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HighMicrosoft Sentinel analytics

GTI - Initial Access Broker Alert Detected

Triggers an incident when a GTI Relevance System Alert of type initial_access_broker is ingested. Initial Access Broker alerts indicate that a threat actor is advertising or has sold access (credentials, VPN, RDP,…

Description

Triggers an incident when a GTI Relevance System Alert of type initial_access_broker is ingested. Initial Access Broker alerts indicate that a threat actor is advertising or has sold access (credentials, VPN, RDP, admin panels, etc.) to an organisation that matches your profile. These are high-urgency signals that may indicate imminent compromise or an ongoing breach. Each unique Alert ID is grouped into a single incident.

Detection logic

Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

The rule states no platform. This is derived from the 4 ATT&CK techniques it maps to.

Log source product
googlethreatintelligencerelevancesystemalertsapi
Log source service
relevancesystemalerts_cl

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