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Ok your welcome. I am sure you know but just to be clear: somebody may have remote access to your machine and may be able to capture any kind of data from it including passwords, e-mails, account...

Those are tools to verify any unknown questionable process that might be running on your machine, be it a remote access trojan like psycho derek or other malware.
If you want help in removing it I...

There are several tools for checking a process attached to a port:
Windows netstat cmd or many with a GUI, a few below. I cant help you use them though. Good luck

TCPview
Currports
York
fport...