Microsoft Defender ATP is Detecting Yesterday’s Chrome Update as a Backdoor

Microsoft Defender Advanced Threat Protection (ATP), the commercial version of the ubiquitous Defender antivirus and Microsoft’s top enterprise security solution, is currently having a bad day and labeling yesterday’s Google Chrome browser update as a backdoor trojan. From a report: The detections are for Google Chrome 88.0.4324.146, the latest version of the Chrome browser, which Google released last night. As per the screenshot (embedded in the linked story), but also based on reports shared on Twitter by other dismayed system administrators, Defender ATP is currently detecting multiple files part of the Chrome v88.0.4324.146 update package as containing a generic backdoor trojan named “PHP/Funvalget.A.” The alerts have caused quite a stir in enterprise environments in light of recent multiple software supply chain attacks that have hit companies across the world over the past few months. System administrators are currently awaiting a formal statement from Microsoft to confirm that the detection is a “false possitive” and not an actual threat.