Browser Credential File Access by Non-Browser Process (T1555.003)

Ankit Mehta@Secvyn

•updated Jun 29, 2026•0•0•1

Detects instances where non-browser processes (that are not signed by major browser vendors) attempt to access common browser credential files such as 'Login Data' or 'logins.json'. This behavior is characteristic of credential dumping or exfiltration attempts by malicious software trying to steal stored browser passwords.