TONResolver Malware Uses TON Smart Contracts as Dead Drop Resolver for C2 Switching

A new wave of cyberattacks targeting Japan’s hospitality sector has put the global threat landscape on high alert. In late May 2026, attackers began sending phishing emails to Japanese partner companies of Booking.com, disguised as urgent guest complaints and review requests. The goal was to trick hotel staff into opening malicious files that handed remote […] The post TONResolver Malware Uses TON Smart Contracts as Dead Drop Resolver for C2 Switching appeared first on Cyber Security News.