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DETECTION OVERVIEW

New User Session Query Attempt

Risk Factors

Enumeration is a simple but important step taken by attackers after an initial network compromise. Reconnaissance tools such as BloodHound make enumeration relatively easy to perform. Enumeration activity typically does not negatively affect the network, but attackers can leverage this information to discover new targets in an attack campaign.

The system might change the risk score for this detection.

Kill Chain

Reconnaissance

Risk Score

37

Detection diagram
Next in Reconnaissance: New WMI Enumeration Query

Attack Background

After infiltrating a network, an attacker typically looks for privileged users as their next target. To find these users, an attacker might connect to directory services or accounts to enumerate users, administrators, domains, or groups on the network. Active Directory (AD) is the directory service in a domain-based Windows environment. One approach for enumerating user sessions is to send Microsoft remote procedure call (MSRPC) queries to the Microsoft Server Service Remote Protocol (MS-SRVS) interface.

Mitigation Options

Monitor and investigate unusual activity quickly to minimize potential damage

Limit the number of users with local administrator privileges in your environment

MITRE ATT&CK ID

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