I was looking at a curious uptick in traffic to TCP port 6881.    What caught my eye was that it was a immediate uptick from almost nothing and it has been sustained over a couple of weeks. Also, the number of sources has risen significantly compared to the past year.  Here's what it looks like now:

Here's what it looked like over the past year.  Notice the number of sources/day, especially for the time frame above :

If anyone has any packets or ideas, please send them in!