The plaintext password can then be obtained by passing the encrypted credentials to the Windows API function CryptUnprotectData, which uses the victim’s cached logon credentials as the decryption key. Web browsers typically store the credentials in an encrypted format within a credential store however, methods exist to extract plaintext credentials from web browsers.įor example, on Windows systems, encrypted credentials may be obtained from Google Chrome by reading a database file, AppData\Local\Google\Chrome\User Data\Default\Login Data and executing a SQL query: SELECT action_url, username_value, password_value FROM logins. Web browsers commonly save credentials such as website usernames and passwords so that they do not need to be entered manually in the future. Adversaries may acquire credentials from web browsers by reading files specific to the target browser.
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