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Large unexplained upload

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Jethro Bodine:
I noticed over 1GB upload from my machine on a day last week.

Does anyone know how I can trace the source ( after the fact as it were ) ?

I only know how I could have traced it while it was happening , and I didn't
notice it at the time it was going on .

My wireless network is well secured and my machine is the only device on it.
I have all Windows telemetry disabled so I don't think that was the cause .

Still_Game:
Are you running Windows 10? One of the "benefits" of this  OS is that, presumably to lighten the load on Microsoft's servers, the default installation allows it to act as a file server to provide assistance in updating other computers around the world. Sneaky or what!

http://www.pcworld.com/article/2955491/windows/how-to-stop-windows-10-from-using-your-pcs-bandwidth-to-update-strangers-systems.html

Jethro Bodine:
I'm wise to that sneaky behavior but no , I'm not on W10 ( and never will be ... Win telemetry being disabled )
I've also refused all of the well known poison  GWX updates

This happened on a W7 home premium 64-bit machine.
I know that many apps have "phone home" activity but nothing on this scale .

I'm also very security aware , keep things locked-down tight and run regular scans.
I'm running MBAM again as I write this but not expecting to find anything.

I don't use P2P or any torrent stuff .

I'm hoping that someone can point me to a log file that I can look at .

Still_Game:
Sorry then, I don't have any other suggestions at the moment but I hope someone more experienced will be able to help. I keep W10 at bay with the aid of the wonderful GWX Control Panel - so far, so good!

Jethro Bodine:

Yes , I also have GWX control panel ..... " Belt and braces "    :smiley:

For now , I can only watch and wait , and hope to catch it if it happens again .
I have a couple of possible culprits in mind but it seems unfair to name them here without proof.

Thanks for the suggestions anyway .

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