We Faced a Brute Force Attack — Here’s What Saved Us!

Working on brute force incidents involves identifying, analyzing, and mitigating unauthorized access attempts. Here’s a structured approach:

Monitor Alerts: Use SIEM tools or IDS/IPS systems to detect brute force attempts, such as multiple failed login attempts from the same IP.Review Logs: Analyze authentication logs (e.g., SSH, RDP, application-specific) for patterns like rapid sequential login attempts.Identify Sources: Determine if the attempts are coming from specific IPs, regions, or user accounts.Correlate Events: Look for other suspicious activities in network and application logs to determine if the brute force is part of a larger attack.Assess Impact: Check if any accounts were successfully compromised and evaluate the potential access or data exposure.Examine Patterns: Note tools or scripts used (e.g., Hydra, Burp Suite) and assess the sophistication of the attack.Block IPs: Temporarily block the IPs or ranges involved in the attack using a firewall, IDS/IPS, or web application firewall (WAF).Enable Account Lockout: Implement policies to lock accounts after a set number of failed attempts.Segregate Networks: Isolate affected systems if necessary to prevent…