Threat Hunting Fundamentals: Why Network Data Should Be At Core of Your Process

Threat hunting is a critical practice that helps organizations proactively detect and respond to cyber threats. With the increasing sophistication of cyber attacks, threat hunting has become a necessity for every organization, regardless of its size or industry. In this article, we will explore the fundamentals of threat hunting and why network data should be at the core of your process.
What Is Threat Hunting?
Threat hunting is a proactive and iterative approach to detecting and responding to cyber threats. It involves searching for indicators of compromise (IOCs) that have not been detected by traditional security measures such as firewalls, intrusion detection systems, and antivirus software. Threat hunting is not a one-time event but rather an ongoing process that involves continuous monitoring and analysis of the organization's network and endpoints.
Threat hunting involves multiple techniques and tools, including data analysis, behavioral analysis, and anomaly detection. However, the most critical aspect of threat hunting is the ability to identify and investigate suspicious activity in the network. Threat hunters must be able to distinguish normal activity from abnormal activity and identify the root cause of any suspicious behavior.
Why Is Network Data Important in Threat Hunting?
Network data is a critical source of information for threat hunting. It provides visibility into the organization's network activity and allows threat hunters to identify suspicious behavior that may be indicative of a cyber attack. Network data includes logs from firewalls, routers, switches, and other network devices, as well as packet captures and network flow data.
Network data provides several benefits for threat hunting. First, it provides a comprehensive view of the organization's network activity, allowing threat hunters to identify abnormal behavior that may be indicative of a cyber attack. Second, it provides a rich source of information for forensic analysis, allowing threat hunters to reconstruct the attack and identify the attackers' tactics, techniques, and procedures (TTPs). Finally, network data provides a baseline of normal behavior, allowing threat hunters to identify deviations from this baseline and investigate any suspicious activity.
How To Use Network Data in Threat Hunting?
To effectively use network data in threat hunting, organizations must implement a robust network monitoring and analysis solution. This solution should provide real-time visibility into the network activity and allow threat hunters to quickly identify and investigate suspicious behavior.
There are several key steps that organizations can take to leverage network data in their threat hunting process:
Develop a threat hunting strategy: Organizations must develop a comprehensive threat hunting strategy that outlines the processes, techniques, and tools used in the threat hunting process.
Collect network data: Organizations must collect network data from all relevant sources, including firewalls, routers, switches, and endpoints.
Analyze network data: Threat hunters must analyze network data to identify suspicious activity and investigate any anomalies.
Correlate network data: Threat hunters must correlate network data with other sources of information, such as threat intelligence feeds and endpoint logs, to identify potential threats.
Respond to threats: If a threat is identified, organizations must respond quickly to mitigate the risk and prevent further damage.
Conclusion
Threat hunting is a critical practice for every organization that wants to proactively detect and respond to cyber threats. Network data is a critical source of information for threat hunting, providing visibility into the organization's network activity and allowing threat hunters to identify suspicious behavior that may be indicative of a cyber attack.
To effectively leverage network data in the threat hunting process, organizations must develop a comprehensive threat hunting strategy, collect network data from all relevant sources, analyze and correlate network data to identify potential threats, and respond quickly to mitigate the risk.
In conclusion, network data should be at the core of your threat hunting process. By using network data effectively, organizations can improve their threat detection capabilities and proactively defend against cyber threats.
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