Query about monitoring unknown Internet traffic

[Bret Busby]

Hello.

Last night, this computer, running UbuntuMate 1504, started sending
and receiving unknown data to and from the Internet.

I do not know whether the system has some unknown spyware, or has been breached.

Is a utility available for Ubuntu, that will show what application(s)
is/are involved on the system, in the unsolicited data transmission.

At present, all that I can do, to regulate the data transmission, is
to pull the (Internet connection) plug on the system.

In the course of my writing this message, the system has apparently
been downloading at about 200kb/s and uploading at about 20kb/s, and I
have no idea as to what it is doing, and, it is scary.

Thank you in anticipation.

-- 
Bret Busby
Armadale
West Australia
..............

"So once you do know what the question actually is,
 you'll know what the answer means."
- Deep Thought,
 Chapter 28 of Book 1 of
 "The Hitchhiker's Guide to the Galaxy:
 A Trilogy In Four Parts",
 written by Douglas Adams,
 published by Pan Books, 1992

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