

- #Wireshark filters ip archive
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Look for unencrypted HTTP traffic over TCP port 80 directly to an IP address without an associated domain. Review the results in your column display.

Using Wireshark customized from our tutorials, apply a basic web filter to see if anything stands out. If the infected host is part of a high-value environment, an IcedID infection would likely lead to ransomware. The C2 activity can lead to BackConnect traffic, Cobalt Strike and Virtual Network Computing (VNC) activity. The newly created, persistent IcedID generates HTTPS traffic to communicate with command and control (C2) servers. The installer then converts this binary into malware used for a persistent IcedID infection. This installer generates an unencrypted HTTP GET request that retrieves a gzip-compressed binary. These infections typically use an EXE or DLL that acts as an installer. Most IcedID infections use a standard variant of IcedID. Flowchart for chain of events in the April 2023 IcedID infection. A flow chart illustrating this chain of events is shown in Figure 1. To understand IcedID network traffic, you should understand the chain of events for an IcedID infection. Follow-up activity: BackConnect traffic.
#Wireshark filters ip windows
Infected Windows client user account name: csilva.Infected Windows client hostname: DESKTOP-SFF9LJF.
#Wireshark filters ip mac
Infected Windows client MAC address: 14:58:d0:2e:c5:ae.Malicious traffic for this infection started on April 19, 2023, at 15:31 UTC.The AD environment for this pcap contains three Windows clients, but only one was infected with IcedID. Is there any follow-up activity from other malware?.What is the user account name from the infected Windows host?.What is the hostname of the infected Windows client?.What is the MAC address of the infected Windows client?.What is the IP address of the infected Windows client?.What is the date and time in UTC the infection started?.Quiz Questionsįor this IcedID infection, we ask participants to answer the following questions previously described in our standalone quiz post:
#Wireshark filters ip password
Use infected as the password to unlock the ZIP archive.
#Wireshark filters ip archive
To obtain the pcap, visit our GitHub repository, download the April 2023 ZIP archive and extract the pcap. As always, we recommend using Wireshark in a non-Windows environment like BSD, Linux or macOS when analyzing malicious Windows-based traffic. A list of tutorials and videos is available.

We also recommend readers customize their Wireshark display to better analyze web traffic. This quiz requires Wireshark, and we recommend using the latest version of Wireshark, since it has more features, capabilities and bug fixes over previous versions.

Our introductory blog Cold as Ice: Unit 42 Wireshark Quiz for IcedID provides a packet capture (pcap) from an IcedID infection in April 2023.
