China’s National Internet Emergency Response Center (CNCERT) warned that DNS
configuration tampering on household routers has caused abnormal redirects.
CNCERT said recently some home users connecting to router Wi‑Fi who visit
legitimate sites or trigger terminal connectivity checks are being redirected to
pornographic, gambling and other illegal pages. The center attributes the
incidents to altered DNS server settings on routers, which can cause connected
phones and PCs to receive malicious DNS addresses that misresolve legitimate
domains and expose users to aggressive ad pushes, phishing and account-data
theft risks.
