Query about monitoring unknown Internet traffic

[Colin Law]

On 17 October 2015 at 22:21, Bret Busby <bret.busby at gmail.com> wrote:
> Hello.
>
> Last night, this computer, running UbuntuMate 1504, started sending
> and receiving unknown data to and from the Internet.

If it runs for a few minutes only then it could be Ubuntu checking for
updates and, dependent on your settings, downloading them.


>
> 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.

Just in case it is not clear to all, this is only 20kBytes/second.

Colin