Hi, I am Stefan

Stefan Tobler

Co-President at UGA Society of Cyber Security

I am a passionate cyber security student graduating in the Spring of 2021 with a BS in Computer Science. In my free time I enjoy tackling Hack the Box machines and learning about new security technologies. I am an incoming security engineer at Capital One.

Leadership
Team Work
Communication
Hard Working
Fast Learner
Problem Solving

Skills

Java
Java

Created object-oriented programs and unit tests using JUnit testing. TAed for an intro to Java course.

Python
Python

Capable of scripting and writing programs in Python. Used for quality of life and work flow improvements.

Kali Linux
Kali Linux

Primary CTF and Hack the Box Machine. Capable of writing basic bash/shell scripts.

Git
Git

Experienced with git-based development. Mostly, use Github for personal and school projects.

C++
C++

Know C/C++ programming. Experience decompiling binaries with Ghidra and analyzing code.

MySQL
MySQL

Working knowledge of MySQL and relational database design.

Experiences

1
Geopolitical Risk Intern
VerSprite

Sep 2020 - Dec 2020, Atlanta, Georgia (Remote)

VerSprite Cybersecurity is a cybersecurity consulting firm

Responsibilities:
  • Research cyber campaigns related APT 33, an Iranian based cyber threat group.
  • Report on cyber campaigns using the STIX II format.
  • Investigated cyber trends that we anticipated would continue into 2021.
VP of Hacking & Captain of the Cyber Team
UGA Society of Cyber Security

Jan 2020 - Dec 2020, Athens, Georgia

UGA SCS is a student organization for those interested in cybersecurity.

Responsibilities:
  • Seek out and organize cyber team events.
  • Gather and present resources to new club members trying to learn more about cybersecurity.
  • Encourage members to actively participate in CTF challenges and pen-testing labs such as Hack the Box.
2
3
Logistics Coordinator
UGAHacks

April 2019 - Feburary 2021, Athens, Georgia

UGAHacks is a student run hackathon which hosts over 650 students at a 48 hour coding competition! We will be holding our 6th annual hackthon spring 2021.

Responsibilities:
  • Coordinate catering options to feed over 650 attendees.
  • Organize time slots for workshop hosts during the main event.
  • Schedule shuttle transportation for out of city participants.
Teaching Assistant for Software Development
University of Georgia Department of Computer Science

Jan 2020 - May 2020, Athens, Georgia

I was a teaching assistant for CSCI 1302 Software Development and worked with students to improve their comprehension of Java programming fundamentals.

Responsibilities:
  • Engage with 5+ students each week seeking assistance with course material.
  • Developed auto-grading scripts using Bash and JUnit.
  • Communicated core Java development principals to other undergraduate students.
4

Projects

8-Bit Computer
8-Bit Computer
Fall 2019

I built an 8-bit computer at the binary level using simple logic gates and breadboards.

Details
ToblerHacks
Feb 2020

A parody hackathon website that was going to be hosted for my friends and I to develop something awesome.

Star
Snakey
Apr 2018 - Aug 2018

My version of the game Snake. Written in Python using the PyGame library, I added various game textures, highscores, and challenges as well as XBOX gamepad support.

Star
Hack the Box
Hack the Box
Hacker Jun 2020 - Present

Actively learning to enumerate machines, exploit misconfigurations and escalate priviledges.

Details
Cyber Challenge Writeups
Cyber Challenge Writeups
Writer Oct 2020 - Present

A blog of comprehensive walkthroughs of the challenges I have completed from various CTF and cybersecurity related challenges.

Details
Try Hack Me
Try Hack Me
Hacker May 2020 - Present

Learning about tools and techniques for penetration testing using Kali Linux.

Details

Recent Posts

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Archetype

This was a good box to get back in the swing of things, it gave me a good challenge, and reminded me of how difficult it can be to google for Windows enum tools. Besides that, it was a good reminder of how to interact with SMB and showed me a new place to look for user command history in Windows.

March 15, 2021 Read
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Nahamcon 2021 CTF

This is my second time competing in the Nahamcon CTF. It is very well managed and has some good challenges. This year I didn’t have as much time to compete due to some overlapping assignments, but here are the write ups I threw together.

March 13, 2021 Read
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Docker - Containerization vs. Virtualization

Containers and virtual machines are used all across cloud infrastructure. Cloud providers utilizes virtualization to divvy up hardware resources so that they can maximize hardware utilization on their machines. Docker is used to develop, deploy, and ship applicaiations quickly with low overhead some isolation.

November 10, 2020 Read

Achievements

NCL Fall 2020 99th Percentile

Rotary Scholarship Recipient

UGA Honors Program