Alot of spam clicks coming from searchads.msn.net.
It is spam clicks from contextual ads placed on msn.com.
I didn't sign up for contextual, I only want legit search users.
We have the same problem, clicks coming from currated msn content pages are always spam/bot clicks. They have never brought any business whatsoever and yet it is not possible to opt out of this form of ads.
It would be greatly appreciated if Microsoft would make this kind of advertising optional, or have the possibility to opt out of it, because right now it feels just like Microsoft is stealing money from us as these clicks are point and useless traffic which are always bots or spam and will never result in any meaningful business transaction.
The only way currently to get right of these click is to look for the search term they used to place the ads on msn.com. Like in the original example it's "Best Antivirus Software 2017" you can then in your campaigns exclude this exact keyword [Best Antivirus Software 2017] this will also hurt your normal search traffic but depening on how much volume you are getting is necessary in order to protect your budget/money.