Vidar Infostealer Browser Credential Store Access by Non-Browser Process

Ibrahim Saud@tektrix

•updated Jun 24, 2026•0•0•4

Detects unauthorized access to browser-based credential stores (such as Cookies and Login Data for Chrome, Edge, and Firefox) by non-browser processes. This behavior is a common indicator of credential harvesting by infostealer malware, such as Vidar, attempting to exfiltrate session cookies and stored credentials.