Nearly 80% of cyber threats now mimic legitimate user behavior, making it harder than ever to distinguish between benign and malicious traffic. According to CrowdStrike’s 2025 Global Threat Report, most detected threats rely on malware-free techniques, such as credential theft, DLL hijacking, or living-off-the-land tactics, to evade discovery. At the same time, Verizon’s Data Breach Investigations Report highlights that breaches at edge devices and VPN gateways have risen sharply, from 3% to 22%.
Traditional defenses like firewalls and endpoint detection and response (EDR) are falling short, struggling to catch zero-day exploits and sophisticated, stealthy attacks. So where are modern security operations centers (SOCs) turning? The answer lies in a multi-layered detection strategy, with network-based visibility playing a critical role.
The Challenge with Conventional Tools
Threat actors have adapted to conventional defenses. They increasingly use legitimate tools and behaviors to move laterally and exfiltrate data unnoticed. Many of these tactics leave few — if any — traces that traditional EDR or firewalls can pick up.
While EDR remains essential, it struggles when:
- Attacks are malware-free
- Exploits target edge devices rather than endpoints
- Adversaries use legitimate credentials or tools maliciously
To address these gaps, SOCs are integrating network detection and response (NDR) solutions into their stack. Unlike EDR, NDR doesn’t rely on agents and provides visibility into the traffic patterns attackers can’t easily hide.
Layering Up: The Multi-Layered Detection Approach
Just as layering clothes protects against unpredictable weather, elite SOCs employ a multi-layered detection strategy for resilience. NDR complements EDR by consolidating various detection layers into one system, streamlining management, and improving incident response.
Here are the layers that make up this modern strategy:
1. The Base Layer
This is the lightweight, first line of defense — effective at catching known threats:
- Signature-based detection: Uses known attack patterns to identify malicious traffic quickly.
- Threat intelligence: Relies on shared indicators of compromise (IOCs) like suspicious IPs, domains, or file hashes.
2. The Malware Layer
This layer identifies known and variant malware payloads:
- YARA rules: Detect malware families by their shared code traits, even when their signatures change.
3. The Adaptive Layer
Designed to expose unknown, evasive, and evolving threats:
- Behavioral detection: Flags unusual activities like domain generation algorithms (DGAs), command-and-control traffic, or odd data exfiltration patterns.
- Machine learning models: Use both supervised and unsupervised techniques to identify anomalies and long-term attack patterns.
- Anomaly detection: Highlights deviations from baseline behaviors, such as unusual logins, odd client software, or suspicious management traffic.
4. The Query Layer
For fast, situational insights:
- Search-based detection: On-demand queries of network data to create quick alerts when a specific behavior is observed.
Why NDR Matters
The strength of these layers lies in their integration — which is where NDR platforms shine. NDR delivers a unified view of network activity, correlating signals from all layers and providing the context needed for faster and more accurate response.
Advanced NDR solutions also offer:
- Detection of emerging attack vectors and novel techniques
- Up to 25% reduction in false positives (FireEye, 2022)
- Faster response with AI-driven triage and automation
- Comprehensive coverage of MITRE ATT&CK network TTPs
- Community-driven and open-source detection enhancements
The Path Forward
As attacks grow more sophisticated and resource constraints tighten, relying solely on traditional detection methods is no longer viable. A multi-layered detection strategy, anchored by NDR, is quickly becoming essential.
For modern SOCs, the question is no longer if but how fast they can implement this layered approach. In a world where attackers move in seconds, the ability to detect and respond in real-time has become a competitive — and necessary — advantage.
Conclusion:
Elite SOCs are already ahead, layering up their defenses and leveraging NDR to stay ahead of attackers. For everyone else, the clock is ticking — and the time to act is now.