Security researchers detected a massive blackhat SEO (search engine optimization) campaign consisting of over 200,000 compromised web sites. The massive blackat SEO campaign has been launched by the same people who operate/or manage the campaigns for the Koobface botnet. The SANS Institute has discovered a scareware campaign targeting Mac OS X machines using an installer signed with a legitimate Apple developer certificate. Researchers identified 60 apps on Google Play infected with AdultSwine malware that in some cases displayed graphic adult-themed ads on apps intended for children.
Source: https://threatpost.com/seo-scareware-campaign-compromises-200k-websites-111709/73121/