Lets hope they didn't actually got hit. I saw a twitter post, someone without much knowledge could just run this and hack in easily in under 2 minutes.
Since there are so many IP range, and it takes time, 1 person can't do all of them at once. So i would say this is an ongoing matter.
In fact, the vulnerability was discovered few months back, and only got widespread due to the leak. But users still got hit because they didn't update their OS.