Often, especially in CTF competitions, you will encounter situations where a PCAP file contains an event where a file has been transferred, and you are asked to extract the file.

One way would be to monitor the stream and try to copy bytes from the "Hex dump" or "C arrays" view into a file, and then parse them with a Python script or work with them on the Linux command line.

![](sanity:image-8f958edd250c4c6f578f5aa0a53d0277623c4a93-1378x578-png)

![](sanity:image-01103b6e5a20e7f7bdecd586ce300027d2351c81-1220x960-png)

![](sanity:image-9400a922a5dcdde735c18d0a75d281145ed07f9d-1654x1140-png)

Easier way, however, is to use the Wireshark's File -> Export Objects tool.

![](sanity:image-9631d84dc9d5a68316a7d7c6c58c239767feb4dd-992x1058-png)

![](sanity:image-4a0870ec8ab7e4089ab3affa62a395d1f9347b4f-1482x1076-png)


Extracting files from a PCAP file

Wireshark is a tool used to capture and analyze data traffic. The tool is suitable for learning different network protocols and you often need it in CTF competitions as well.

Wireshark is a tool used for capturing and analyzing network traffic. It enables the examination and analysis of network traffic in real-time or from saved PCAP files.

Wireshark is able to dissect various network protocols and display detailed information about each network packet. Security experts can use it to detect suspicious or malicious network traffic, such as the spread of malware, attacks, or phishing. It is often needed in CTF competitions as well.

Especially Wireshark is suitable for learning network protocols. You can, for example, start Wireshark, open a browser, go to Hakatemian's page, and then see the whole transaction in Wireshark.

In this course, we will learn the basics of Wireshark, such as capturing traffic, using the search field, and understanding the statistics in the Wireshark program.

Computer Networks

What is wireshark?

Installation

Intro

The first steps

Extracting files from a PCAP file

Learn to hack — start here