Fake Windows update installs hidden malware

This material may not be published, broadcast, rewritten, or redistributed. ©2026 FOX News Network, LLC. All rights reserved. Quotes displayed in real-time or delayed by at least 15 minutes. Market data provided by Factset. Powered and implemented by FactSet Digital Solutions. Legal Statement. Mutual Fund and ETF data provided by LSEG. Fox News Flash top headlines are here. Check out what's clicking on FoxNews.com. If you've ever clicked "Check for updates" and trusted what you saw, you're not alone. That's exactly what this latest scam is counting on. The page mimics official branding, includes a believable knowledge base number and presents a big blue download button that feels familiar. The catch? The download installs malware designed to steal passwords, payment details and account access. According to researchers at Malwarebytes Labs, a cybersecurity research and threat intelligence team inside Malwarebytes, the site uses a typosquatted domain that looks close enough to a real Microsoft URL to fool a quick glance. That small trick is often all it takes. Cybersecurity researchers warn a fake Microsoft update site uses a look-alike URL and a familiar download button to deliver d