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DETECTION OVERVIEW
Risk Factors
A successful WMI query requires local or domain administrator privileges, making this enumeration technique less common when compared to other techniques. Enumeration activity typically does not negatively affect network performance, but attackers can leverage this information to advance an attack campaign.
The system might change the risk score for this detection.
Kill Chain
$source sent enumeration queries through Windows Management Instrumentation (WMI). This is the first time in several weeks ExtraHop observed this activity. This type of query is designed to retrieve data about a remote device, such as disk space, hardware, and processes. Check if system data was transferred to unauthorized users.
Windows Management Instrumentation (WMI) is installed by default on Windows operating systems and enables administrators to remotely access services and collect management data from devices. An administrator can submit a query through WMI to retrieve WMI object data from remote devices. A WMI query shares a similar structure to SQL queries (where data is stored in tables with a row-column structure). An attacker with administrator privileges can submit a query to collect detailed system information about a target. For example, the WMI query SELECT * FROM AntiVirusProduct can identify antivirus software running on the target.
Block access to WMI or restrict access to authorized IP addresses in Windows firewall settings
Limit the number of administrator accounts that have WMI privileges
Separate credentials for administrators by the type of remote activity
Restrict access to specific WMI namespaces to only relative administrative user accounts
WMI is a Microsoft-specific implementation of the Web-Based Enterprise Management (WBEM) standard. WMI allows you to gather information about and control various components of a Windows system.
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