---
title: Microsoft Entra ID sign in from AzureHound default user agent
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > OOTB Rules > Microsoft Entra ID sign in from
  AzureHound default user agent
---

> For the complete documentation index, see [llms.txt](https://docs.datadoghq.com/llms.txt).

# Microsoft Entra ID sign in from AzureHound default user agent
Classification:attackTactic:[TA0007-discovery](https://attack.mitre.org/tactics/TA0007)Technique:[T1069-permission-groups-discovery](https://attack.mitre.org/techniques/T1069) 
## Goal{% #goal %}

Detect when the [AzureHound](https://bloodhound.readthedocs.io/en/latest/data-collection/azurehound.html) default user agent is seen in Microsoft Entra ID sign-in logs.

## Strategy{% #strategy %}

This rule monitors Microsoft Entra ID sign-in logs for the default user agent `AzureHound` (this default user agent can be altered). AzureHound is a data collector for Bloodhound. Bloodhound is an Active Directory (AD) reconnaissance tool that can reveal hidden relationships and identify attack paths within an AD environment. It is listed in MITRE ATT&CK with id [S0521](https://attack.mitre.org/software/S0521/) and has been associated with a number of threat groups.

## Triage and response{% #triage-and-response %}

1. Determine if your organization has authorized the use of Bloodhound.
1. If the results of triage indicate that this tool is not used by your organization, begin your company's incident response process and an investigation.
   - If appropriate, disable the affected identity and revoke any sign-in sessions.
   - Investigate any actions taken by the identity `{{@usr.id}}` during the identified time frame.