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In this video walkthrough, We analyzed data exfiltration through DNS given a pcap file with Wireshark. This was part of Advent of Cyber 1 Day 6.
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Writeup
https://motasem-notes.net/analyzing-dns-data-exfiltration-with-wireshark-tryhackme-advent-of-cyber-1-day-6/
TryHackMe Advent of Cyber 1 Day 6
https://tryhackme.com/room/25daysofchristmas
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SSD secure disclosure is 0day/vulnerability brokers, that has been around since 2007. Focused on getting security researchers the highest bounty for their findings, in a very personal, quick manner, SSD deals with the hassle of communicating with vendors and disclosing findings, with no additional fees
https://ssd-disclosure.com/
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0:00 - Introduction to Advent of Cyber Day 6 Challenge
0:10 - Overview of Wireshark Packet Analysis and Steganography
0:34 - Downloading and Opening the Packet Capture (PCAP) File
0:52 - Analyzing DNS Traffic for Data Exfiltration
2:17 - Decoding Exfiltrated Data Using CyberChef
3:27 - Answering the First Question: Data Exfiltrated via DNS
3:32 - Finding What Little Timmy Wanted for Christmas
4:09 - Exporting HTTP Objects from PCAP
5:12 - Cracking the Password for the Christmas List Zip File
7:00 - Answering the Second Question: What Little Timmy Wanted for Christmas
7:52 - Steganography Analysis on tryhackme.jpg File
8:47 - Using Steghide to Extract Hidden Data from the Image
9:20 - Answering the Third Question: Hidden Data Within the Image
10:08 - Introduction to SSD Security Disclosure Website
10:25 - Overview of Zero-Day Vulnerability Brokers
11:10 - Exploring the Advisories Archive for Vulnerabilities and Exploits
12:06 - Conclusion and Final Thoughts on the Challenge