lucy24 - 8:02 pm on May 15, 2013 (gmt 0)
I seldom pay attention to referers.
In this case I have to because it's part of the pattern-- the stuff profilers look at. Unfortunately I can only spot it after the fact. And one of those after-the-facts was from the IP range under discussion. It's a bit worrying when a range belonging to a major software company is still vulnerable to botnet infestation.
I remember the 131.107. range. I have it in notes as "other people's robot" ;)