Wireshark: Network Protocol Analyzer for Security Analysis

Tool Overview

Wireshark is the world most widely used network protocol analyzer, providing deep inspection of hundreds of protocols and real-time capture and offline analysis capabilities. It is essential for network troubleshooting, security analysis, and protocol development.

Core Capabilities

• Live packet capture from multiple network interfaces
• Offline analysis of captured traffic
• Deep protocol inspection for 2,000+ protocols
• VoIP analysis and reconstruction
• Capture file compression and export

Analysis Features

Display Filters

• Powerful filter syntax for traffic isolation
• Color-coded packet visualization
• Custom filter creation and saving
• Follow stream capabilities

Statistics and Visualization

• Protocol hierarchy analysis
• Conversation statistics
• Endpoint analysis
• IO graphs and flow graphs

Security Applications

• Network intrusion detection
• Malware traffic analysis
• Data exfiltration detection
• Protocol vulnerability research
• Incident response investigation

Advanced Capabilities

• TLS/SSL decryption (with keys)
• Bluetooth and USB protocol analysis
• Custom dissectors for proprietary protocols
• Lua scripting for automation

Advantages

• Free and open source
• Cross-platform support
• Extensive documentation and community
• Regular updates and protocol additions

Limitations

• Encrypted traffic analysis requires keys
• Large capture files can be resource intensive
• Complex for beginners

Classification: UNCLASSIFIED // FOR OFFICIAL USE ONLY