Introduction
What isNDR (Network Detection and Response)
NDR is a cybersecurity approach that focuses on identifying and responding to
threats within a network by continuously monitoring and analyzing network
traffic.
It provides visibility into internal and external communications to identify
suspicious or malicious behavior that other tools (like EDR or SIEM) might
miss.
3.
Trellix NDR
Itis a solution that focuses on identifying
and responding to threats within a network
by continuously monitoring and analyzing
network traffic.
It provides real-time visibility into internal
and external network traffic to detect
suspicious activity that might not be
visible from endpoint or log-based tools.
4.
Benefits of TrellixNDR
Detects threats missed by endpoint or log-based tools
Enhances Zero Trust architectures with deep visibility
Reduces mean time to detect (MTTD) and respond (MTTR)
Strengthens SOC capability with contextual network intelligence
5.
Main Components
Here arethe main components of Trellix NDR
Traffic Capture & Inspection
Deep Packet Analysis
Behavioral & Signature-Based Detection
Threat Intelligence Integration
Alerting, Correlation & Response
6.
Traffic Capture &Inspection
Passive sensors are deployed across strategic network points (e.g., SPAN
ports, TAPs).
NDR captures full packet data (PCAP) and metadata (NetFlow/IPFIX) in real
time.
It inspects:
1. DNS, HTTP/S, FTP, SMTP traffic
2. Encrypted traffic via TLS fingerprinting
3. Payloads for file reconstruction and analysis
7.
Deep Packet Analysis
Performs Layer 7 analysis (application layer) to understand true behavior
behind sessions.
Extracts artifacts such as:
1. File hashes
2. Command-and-control patterns
3. Lateral movement attempts
4. Anomalous user behavior
8.
Behavioral & Signature-BasedDetection
Combines:
1. Static signatures for known threats (Trellix Threat Labs intelligence)
2. Behavioral analytics to detect novel or zero-day threats
3. AI/ML models to baseline normal traffic and flag anomalies
9.
Threat Intelligence Integration
Enriched with Trellix Global Threat Intelligence (GTI) and Mandiant legacy
feeds.
Detects:
1. Known malicious IPs/domains
2. Suspicious payloads
3. Threat actor TTPs (MITRE ATT&CK mapping)
10.
Alerting, Correlation &Response
Generates detailed alerts with context (host, user, protocol, file, timestamp).
Integrates with Trellix XDR and EDR to correlate network findings with
endpoint behaviors.
Supports:
1. Automated playbooks
2. Threat hunting
3. Incident triage and investigation
11.
Summary
Trellix NDR enhancesvisibility into network-layer threats that may go
undetected by endpoint or email tools alone. With AI-powered analytics,
full packet capture, and deep integration across the Trellix XDR
platform, it enables a proactive, intelligence-driven defense strategy.