Threat actors continue to use Active Directory (AD) for reconnaissance within compromised networks, leveraging legitimate AD query tools and functionalities to map out the environment and identify valuable targets. This technique, often part of the initial stages of an attack, allows attackers to discreetly gather information on user accounts, network resources, and trust relationships without deploying external tools that could trigger security alerts. The sophistication and stealthiness of using AD's inherent reconnaissance features underscore organizations' need to implement robust monitoring and anomaly detection capabilities focused on AD activities. It highlights the importance of securing the network perimeter and ensuring that internal actions are scrutinized for signs of unauthorized access or abnormal behaviors, enhancing the ability to detect and mitigate threats before they escalate.
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