Threats Tagged 'csp stripping'

Socket Threat Research team identified 19 malicious browser extensions (18 Chrome, 1 Edge) published in the last six months, delivering an extendable malware framework. These extensions establish WebSocket communication with command and control servers, strip Content Security Policy headers, and use XSS injection to execute malicious payloads. The primary focus is cryptocurrency wallet secret stealing and crypto draining. The threat actor employs two publishing approaches: creating malicious extensions from scratch or acquiring legitimate extensions with established user bases and weaponizing them. The most impactful case involves the 'Enable Right Click & Copy' extension, which had approximately 70,000 Chrome users and 10,000 Edge users when compromised. The campaign, tracked as 'Superior', has been active since February 2024, demonstrating sophisticated operational capabilities and persistent evolution of malicious modules targeting multiple cryptocurrency platforms, exchanges, and credential harvesting.