The provided PCAP analysis challenge can be solved using the Wireshark network analysis tool.
The challenge entails identifying information about a file transfer between a user named P13 and a web server.
By searching for frames containing the username “P13” in the Wireshark interface, it is possible to determine the source and destination IP addresses of the sender and the receiver involved in the network communication, answering the first question.
Knowing that P13 uploaded a file led to filtering for POST requests to identify the IP address of the web server, answering the second question.
Scrolling through the TCP stream of the relevant packets reveals the name of the file being transferred, answering the third question.
Digging further into the TCP stream provides the server’s name, answering the fourth question.
Finally, the fifth and six questions regarding the directory to which the file was uploaded and the time it took for the sender to send the encrypted file can be answered by examining the same TCP stream.
Overall, this challenge offers an opportunity to practice using Wireshark for network analysis and delve into the insights one can gain from examining network traffic.