Surrey Cyber Security Cluster CTF

Posted on 18 October 2024

This year I became a member of the Surrey Cyber Security Cluster and have done my best to attend as many events as possible. It has been a great opportunity to learn new things and meet new people, and when I heard they were doing a CTF I had to compete! I joined in a team with a group of colleagues, and I mainly focused on the Packet Analysis challenges. Sadly, in the hectic CTF environment I forget to take any screenshots of the actual challenges, but I can summarise the ones I completed below:

• Decrypting data based on a leaked private key
• Re-combining corrupted data to find a flag
• Log forensics
• Wireshark packet analysis of C&C traffic
• Basic buffer overflows
• Web hacking - Cart checkout bypass
• PDF & Powerpoint File forensic
• Macro de-obfuscation

It was a really fun evening, the challenges continued over the next few days and I worked with my colleagues to complete the remaining challenges. Our team ended up placing first! I was able to attend a follow-up event to collect a small prise which was distributed around the team.

Photos