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2025-02-13
The latest Detections Digest issue (https://lnkd.in/d6ftYk2d) covers the most significant changes to detection rules from 10 of the 40+ monitored GitHub repos. Contributors added 82 new rules and updated more than 200 existing ones. This edition highlights expanded coverage for endpoint and cloud threats, including rules to monitor privilege escalation via registry changes, AWS misconfiguration detections, and identity protection with QR sign-in monitoring in Entra ID.
A new repository, Steven Lim’s Hunting-Queries-Detection-Rules (https://lnkd.in/dP9Y6Kup), has been added to the monitored list. This repo provides valuable resources for detection engineering and threat hunting.
Practice-Verified Commands and Codes:
1. Monitor Registry Changes for Privilege Escalation (Windows):
Get-WinEvent -LogName "Security" | Where-Object { $<em>.Id -eq 4657 -or $</em>.Id -eq 4663 }
This command retrieves security events related to registry changes, which are often indicators of privilege escalation attempts.
2. AWS Misconfiguration Detection (AWS CLI):
aws configservice describe-config-rules --query 'ConfigRules[?ConfigRuleState==<code>ACTIVE</code>]'
Use this command to list active AWS Config rules to ensure compliance and detect misconfigurations.
3. Entra ID QR Sign-In Monitoring (PowerShell):
Get-AzureADAuditSignInLogs | Where-Object { $_.AppDisplayName -eq "QR Sign-In" }
This script helps monitor QR sign-in activities in Entra ID for identity protection.
What Undercode Say:
Detection engineering is a critical component of modern cybersecurity, enabling organizations to proactively identify and mitigate threats. The latest updates in detection rules, particularly for endpoint and cloud environments, reflect the evolving threat landscape. Privilege escalation via registry changes remains a common attack vector, and monitoring these changes is essential for maintaining system integrity. AWS misconfigurations continue to pose significant risks, making automated detection tools indispensable. Additionally, identity protection mechanisms like QR sign-in monitoring in Entra ID are becoming increasingly important as attackers target authentication processes.
To stay ahead of threats, cybersecurity professionals must leverage these updated detection rules and integrate them into their security operations. Regularly reviewing and updating detection logic ensures that defenses remain effective against emerging threats. Tools like Steven Lim’s Hunting-Queries-Detection-Rules repository provide valuable resources for enhancing detection capabilities.
For Linux users, consider using commands like `auditd` to monitor system changes:
sudo auditctl -w /etc/passwd -p wa -k passwd_changes
This command tracks modifications to the `/etc/passwd` file, which is often targeted in privilege escalation attacks.
Windows users can enhance their detection capabilities with PowerShell scripts that analyze event logs for suspicious activities. For example:
Get-WinEvent -LogName "System" | Where-Object { $<em>.Id -eq 7045 -and $</em>.Message -like "<em>new service</em>" }
This script identifies newly created services, which could indicate malicious activity.
By combining these tools and techniques with the latest detection rules, organizations can significantly improve their threat detection and response capabilities. Stay informed, stay vigilant, and continuously refine your detection strategies to defend against evolving cyber threats.
References:
Hackers Feeds, Undercode AI
