OSINT challenges are some of my favorites in a CTF; however, they can be difficult to complete without being given a lot of information.
Open Source Intelligence (OSINT) uses online tools, public records, and social media to find information about a target, usually about an individual or organization. For example, if you’ve ever Googled someone before you met them for your safety, that’s OSINT!
The challenges I’m sharing in this post came from CSI CTF–a jeopardy-style event that had a variety of challenges that was held in mid-July of 2020. This CTF had some awesome sponsors that provided some great prizes, including HackTheBox subscriptions, TryHackMe subscriptions, Digital Ocean VPS credits, and much more.
This post serves as an overview of the CTF event, along with specifics on certain challenges, which both current CTF participants and those who are looking to try them out in the future may find interesting. P.S. If you didn’t see it yet, check out part 1 as well!
Pirates of Memorial Challenge
The challenge I started with was called “Pirates of the Memorial.” In this instance, we are given the image featured below and are challenged to see if we can find the original photographer: