DNSChanger is the malware that just won't die — the massive botnet was shut down last year, but it has continued to persist, with a huge number of Fortune 500 companies and federal agencies infected. The FBI is planning to shut down web access for some 360,000 computers in July, and now Google is getting involved by taking on the challenge of notifying some 500,000 users that their computers or routers are affected. A message will be displayed at the top of Google's search results page for infected users, with a link to directions to clean up the infection. Google says its using the same methodology it used last July to make about one million users aware of a different type of malware — here's hoping this round of notifications is as successful as Google says its last round of malware notifications was.