Domain Enumeration in Active Directory

While understanding domain enumeration techniques is crucial for security assessments, it's equally important to implement strong defensive measures. Here are some key strategies to protect your Active Directory environment against enumeration attempts:

• Implement the principle of least privilege for domain enumeration tools and scripts
• Use network segmentation to limit the scope of enumeration attempts
• Implement and maintain strong password policies
• Regularly audit and review Active Directory permissions and configurations
• Enable and monitor Windows Event Logs for suspicious enumeration activities
• Implement Just-In-Time (JIT) administration and Privileged Access Workstations (PAWs)
• Use Microsoft Advanced Threat Analytics (ATA) or Azure Advanced Threat Protection (ATP) for anomaly detection
• Implement LDAP channel binding and LDAP signing
• Regularly conduct security assessments and penetration tests
• Train IT staff on secure Active Directory management practices
• Implement and maintain an up-to-date incident response plan
• Use tools like Microsoft Security Compliance Toolkit to baseline and secure Active Directory settings
• Implement strict controls on DNS zone transfers and LDAP anonymous binds
• Regularly review and update Group Policy Objects (GPOs) to enforce security settings
• Implement and maintain a robust patch management process for all domain systems
• Use Active Directory Administrative Center (ADAC) for fine-grained password policies management
• Implement and maintain a comprehensive asset management system
• Regularly review and update service account permissions and passwords
• Use Microsoft Local Administrator Password Solution (LAPS) to manage local admin passwords
• Implement network access control (NAC) to restrict unauthorized devices from connecting to the domain