I have been seeing this alert “ET P2P Torrent Client User-Agent (Solid Core/0.82)” on networks for sometime now and was able to narrow it down to being related to Adobe Flash (Firefox and Chrome). I am not sure why Adobe is using a torrent client in its flash but this seems to be the source.
This is also triggered not only by updating the software, but from the web installer when it connects out.
I later confirmed this myself with the assistance of another who updated their flash and triggered this alert.
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