DumpChromeSecrets

[!IMPORTANT] This project is no longer maintained. Please use DumpBrowserSecrets instead, which supports Chrome, Edge, Brave, Firefox, Opera, Opera GX, and Vivaldi.

DumpChromeSecrets

Extract data from modern Chrome versions, including refresh tokens, cookies, saved credentials, autofill data, browsing history, and bookmarks.

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How Does It Work

This project consists of two components:

1. Executable (DumpChromeSecrets.exe) - Creates a headless Chrome process, injects the DLL via Early Bird APC injection, and receives extracted data through a named pipe.

2. DLL (DllExtractChromeSecrets.dll) - Runs inside Chrome's process context to decrypt the App-Bound encryption key using Chrome's IElevator COM interface, then extracts and decrypts data from SQLite databases.

Chrome's App-Bound Encryption (v127+)

Starting with Chrome 127, Google introduced App-Bound Encryption, which ties cookie encryption keys to the Chrome application identity. The encryption key (named "app_bound_encrypted_key") is stored in the "Local State" file, and can be decrypted by Chrome's elevation service via the IElevator COM interface.

This project bypasses this protection by injecting code into Chrome's process, allowing it to call IElevator::DecryptData with the proper application context. Another method was implemented by luci4 in the Dumping Browser Cookies: Chrome and Dumping Saved Logins: Chrome modules.

The above image was taken from: Improving the security of Chrome cookies on Windows

Data Extraction

Once the DLL is injected, it extracts the following data from Chrome:

Usage

Usage: DumpChromeSecrets.exe [options]

Options:
  /o <file>    Output JSON File (default: ChromeData.json)
  /all         Export All Entries (default: max 16 per category)
  /?           Show This Help Message

Examples:
  DumpChromeSecrets.exe                        Extract 16 Entry To ChromeData.json
  DumpChromeSecrets.exe /all                   Export All Entries
  DumpChromeSecrets.exe /o Output.json /all    Extract All To Output.json

Credits

• IElevator COM interface research from snovvcrash's gist
• luci4 for technical guidance
• SQLite amalgamation from sqlite.org

Demo