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How to cehck which Application is running on a port

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Author Topic: How to cehck which Application is running on a port  (Read 1597 times)
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« on: June 03, 2008, 06:30:20 am »


I run the Vulnerability scanner yesterday GFILanGuard Network Security Scanner and it shows that on port 81 there is a backdoor Asylum. But I do not know how to see which application is actually using that port. I have used the TCP view but it did not show any kind of application running on port 81, at the same time when i tenet the port 81 I observed that its responding and there is some activity going on that port

I have used another tool named Advance Admin tool and it shows the information as follows:

Port              Protocol        Description                             Possible Trojan

81                   TCP           HOST2 Name Server                RemoConChubo

Can you please help me how I can be sure what is actually going on this port. I mean the exact application which is listening on this port.
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« Reply #1 on: June 03, 2008, 08:22:00 am »

Any decent firewall like sygate will tell you what app is accessing/trying to access the internet through which port.
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« Reply #2 on: June 03, 2008, 10:47:56 pm »

How about this?

Active Ports - easy to use tool for Windows NT/2000/XP that enables you to monitor all open TCP/IP and UDP ports on the local computer. Active Ports maps ports to the owning application so you can watch which process has opened which port. It also displays a local and remote IP address for each connection and allows you to terminate the owning process. Active Ports can help you to detect trojans and other malicious programs.
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