Unlock Advanced Threat Hunting with Microsoft Defender for Endpoint’s Aggregated Reporting

By /

Listen to this Post

Featured Image

Introduction:

Microsoft Defender for Endpoint (MDE) has introduced Aggregated Reporting, a powerful feature designed to enhance visibility into raw endpoint events. With over 10,000 customers already leveraging this capability, it’s a game-changer for efficient threat hunting and security telemetry. This article dives into how to enable and maximize this feature for proactive cybersecurity.

Learning Objectives:

  • Understand the benefits of Aggregated Reporting in MDE.
  • Learn how to enable and configure the feature for optimal visibility.
  • Discover advanced threat-hunting techniques using aggregated data.
  1. Enabling Aggregated Reporting in Microsoft Defender for Endpoint

Command (PowerShell – Admin):

Set-MpPreference -AttackSurfaceReductionRulesReporting Enable

Step-by-Step Guide:

1. Open PowerShell as Administrator.

  1. Run the above command to enable reporting for Attack Surface Reduction (ASR) rules.
  2. Navigate to the Microsoft Defender Security Center (security.microsoft.com) to verify the setting under Settings > Advanced Features > Aggregated Reporting.

4. Toggle “Enable Aggregated Reporting” to On.

This command ensures MDE collects and consolidates endpoint event data, improving detection accuracy and reducing noise.

2. Querying Aggregated Data via Advanced Hunting

KQL Query Example:

DeviceEvents
| where ActionType == "AsrTriggered"
| summarize TotalTriggers = count() by DeviceName, RuleName

Step-by-Step Guide:

  1. Log in to the Microsoft Defender Security Center.
  2. Go to Advanced Hunting under the Threat Hunting tab.
  3. Paste the KQL query above to identify devices triggering ASR rules.
  4. Analyze results to pinpoint suspicious activity or false positives.

This query helps security teams prioritize investigations by highlighting frequently triggered rules.

3. Exporting Aggregated Reports for SIEM Integration

PowerShell Command:

Get-MpThreatDetection -AggregateReport -OutFile "C:\Reports\MDE_Aggregated_Report.csv"

Step-by-Step Guide:

  1. Run the command in an elevated PowerShell session.
  2. Specify the output path for the CSV report.
  3. Import the file into your SIEM (e.g., Splunk, Sentinel) for long-term analysis.
  4. Schedule this script to run daily for continuous monitoring.

4. Hardening Cloud Workloads with Aggregated Telemetry

Azure CLI Command:

az security setting update --name WDATP --resource-group MyResourceGroup --enabled true

Step-by-Step Guide:

  1. Install the Azure CLI and authenticate (az login).
  2. Run the command to enable Defender for Cloud integration with MDE.
  3. Verify in the Azure Portal under Security Center > Environment Settings.

This ensures cloud-hosted endpoints contribute to aggregated reports.

5. Mitigating False Positives in Aggregated Data

PowerShell Command:

Add-MpPreference -AttackSurfaceReductionOnlyExclusions "C:\LegacyApp\bin\"

Step-by-Step Guide:

1. Identify noisy applications triggering excessive alerts.

  1. Add their paths to the exclusion list using the command above.

3. Monitor the Reporting dashboard for reduced noise.

What Undercode Say:

  • Key Takeaway 1: Aggregated Reporting transforms raw telemetry into actionable insights, reducing mean time to detect (MTTD).
  • Key Takeaway 2: Integration with SIEMs and cloud workloads extends visibility across hybrid environments.

Analysis:

With ransomware and fileless attacks on the rise, MDE’s Aggregated Reporting provides a critical advantage. By centralizing endpoint data, teams can spot trends faster—like a surge in ASR triggers indicating a zero-day exploit. However, proper tuning is essential to avoid alert fatigue. Microsoft’s focus on scalable telemetry suggests future AI-driven auto-remediation features could be next.

Prediction:

Within two years, expect Aggregated Reporting to evolve into a fully autonomous threat-hunting module, leveraging AI to correlate cross-platform data and suggest mitigations in real time.

For deeper insights, watch Saar Cohen’s demo [here](youtube.com).

IT/Security Reporter URL:

Reported By: Activity 7350792316162383872 – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

🔐JOIN OUR CYBER WORLD [ CVE News • HackMonitor • UndercodeNews ]

💬 Whatsapp | 💬 Telegram

📢 Follow UndercodeTesting & Stay Tuned:

𝕏 formerly Twitter 🐦 | @ Threads | 🔗 Linkedin

Related Posts: