Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects attempts to add users to highly privileged groups on Windows systems. It specifically looks for command-line executions of 'net localgroup <groupname> /add' or 'Add-LocalGroupMember -Group <groupname>' where the group name is either 'Group Policy Creator Owners' or 'Schema Admins'. These groups are considered highly privileged, and unauthorized additions could indicate privilege escalation or persistence.
Detects the addition of users to the local 'Remote Desktop Users' group using either the 'net localgroup' command or the 'Add-LocalGroupMember' PowerShell cmdlet. This activity can indicate an adversary attempting to establish persistence or facilitate lateral movement via Remote Desktop Protocol.
This rule detects when a user is added to the local Administrators group on a Windows system. It specifically looks for command-line executions of 'net.exe' with 'localgroup <groupname> /add' or 'powershell.exe' with 'Add-LocalGroupMember -Group <groupname>', where the group name contains 'administrators' or 'administrateur'. This activity is often associated with privilege escalation or persistence techniques by adversaries.
Detects potential remote code execution associated with the exploitation of Oracle E-Business Suite vulnerability CVE-2025-61882 on Windows hosts. The rule looks for a Java process spawning a command shell to execute reconnaissance commands, followed by an outbound network connection from the same Java process within a short time frame. This behavior is consistent with post-exploitation activity observed in the campaign.
Detects suspicious command-line activity spawned by the GoAnywhere MFT Tomcat service. This behavior is indicative of post-exploitation techniques observed following the exploitation of CVE-2025-10035, as detailed by Microsoft Threat Intelligence. The detection looks for specific discovery and execution commands launched via cmd.exe or powershell.exe from the GoAnywhere parent process.
Detects PowerShell commands using encoded command-line arguments to execute 'net user', 'net group', or 'net share' commands. This technique is often used by adversaries to obfuscate their actions and evade detection.
The following analytic detects the creation of a local administrator account using the "net.exe" command. It leverages Endpoint Detection and Response (EDR) data to identify processes named "net.exe" with the "/add" parameter and keywords related to administrator accounts. This activity is significant as it may indicate an attacker attempting to gain persistent access or escalate privileges. If confirmed malicious, this could lead to unauthorized access, data theft, or further system compromise. Review the process details, user context, and related artifacts to determine the legitimacy of the activity.
Detects scenarios where an attacker attempts to enumerate local or domain groups via commandline.
Detects scenarios where an attacker attempts to move laterally by mounting a network share using compromised user credentials.
Detects scenarios where an attacker attempts to create a user via commandline.
Detects scenarios where an attacker attempts to enumerate or to establish a connection to a network share.
Detects scenarios where an attacker attempts to enumerate local users via commandline.
Detects scenarios where an attacker attempts to enumerate or to establish a connection to a network share.
Detects scenarios where an attacker attempts to enumerate the password policy via commandline.
The following analytic detects the enumeration of Windows services using the net start command, which is a built-in utility that lists all running services on a system. Adversaries, system administrators, or automated tools may use this command to gain situational awareness of what services are active, identify potential security software, or discover opportunities for privilege escalation and lateral movement. The execution of net start is often associated with reconnaissance activity during the early stages of an intrusion, as attackers attempt to map out the system’s defense mechanisms and operational services. By monitoring process execution for instances of cmd.exe /c net start or similar command-line usage, defenders can detect potentially suspicious activity. Correlating this behavior with other reconnaissance commands, such as tasklist or sc query, strengthens detection fidelity. While net start is not inherently malicious, unusual or repeated use in non-administrative contexts should be flagged for further investigation.
Detects the addition of a member to a sensitive Active Directory group related to VMware administration (e.g., 'vSphere Admins', 'ESX Admins') using net.exe executed via WinRM (wsmprovhost.exe). This behavior is a key TTP used by threat groups like UNC3944 to escalate privileges and gain control over the vSphere environment after an initial compromise.
This rule detects attempts to modify the local Administrators group using the 'net localgroup administrators' command. This command is often used by adversaries to add users to the local administrators group for privilege escalation or persistence.
KQL Query from file: High-Risk assets with command line credentials
This query searches for a string pattern detected in evasive PowerShell usage. Jupyter or SolarMarker will iterate on this pattern multiple times to read data and call additional processes. This query is not fully specific to Jupyter or SolarMarker, and will also return other malicious malware, but is unlikely to return false positives.
Use this query to find reconnaissance and beaconing activities after code injection occurs.
Reconnaissance commands are consistent with the current version of Qakbot and occur automatically to exfiltrate system information. This data, once exfiltrated, will be used to prioritize human operated actions.
Reconnaissance commands are consistent with the current version of Qakbot and occur automatically to exfiltrate system information. This data, once exfiltrated, will be used to prioritize human operated actions.
The query finds attempts to list users or groups using Net commands.
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