Information-stealing malware, or infostealers, attack systems by extracting sensitive data such as browser passwords, often transmitting this data to cybercriminal servers. Understanding the technical procedures used by these malware, including password decryption and exfiltration, highlights the importance of strong security practices. #Infostealers #ChromePasswordExtraction
Keypoints
- Infostealers target stored passwords in browsers like Google Chrome to gather sensitive information.
- The malware uses functions like timestamp conversion, encryption key retrieval, and password decryption to extract credentials.
- Encrypted master keys are stored in Chrome’s “Local State” file and decrypted with AES-GCM encryption techniques.
- The exfiltration process involves copying databases, querying credentials, and sending data via POST requests to attacker-controlled servers.
- A dedicated server handles the collection of stolen credentials, logging and organizing data for potential misuse.