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Microsoft has announced the full integration of Microsoft Sentinel, its advanced SIEM (Security Information and Event Management) solution, into the Microsoft Defender portal. This unified experience brings together SIEM, XDR (Extended Detection and Response), XSPM (Extended Security Posture Management), Cloud Security, Threat Intelligence, and Security Copilot into a single platform.
Key features of this integration include:
- Multi-tenant and multi-workspace support – Security teams can now manage incidents across multiple tenants from a unified queue.
- Enhanced threat investigation – Seamless collaboration for large enterprises and partners.
- Streamlined workflows – Improved operational efficiency and faster incident response.
Thousands of organizations have already adopted this unified SecOps experience to strengthen their security posture.
🔗 Learn more: Microsoft Sentinel Integration
You Should Know:
1. Key Microsoft Sentinel Commands & Queries
Microsoft Sentinel uses Kusto Query Language (KQL) for log analysis. Here are some essential queries:
Basic Log Search
SecurityEvent | where EventID == 4625 // Failed logins | summarize count() by Account
Detect Brute Force Attacks
SecurityEvent | where EventID == 4625 | summarize FailedAttempts = count() by Account, bin(TimeGenerated, 1h) | where FailedAttempts > 5
Hunting for Suspicious Processes
DeviceProcessEvents
| where FileName in~ ("powershell.exe", "cmd.exe")
| where InitiatingProcessFileName != "explorer.exe"
2. Defender for Endpoint Commands
For Windows systems integrated with Defender:
Check Defender Status
Get-MpComputerStatus
Scan for Malware
Start-MpScan -ScanType FullScan
Export Threat Logs
Get-MpThreatDetection | Export-Csv -Path "C:\threat_logs.csv"
3. Linux Security Monitoring
For Linux-based SIEM logging:
Check Audit Logs (Linux)
sudo ausearch -m USER_LOGIN --success no
Monitor SSH Failed Attempts
sudo grep "Failed password" /var/log/auth.log
Check Open Ports
sudo netstat -tulnp
What Undercode Say:
The integration of Microsoft Sentinel into Defender marks a significant shift in centralized SecOps management. Organizations should leverage KQL for advanced threat hunting and automate responses using Sentinel Playbooks. Additionally, combining Defender’s real-time protection with Sentinel’s analytics enhances detection of sophisticated attacks.
For optimal security:
- Enable multi-factor authentication (MFA) across tenants.
- Use Sentinel’s built-in threat intelligence feeds.
- Automate incident response with Logic Apps.
Prediction:
As cloud environments grow, expect deeper AI-driven integrations between SIEM and XDR, with Security Copilot enabling faster threat resolution through natural language processing.
Expected Output:
- Unified SIEM & XDR dashboard in Microsoft Defender.
- Enhanced KQL queries for threat detection.
- Improved cross-tenant security collaboration.
References:
Reported By: Markolauren Today – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
