Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This detection identifies when a user is granted the Administrator role on an ESXi host. Assigning elevated privileges is a critical action that can indicate potential malicious behavior if performed unexpectedly. Adversaries who gain access may use this to escalate privileges, maintain persistence, or disable security controls.
This detection identifies when Lockdown Mode is disabled on an ESXi host, which can indicate that a threat actor is attempting to weaken host security controls. Disabling Lockdown Mode allows broader remote access via SSH or the host client and may precede further malicious actions such as data exfiltration, lateral movement, or VM tampering.
Detects a sequence of events indicative of a new device being registered using a refresh token, a TTP associated with the ROADtools framework following an OAuth phishing attack. This sequence involves the Device Registration Service adding a device with a specific hardcoded OS version, followed by user and owner assignments, all within a short timeframe and sharing the same correlation ID.
Detects potential Active Directory enumeration via LDAP. This rule identifies suspicious LDAP search filters and distinguished name enumerations that are commonly used by reconnaissance tools like PowerView and SharpHound to gather information about users, groups, computers, and domain trusts within an Active Directory environment. The rule specifically looks for various 'groupType', 'sAMAccountType', 'objectCategory', 'objectClass', 'primaryGroupID', 'userAccountControl' attributes, and specific distinguished names or flags that indicate detailed AD reconnaissance.
This query helps calculate overall efficacy of MDO based on threats blocked pre-delivery, post-delivery cleanups, or were uncaught.
Detects when a Global Administrator elevates access to all subscriptions and management groups in a tenant. When a Global Administrator elevates access they are assigned the User Access Administrator role at root scope. This Sentinel analytics rule monitors who has elevated access in your tenant so that admins can take appropriate action.
This detection identifies when Microsoft Copilot Studio agents are created in your organization's tenant. This activity is significant as the default behavior in Copilot agent creation is to configure a new service principal with cloud app administrator role.
Copilot agents can be found in the Microsoft Admin Portal https://admin.microsoft.com/Adminportal/Home#/copilot/agents
Copilot agents can be found in the Microsoft Admin Portal https://admin.microsoft.com/Adminportal/Home#/copilot/agents
This detection rule identifies when Microsoft Copilot Studio agent properties are modified in your organization's tenant. This activity is significant as the default behavior in Copilot agent creation is to configure a new service principal with cloud app administrator role.
Copilot agents can be found in the Microsoft Admin Portal https://admin.microsoft.com/Adminportal/Home#/copilot/agents
Copilot agents can be found in the Microsoft Admin Portal https://admin.microsoft.com/Adminportal/Home#/copilot/agents
Analyze Mail Bomb Attack by ISP
Detects the use of known malicious PowerShell commandlets often associated with exploitation frameworks, red-teaming tools, and malware. This rule identifies a wide range of offensive PowerShell functions used for reconnaissance, credential dumping, privilege escalation, persistence, and data exfiltration.
KQL Query from file: Threat Hunting AzureHound Usage
KQL Query
KQL Query from file: Detect Microsoft Graph API Abuse
KQL Query from file: Monitoring Cross-Tenant Abuse by Threat Actors
KQL Query from file: Monitor Privilege User SSPR
KQL Query
KQL Query
KQL Query from file: Microsoft Entra Identity Attack Threat Detection
KQL Query
KQL Query from file: Sentinel UEBA Privilege Escalation Detection
KQL Query from file: DefenderXDR LDAP Enumeration Detection
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