The Belgian traffic? Almost entirely from a single residential IP — one box that sent over 156,000 login attempts, more than the entire country of Germany. It just sat there, hammering echo "\x6F\x6B" over and over, every single second, for weeks. Relentless.

Had a funny similar thing, there's some weird person/people that randomly probe and attack a specific game's community hosted dedicated servers; and one week this specific IP address out of Virginia was just hammering one of mine, with what amounts to a specific byte sequence, then an incrementing number of the packet (until it wrapped around). Then it stopped. Weird shit.