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Azure Event Hub Authorization Rule Created or Updated
Identifies when an Event Hub Authorization Rule is created or updated in Azure. An authorization rule is associated with specific rights, and carries a pair of cryptographic keys. When you create an Event Hubs namespace, a policy rule named RootManageSharedAccessKey is created for the namespace. This has manage permissions for the entire namespace and it's recommended that you treat this rule like an administrative root account and don't use it in your application.
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Identifies an Event Hub deletion in Azure. An Event Hub is an event processing service that ingests and processes large volumes of events and data. An adversary may delete an Event Hub in an attempt to evade detection.
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Azure OpenAI Insecure Output Handling
Sep 19, 2026 · Domain: LLM Data Source: Azure OpenAI Data Source: Azure Event Hubs Use Case: Insecure Output Handling Resources: Investigation Guide Noise: Low Performance: Fast Threat: Unauthorized AI Usage Threat: LLMjacking Rule Type: ES|QL Platform: Azure Domain: Cloud Domain: GenAI Service: Azure OpenAI Service: Azure Event Hubs ·Detects when Azure OpenAI requests result in zero response length, potentially indicating issues in output handling that might lead to security exploits such as data leaks or code execution. This can occur in cases where the API fails to handle outputs correctly under certain input conditions.
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Potential Azure OpenAI Model Theft
Sep 19, 2026 · Domain: LLM Data Source: Azure OpenAI Data Source: Azure Event Hubs Use Case: Model Theft Mitre Atlas: T0044 Resources: Investigation Guide Noise: Low Performance: Fast Profile: Recommended Threat: Unauthorized AI Usage Threat: LLMjacking Rule Type: ES|QL Platform: Azure Domain: Cloud Domain: GenAI Service: Azure OpenAI Service: Azure Event Hubs ·Monitors for suspicious activities that may indicate theft or unauthorized duplication of machine learning (ML) models, such as unauthorized API calls, atypical access patterns, or large data transfers that are unusual during model interactions.
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Potential Denial of Azure OpenAI ML Service
Sep 19, 2026 · Domain: LLM Data Source: Azure OpenAI Data Source: Azure Event Hubs Use Case: Denial of Service Mitre Atlas: T0029 Resources: Investigation Guide Noise: Low Performance: Fast Profile: Recommended Threat: Unauthorized AI Usage Rule Type: ES|QL Platform: Azure Domain: Cloud Domain: GenAI Service: Azure OpenAI Service: Azure Event Hubs ·Detects patterns indicative of Denial-of-Service (DoS) attacks on machine learning (ML) models, focusing on unusually high volume and frequency of requests or patterns of requests that are known to cause performance degradation or service disruption, such as large input sizes or rapid API calls.
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