [Router] and not the PC's OS.

    port 554 has to do with real time streaming protocol,
    used to control media streaming, music, or video.
    so i'd suspect that there is an app you have installed that is related to streaming as either a server or client, or an apps installed for a Smartphone phone or Weather App may be responsible.

    ZoneAlarm doesn't open or close ports, the app does
    . this wiki page gives a techie description and lists a number of client and server apps near the bottom. one of those, if installed, may be running as a service and keeping the ports open or showing closed.

    many apps use upnp commands to open/close ports in hardware firewall transparently to the user.

    the ultimate solution may be to uninstall any offending app or disable it when you are not actively using it.
    It is Sometimes very Difficult to Diagnose and fix a Computer from halfway across the Country, or around the World,
    without All the Details about your computer it's Software and that you failed to provide, without our ability to sit in front of your Computer monitor and see what's going on..

    The More information you post the more likely users here will be able to understand the issue and try to help.
    Last edited by GeorgeV; December 28th, 2012 at 09:16 AM.
    GeorgeV
    ZoneAlarm® Extreme Security


    Click here for ZA Support
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  3. #3
    Join Date
    Aug 2009
    Location
    Texas Gulf Coast
    Posts
    1,648

    Default Re: Port 554 sometimes open

    Quote Originally Posted by radetzky View Post
    Is there a specific program using this Port ?
    Thank You in advance
    Just a suggestion.

    Do you have any multimedia programs open or running that need to open port 554(Real time stream control protocol).

    You could download Sysinternals TCPView and run it.Should show processes that is using that port.

    Have a nice Day

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