China-Aligned Hackers Hijack Sogou Input Method DNS Requests to Deploy DarkVigil Backdoor

A China-aligned threat actor known as SlippyNunchucks has been attributed to a Domain Name System (DNS) hijacking operation abusing insecure HTTP communications in Windows versions of Sogou Input Method as part of a surveillance campaign designed to deploy an implant called DarkVigil (aka FDMTP).

The campaign, observed starting July 1, 2026, is assessed to have targeted organizations and