Trend Micro blocking Metamask extension on chrome

When I open chrome browser to the default google webpage, I get a block from trend micro antivirus+ saying its a phishing site (http://metamask.github.io/phishin-warning/v3.0.0/service-worker.js) I suspect it's the metamask extension as it only comes up with users with the extension. It happens on a different computer too. Is it a false positive?