Wireshark Certificate Request: Identifying Trickbot Infections through Network Traffic Analysis

Trickbot, a notorious information stealer and banking malware, has been wreaking havoc on victims since 2016. This malicious software is often distributed through malspam, tricking users into downloading infected files disguised as invoices or documents. As security professionals, it's crucial to identify Trickbot infections quickly and effectively to mitigate its impact. In this tutorial, we'll explore how to use Wireshark certificate requests to analyze network traffic and detect Trickbot infections.

Before diving in, ensure you have a column display customized according to our previous tutorial on Wireshark display filters. This will allow us to focus on the specific steps required for today's tutorial.

Trickbot is known to be distributed through not only malspam but also other malware such as Emotet, IcedID, or Ursnif. When a host becomes infected or compromised, security professionals with access to packet captures (pcaps) of network traffic need to understand the activity and identify the type of infection.

In this tutorial, we'll analyze two different methods of Trickbot infections: one caused by malspam and another distributed through other malware. We'll examine pcaps from both scenarios and demonstrate how to use Wireshark certificate requests to identify Trickbot's presence.

By following these steps and using the right Wireshark filters, security professionals can quickly identify Trickbot infections and take appropriate action to contain the spread of this malicious software. Remember to always keep your Wireshark skills up-to-date to stay ahead of emerging threats like Trickbot.