2025-01-31
FalconForce’s FalconHound had a logic issue when querying Azure Active Directory (AAD) users added to groups via Microsoft Sentinel. This issue has now been fixed to ensure accurate queries and detections.
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Fixing logical errors in security tools like FalconHound is crucial for accurate threat detection. Here are some essential Linux and IT commands for working with AAD, Sentinel, and cybersecurity monitoring:
Query AAD Users via PowerShell
Get-AzureADUser -All $true | Select DisplayName, UserPrincipalName, ObjectId
Checking Group Membership in AAD
Get-AzureADGroupMember -ObjectId <GroupObjectId>
Querying Logs in Sentinel kusto<br>SecurityEvent<br>| where TimeGenerated > ago(1d)<br>| where EventID == 4625<br>| project Account, LogonType, TimeGenerated<br>
Monitoring Processes in Linux<br>ps aux --sort=-%mem | head -10<br>
Checking Network Connections<br>netstat -tulnp | grep LISTEN<br>
Detecting Suspicious Logins<br>last -a | grep pts<br>
Verifying System Logs for Anomalies<br>journalctl -p 3 -xb<br>
Pro Tip: Ensuring security tools are properly configured and tested helps prevent misconfigurations that could lead to missed security threats. Keep your queries optimized, validate results regularly, and maintain your system’s security integrity.
References:
Hackers Feeds, Undercode AI
