CrowdStrike Falcon Next-Gen SIEM Integrates with Third-Party EDR Solutions

CrowdStrike is enhancing its Falcon Next-Gen SIEM to incorporate support for third-party Endpoint Detection and Response (EDR) solutions, initially focusing on Microsoft Defender. This integration aims to streamline Security Operations Center (SOC) workflows by providing a unified platform for detection, investigation, and response across diverse environments. The goal is to reduce the reliance on fragmented systems, which often leads to slower detection and delayed response times. The new features include Falcon Onum for real-time data control and federated search to enable access to data across various storage locations without requiring re-ingestion. These updates are designed to improve data fidelity, lower infrastructure costs, and establish a robust foundation for AI-driven security operations.

Attack Chain

This brief focuses on data integration and SOC modernization, not a specific attack chain. However, these features aim to improve detection across all stages of an attack. A hypothetical attack chain where this integration could be beneficial:

1. Initial Access: An attacker gains initial access through a phishing email with a malicious attachment.
2. Execution: The user opens the attachment, executing a malicious script via PowerShell (T1059.001).
3. Persistence: The script creates a scheduled task to ensure persistence on the compromised system (T1053.005).
4. Privilege Escalation: The attacker attempts to elevate privileges by exploiting a known vulnerability or using a tool like Mimikatz (T1068).
5. Lateral Movement: Using stolen credentials, the attacker moves laterally to other systems within the network (T1021.002).
6. Command and Control: The attacker establishes a command and control (C2) channel to communicate with the compromised systems (T1071.001).
7. Data Exfiltration: The attacker exfiltrates sensitive data to an external server (T1041).
8. Impact: The data is used for extortion, causing financial and reputational damage (T1485).

Impact

The integration of third-party EDR solutions into Falcon Next-Gen SIEM aims to mitigate the impact of attacks by improving detection and response times. Without this integration, organizations face challenges in correlating data across different security tools, leading to slower investigations and delayed responses. Successful attacks can result in data breaches, financial losses, and reputational damage. By unifying detection, investigation, and response, organizations can reduce the time to detect and respond to threats, minimizing the potential impact of attacks.

Recommendation

• Leverage Falcon Onum's real-time data control features to filter and enrich telemetry, ensuring AI models and detection workflows operate on high-signal, context-rich data as mentioned in the overview.
• Implement federated search capabilities to investigate across live, network, and archived data sources without costly re-ingestion or duplication as discussed in the overview.
• Utilize third-party indicator management to operationalize threat intelligence at scale, improving detection of known threats mentioned in the blog.
• Deploy Sigma rules that leverage data from both Falcon Next-Gen SIEM and integrated third-party EDR solutions to detect cross-domain attacks, enhancing overall threat visibility (see rules below).