The continuing problem of malware being advertised in Google Adwords

Google continues to have a problem with malware being advertised in Google Adwords, in this case, for the trojan Antivirus XP 2008. Examples:





An exacerbating part of the problem, of course, is that Google Adwords are massively syndicated to other sites, including heavy-hitters like CNET, all of whom may unknowingly push malware through these ads. A lot of people can get affected by this type of problem.