Sophisticated NPM Attack Leveraging Unicode Steganography and Google Calendar C2
Our security monitoring systems recently flagged a suspicious npm package, os-info-checker-es6, which represents a sophisticated and evolving threat within the npm ecosystem. What initially appeared as a simple OS information utility quickly unraveled into a sophisticated multi-stage malware attack. This campaign employs clever Unicode-based steganography to hide its initial malicious code and utilizes a Google Calendar event short link as a dynamic dropper for its final payload.