Remember back in September we reported about Chinese-like .CN TLDs spamming the heck out of Google's search results? Well, it appears that a study was done by Sunbelt Software that showed "27 different domains, each with up to 1,499 [malicious] pages" found in Google for hundreds of legitimate search queries. It appears that the .CN (which were really not .CN TLDs but masked as such) are directly related to this report.
Subverted search sites lead to massive malware attack in progress is the article that most people are pointing to. I covered it yesterday at Search Engine Land placing blame on Google's Malware Filter not working properly. But it has history, as I showed above.
Here is our picture from September:
Here is a picture from News.com from yesterday with those malware results:
Look similar? Yea.
Do I know for sure the two are related. No, but they seem to be. Only Google can confirm the two are directly related.