Kim-Heard1/windows-authentication-log-analysis

GitHub: Kim-Heard1/windows-authentication-log-analysis

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# Windows Authentication Log Analysis ## Overview This project demonstrates basic security monitoring and log analysis using system event logs. ## Objective To identify and analyze successful and failed login attempts using system security logs. ## Tools Used - Windows Event Viewer ## Incident Scenario A user generated multiple failed login attempts followed by a successful login to simulate suspicious authentication behavior. Security logs were analyzed to identify the events and review authentication details. ## What I Did - Accessed and navigated system security logs - Identified login-related events (Event ID 4624 and 4625) - Simulated failed login attempts - Analyzed event details such as timestamps, user accounts, and logon types ## Security Findings - Identified multiple failed login attempts (Event ID 4625) - Confirmed successful authentication events (Event ID 4624) - Observed how Windows records authentication activity in security logs - Demonstrated basic log analysis and event investigation workflow ## Screenshots ![Security Logs](https://static.pigsec.cn/wp-content/uploads/repos/2026/05/e6926fdb0f124314.png) ![Failed Login Attempt](https://static.pigsec.cn/wp-content/uploads/repos/2026/05/3c3e9746c2124315.png) ![Successful Login](https://static.pigsec.cn/wp-content/uploads/repos/2026/05/b87c0d38de124316.png) ![Event Details](https://static.pigsec.cn/wp-content/uploads/repos/2026/05/e942db945f124317.png) ## Skills Demonstrated - Log analysis - Security monitoring - Threat detection basics - Troubleshooting ## Key Takeaways This project helped me understand how security events are logged and how analysts can detect suspicious activity through log monitoring.