The .networkshare is a hidden and nowhere documented folder that holds torrents that Frostwire automatically distributes without permission from the user.
The torrent in question is called "Four Eyed Monsters" and it's a 1.4 Gb film.
It also seems Frostwire checks for updates (transmitting who knows what information in the process) without giving the option to disable the feature.
I will never accept automatic updates from any app on my computer and if the app does not give me a choice I will stop using it.
The film is distributed as part of their new Frosclick endeavor.
I don't care what they do on Frostclick but they can't use my bandwidth without asking me first.