If it is about the money for Google, can't they at least put a warning over the ad that says "Are you really sure you want to download [Some Malware]?" if you h

If it is about the money for Google, can't they at least put a warning over the ad that says "Are you really sure you want to download [Some Malware]?" if you hover/click on the ad. Nevermind, the right thing to do would be to ban these kinds of ads outright, but we can't count on them to do that now, can we?