Trend Micro Network Security

What is Trend Micro Network Security?

Perimeter controls see traffic entering and leaving; they see almost nothing of what moves between machines inside. That gap is where an intrusion spends most of its time, and it is the specific cybersecurity blind spot network detection exists to cover.

Trend Micro Network Security is a network threat detection and response (NDR) solution that provides network traffic visibility and attack protection. It is integrated with the Trend Vision One platform.

Key differentiators:

• NDR + IPS - detection and blocking in one
• Encrypted Traffic Analysis - encrypted traffic analysis without decryption
• XDR correlation - correlation with endpoint, email, and cloud
• Network forensics - full visibility for incident analysis

Solution Architecture

graph TB
    subgraph "Network Traffic"
        A[Internet] --> B[Perimeter]
        C[Internal] --> D[Core Switch]
        E[Data Center] --> F[Server Segment]
    end

    subgraph "Trend Network Security"
        G[Network Sensor]
        H[Deep Packet Inspection]
        I[Behavioral Analysis]
        J[Threat Intelligence]
    end

    subgraph "Response"
        K[Alert]
        L[Block]
        M[Quarantine]
    end

    B --> G
    D --> G
    F --> G
    G --> H --> I --> J
    J --> K
    J --> L
    J --> M

Protection Features

Network Detection & Response (NDR)

Network traffic threat detection:

• Behavioral analysis - network behavior anomaly detection
• Machine learning - ML models for unknown threats
• Protocol analysis - deep protocol analysis
• Metadata extraction - metadata extraction for analysis

Intrusion Prevention System (IPS)

Network attack blocking:

• Signature-based - known exploit detection
• Zero-day protection - virtual patching
• Protocol anomaly - protocol irregularity detection
• DoS/DDoS protection - DoS attack protection

Encrypted Traffic Analysis

Encrypted traffic analysis:

• TLS inspection - optional TLS decryption
• Behavioral analysis - analysis without decryption
• JA3/JA3S fingerprinting - TLS connection fingerprinting
• Certificate analysis - certificate analysis

Lateral Movement Detection

Lateral movement detection:

• East-West traffic - internal traffic monitoring
• Credential abuse - credential abuse detection
• Protocol tunneling - tunneling detection
• Data exfiltration - data leak detection

Deployment Models

Inline (IPS Mode)

• Active threat blocking
• Inline placement in traffic path
• Highest protection level

Passive (TAP/SPAN)

• Monitoring without traffic impact
• Traffic copying via TAP or SPAN
• Ideal for pilot or audit

Hybrid

• Combination of inline and passive
• Different modes for different segments
• Deployment flexibility

Integration with Trend Vision One

Network Security as part of Vision One:

[Network Detection] ----+
                        |
[Endpoint Detection] ---+--> [XDR Correlation] --> [Unified Alert]
                        |
[Email Detection] ------+
                        |
[Cloud Detection] ------+

XDR Benefits:

• Event correlation from multiple layers
• Full attack chain visibility
• Automatic cross-domain response
• Single view of all incidents

Detection Scenarios

Ransomware Attack Chain

1. Phishing email → Email Security detects
2. Malware download → Network Security blocks C2
3. Lateral movement → NDR detects lateral movement
4. Data exfiltration → Exfiltration blocking

Advanced Persistent Threat (APT)

1. Initial access → exploit detection
2. C2 communication → beaconing blocking
3. Internal reconnaissance → scan detection
4. Data staging → data aggregation alert

Who is it for?

Trend Micro Network Security is for organizations that:

• Need network traffic visibility
• Want to detect lateral movement and APT
• Require IPS for inline protection
• Seek XDR integration with endpoint and cloud

Deployment with nFlo

1. Network Assessment - network architecture analysis
2. Sensor Placement - sensor location planning
3. Deployment - sensor installation (inline or passive)
4. Baseline - learning normal network behavior
5. Policy Tuning - IPS policy adjustment
6. XDR Integration - connection with Vision One