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Network Analysis Playbook

Visualise infrastructure, monitor traffic, and uncover anomalous behaviour with this comprehensive guide.

Recommended Tools

Wireshark

Network protocol analyzer

Nmap

Network discovery and security auditing

Shodan

Search engine for Internet-connected devices

Maltego

Link analysis and data visualization

Investigation Steps

  1. 1

    Identify target infrastructure and IP ranges

  2. 2

    Perform reconnaissance using passive DNS and WHOIS lookups

  3. 3

    Map network topology and identify key nodes

  4. 4

    Monitor traffic patterns for anomalies

  5. 5

    Document findings and create visual network maps

Quick Wins

  • Use Shodan to quickly identify exposed services and devices
  • Leverage passive DNS data to map infrastructure without direct scanning
  • Create visual network diagrams with Maltego for better pattern recognition