Dominion I'm no Windows guru, but those processes all seem to have something to do with your antivirus software.
luceos Assuming flarum is a local dev environment with WAMP or whatever, that will probably also be accounted as network activity. And what Dominion said ofcourse, but no idea those "Image" names are very obscure.
Dominion I beg your pardon, the first two weren't AV-related after all (that was just a guess): SwiApiMux.exe: Sierra Wireless API MUX Watcher.exe: also from Sierra Wireless vprot.exe: part of AVG Toolbar loggingserver.exe: part of AVG Secure Search In any case, as @luceos said, it looks like your system noticed a new host and is reacting.
JoshyPHP That activity is not from Flarum, it's trying to connect to Flarum. If you left your browser open I assume it's trying to get updates from Flarum.