MC1019307 – Microsoft Defender XDR services: New LDAP query events added to the IdentityQueryEvents table in Advanced Hunting

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check before: 2025-03-01

Product:

Defender, Defender XDR

Platform:

Online, US Instances, World tenant

Status:

Change type:

Feature update, Admin impact

Links:

Details:

Summary:
New LDAP query events will be added to the IdentityQueryEvents table in Advanced Hunting in March 2025, potentially increasing activity and alerts. Review and adjust custom detections as needed. More information is available [here](https://learn.microsoft.com/defender-xdr/custom-detection-rules).

Details:
New LDAP query events will be added to the IdentityQueryEvents table in Advanced Hunting to provide more visibility into additional LDAP search queries running in the customer environment.
[When this will happen:]
General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out in early March 2025 and expect to complete by mid-March 2025.

Change Category:
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Scope:
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Release Phase:

Created:
2025-02-28

updated:
2025-02-28

Task Type

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Docu to Check

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MS How does it affect me

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MS Preperations

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MS Urgency

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summary for non-techies**

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Direct effects for Operations**

Increased Alert Volume
The addition of new LDAP query events may lead to a significant increase in alerts, potentially overwhelming the security operations team and causing delays in response times to genuine threats.
   - roles: Security Analyst, IT Administrator
   - references: https://learn.microsoft.com/defender-xdr/custom-detection-rules

Need for Custom Detection Review
Existing custom detections may not align with the new LDAP query events, leading to missed alerts or false positives if not reviewed and adjusted accordingly.
   - roles: Security Analyst, Compliance Officer
   - references: https://learn.microsoft.com/defender-xdr/custom-detection-rules

Configutation Options**

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IT Security**

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explanation for non-techies**

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** AI generated content. This information must be reviewed before use.

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