StealC Browser Credential/Cookie Store Access and Exfiltration

Ibrahim Saud@tektrix

•updated Sep 18, 2026•0•0•2

Detects unauthorized access to sensitive browser files, specifically 'Login Data' (passwords) and 'Cookies', by processes other than authorized browser binaries (Chrome or Edge). This is a common indicator of credential harvesting or session hijacking attempts by malware or malicious actors.