Google announced on Tuesday it is instituting a malware warning system on its search results page to alert users to the possibility that their computer is infected. The internet giant said it took the action after discovering unusual patterns of activity on the web that it identified as a strain of malware that causes infected computers to send traffic to Google through proxy servers.
"Recently, we found some unusual search traffic while performing routine maintenance on one of our data centers," Damian Menscher, a Google security engineer, said in a blog post. "After collaborating with security engineers at several companies that were sending this modified traffic, we determined that the computers exhibiting this behavior were infected with a particular strain of malicious software, or 'malware'."
Google said that as a result of its discovery, some users who come to Google through these specific intermediary servers will see a prominent notification at the top of their web search results warning them of a possible infection.
For more on this story, read Google adds malware warning to search results on CNET News.