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DETECTION OVERVIEW
Risk Factors
Enumeration is a simple but important step taken by attackers after an initial compromise. Attackers must have knowledge about LDAP and Active Directory objects to enumerate information with LDAP queries. Enumeration activity typically does not negatively affect network performance, but attackers can leverage this information to find new targets in an attack campaign.
The system might change the risk score for this detection.
Kill Chain
Risk Score
42
LDAP enables administrators to search for, create, or modify objects on a directory server. Legitimate LDAP queries routinely search for a specific object. Objects represent an entity such as a user, group, or workstation. After infiltrating a network, an attacker might create enumeration LDAP queries with search filters that retrieve a large amount of information about general object types. Attack tools, such as BloodHound, can also create enumeration LDAP queries. With this information, an attacker can make lists of users, groups, services, and workstations to target in future attacks.
Limit domain object privileges to reduce the information users can enumerate through scans and tools such as Bloodhound
Because securing LDAP servers can be difficult without compromising functionality, monitor and investigate unusual LDAP activity quickly to minimize potential damage
