Microsoft’s legal team has worked hard to kill “malvertising” and botnets and they’ve had some great success recently:
https://gizmodo.com/heroes-of-the-day-microsofts-legal-team-for-fighting-t-5363037
The U.S. District Court of Eastern Virginia last week granted a motion that, in effect, gives Microsoft permanent ownership of 276 Web domains once used by the Waledac cybergang to send instructions to hundreds of thousands of spam-spreading PCs.
There’s still plenty of work to be done and many other botnets to kill, but this is definitely a great victory for Microsoft’s team. [USA Today]