ExtraHop named a Leader in the 2025 Forrester Wave™: Network Analysis And Visibility Solutions

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DETECTION OVERVIEW

New LDAP Computer Query Activity

Risk Factors

Enumeration is a simple but important step taken by attackers after an initial network compromise. Attack tools make enumeration relatively easy to perform. 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.

Category

Reconnaissance
Detection diagram
Next in Reconnaissance: New LDAP GPO Query Activity

Attack Background

After infiltrating a network, an attacker might collect information about network devices for additional attacks. Submitting an LDAP query to an Active Directory (AD) server can help an attacker learn about objects (which represents an entity, such as a user or group) associated with workstations, servers, domain controllers in a specific domain. This type of enumeration might be a precursor to lateral movement, where the attacker compromises additional targets to ultimately achieve their objective.

Mitigation Options

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

MITRE ATT&CK ID

Associated content

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