WIRESHARK

Network Traffic Capture & Protocol Analysis

What is Wireshark?

Wireshark is the world’s most widely used network protocol analyzer. It allows security analysts to capture live packets, inspect protocols, detect anomalies, and perform network forensics.

Captured Packet Example

Frame 1024: 1514 bytes on wire Ethernet II, Src: 00:1A:2B:3C:4D:5E, Dst: 08:00:27:AA:BB:CC Internet Protocol Version 4, Src: 192.168.1.10, Dst: 192.168.1.1 Transmission Control Protocol, Src Port: 52344, Dst Port: 80 Hypertext Transfer Protocol GET /login HTTP/1.1 Host: vulnerable-site.com Cookie: PHPSESSID=4f7c92ab1d

Common Analysis Filters

http → Show only HTTP traffic tcp.port == 80 → Filter port 80 ip.addr == 192.168.1.1 → Specific host dns → DNS queries tcp.flags.syn == 1 → SYN scan detection

Attack Phase Mapping

[ Packet Capture ] → Monitor raw network traffic [ Protocol Analysis ] → Detect credentials, sessions [ Forensics ] → Trace attacker movement & exfiltration
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