Help needed locating what process is using a port

[seanthorp]

Hi there,

I've got some unusual UDP traffic going to a port on my system and I'd like to know what is responsible for it. Unfortunately the tools I previously used to do this type of thing don't appear to work in Windows 7.

Does anybody know how I can get the PID for the process that is receiving UDP traffic at a certain port on my system?

Any help would be greatly appreciated because it's driving me nuts. Thanks in advance.

Best Regards

Seán

 

[chev65]

Wireshark should enable you to track down where that traffic is coming from.
Wireshark Go deep.

 

[seanthorp]

Hi,

Thanks for the reply. I do have Wireshark running, in fact that's actually what alerted me to the traffic. I don't know of a way to get it to reveal the PID of the process that's doing the listening though. I've had a look through the help manual and I don't see anything of relevance. Do you have any idea of how I might use it to do what I need?

Cheers

Seán

 

[chev65]

I really havn't had the need to work with Wireshark very much so I can't say for sure. You might try looking in TaskManager for any strange running processes then right click and have it open the file to see where it is.

 

[Etihtsarom]

Nirfsoft has CurrPorts that will give you what you seek.

 

[seanthorp]

Hey thanks for that Etihtsarom, CurrPorts is exactly the kind of tool I was looking for. Curiously though since posting on this forum the traffic appears to have ceased and it had been going on for a couple of days at least. Spooky...

Anyhow thanks to you both for your assistance, much appreciated.

Best Regards

Seán

 

[Etihtsarom]

Welcome!