Liam Geyer

Writeups of exclusive or active HTB content are password protected.

Writeups of exclusive or active HTB content are password protected.

👾 Machine OverviewThis is a writeup of the Windows machine Active from HTB , it’s an easy difficulty windows machine which featured credentials stored in insecure Group Policy Preferences, and Ker...

I recently participated in the DOE’s Cyberforce Conquer the Hill Competition , a jeopardy style CTF, placing 2nd out of 77 players. This was my first time participating in one of the individual Cyb...

I recently competed in Temple University’s Social Engineering Competition for the first time, along with some other CCSO members. We were able to take first place, with our B team placing 3rd! Th...

I recently held a Software Defined Radio (SDR) focused meeting for CCSO , playing around with an RTL-SDR. We had some fun decoding local hospital pager data, listening to radio stations, investigat...

I recently participated in SwampCTF , a 2-day student-run CTF put on by the University of Florida’s Student Information Security Team . Our team was madeup of a handful of students from CCSO , and ...

I recently participated in Deloitte’s Cyber Threat Competition for the first time, placing second. The competition consisted of two rounds: round 1 had a security questionnaire and CTF, and round ...

After repeatedly spinning up short-term Sliver C2 servers for various red team lab/club engagements, I decided to set up my own for future use. I chose to leverage Oracle Cloud’s Free Tier , i...

This is a write-up of the Sync machine on VulnLab by xct. This box involves anonymous rsync, cracking salted md5 hashes, and manipulating a backup script. UserHint: 12Explore how to crack salted ...