Download the zip file using wireshark

Past releases can be found by browsing the all-versions directories under each platform directory. You can stay informed about new Wireshark releases by subscribing to the wireshark-announce mailing list. We also provide a PAD file to make automated checking easier.

File hashes for the 3. Prior to April downloads were signed with key id 0x21FA. Wireshark is subject to U. Take heed. Consult a lawyer if you have any questions. Figure Exporting the malware binary returned from foodsgoodforliver[. Then use shasum -a to get the SHA hash of the file, as shown in Figure If you search for this hash online, you should find results from at least two publicly available online sandbox environments.

Finally, we can review C2 traffic from this Dridex infection. Without a key log file created when the pcap was originally recorded, you cannot decrypt HTTPS traffic from that pcap in Wireshark. Please enter your email address! Please mark, I'm not a robot! By submitting this form, you agree to our Terms of Use and acknowledge our Privacy Statement.

Figure 1. Figure 2. Encryption Key Log File An encryption key log is a text file. An example is shown in Figure 3. Figure 3. The key log file used in this tutorial. Figure 4. Github repository with link to ZIP archive used for this tutorial. Figure 5. Downloading the ZIP archive for this tutorial.

Key log file and pcap for this tutorial. Figure 7. The file command returns the type of file. The shasum command will return the file hash, in this case the SHA file hash. Figure 5.

Determining the file type and hash of our two objects exported from the pcap. The information above confirms our suspected Word document is in fact a Microsoft Word document. It also confirms the suspected Windows executable file is indeed a Windows executable.

We could also do a Google search on the SHA hashes to possibly find additional information. In addition to Windows executable or other malware files, we can also extract web pages. Our second pcap for this tutorial, extracting-objects-from-pcap-example When reviewing network traffic from a phishing site, we might want to see what the phishing web page looks like.

Then we can view it through a web browser in an isolated environment as shown in Figure 7. Figure 6. Exporting a fake PayPal login page from our second pcap. Figure 7. The exported fake PayPal login page viewed in a web browser. A banking Trojan known as Trickbot added a worm module as early as July that uses an exploit based on EternalBlue to spread across a network over SMB.

We continue to find indications of this Trickbot worm module today. Our next pcap represents a Trickbot infection that used SMB to spread from an infected client at The pcap, extracting-objects-from-pcap-example Open the pcap in Wireshark. Figure 8. Getting to the Export SMB objects list. Figure 9. The export SMB object list. A closer examination of their respective Filename fields indicates these are two Windows executable files.

See Table 1 below for details. Table 1. In the Content Type column, we need [ Any number less than percent indicates there was some data loss in the network traffic, resulting in a corrupt or incomplete copy of the file.

Table 2. SHA file hashes for the Windows executable files. Certain types of malware are designed to turn an infected Windows host into a spambot. These spambots send hundreds of spam messages or malicious emails every minute.

In some cases, the messages are sent using unencrypted SMTP, and we can export these messages from a pcap of the infection traffic. One such example is from our next pcap, extracting-objects-from-pcap-example In this pcap, an infected Windows client sends sextortion spam. Open the pcap in Wireshark, filter on smtp. This happened in five seconds of network traffic from a single infected Windows host.

Figure