Wireshark Display Filters: Essential Filters Every Cybersecurity Analyst Should Master
Wireshark, a powerful network protocol analyzer, is a cornerstone tool for cybersecurity analysts. Its ability to capture and dissect network traffic provides invaluable insights into network behavior, potential threats, and security vulnerabilities. However, the sheer volume of network traffic can be overwhelming. This is where Wireshark’s display filters come into play. By applying specific filters, analysts can narrow down the captured packets to focus on relevant information, significantly improving efficiency and accuracy in their investigations.
In this article, we will explore some of the most essential Wireshark display filters that every cybersecurity analyst should master.
Basic Filtering Techniques
Before diving into advanced filtering techniques, let’s start with some fundamental concepts:
Protocol Filtering:
tcp: Filters for TCP packetsudp: Filters for UDP packetsicmp: Filters for ICMP packetshttp: Filters for HTTP packetsdns: Filters for DNS packetsftp: Filters for FTP packetssmtp: Filters for SMTP packets
