Aristofanis Chionis Koufakos

Offensive CyberSecurity Engineer

About Me

Hi 👋🏻! Welcome to my website, my name is Aristofanis, I come from Athens, Greece, and currently live in Copenhagen, Denmark!

I am a Cyber Security Engineer with a focus on Red Teaming and Penetration Testing. I have been working as a Red Team Operator at Danske Bank, where I gained valuable experience performing adversary simulation, vulnerability assessments, and exploitation of various systems such as web applications, databases, servers, printers, and other devices and services.

Before getting into Cyber Security, I gained my BSc in Computer Science and worked in several EU companies as a Web Developer.

Speaker at Conferences

Honeyscanner @BlackHat Europe 2023

I had the privilege to present Honeyscanner at BlackHat Europe 2023. The event took place on the 6th of December 2023 in London, UK. BlackHat is a computer security conference that provides security consulting, training, and briefings to hackers, corporations, and government agencies around the world. It is a very well-known and established event that gathers the best hackers from around the world and having the opportunity to be among them was a phenomenal experience.

Projects

Honeyscanner

Designed and Developed Honeyscanner as part of my participation in Google Summer of Code 2023. Honeyscanner is a vulnerability analyzer for Honeypots. Its purpose is to automatically assess the security posture of specific open-source honeypot projects. It does this by performing a series of passive attacks - including static code analysis and container scanning, and consecutively it executes a series of active attacks against a given honeypot instance. In the end, it provides the tester with a comprehensive security report.

CERN slides

Designed, Developed, and Deployed in production, a web-based open source ’presentation slides’- creator application. Collaborated with Storage and Authentication teams to integrate the prototype into CERN’s ecosystem.

Experience

Danske Bank

Cyber Security Engineer (Red Team), Associate

Oct 2023 - present, Copenhagen, Denmark

https://danskebank.dk/

Skills: Windows Security, Active Directory, Penetration Testing, Network Security, Web Application Security, Command and Control (C2) Infrastructure, Application Security, Burp Suite

Google Summer of Code 2023

Open Source Developer with The Honeynet Project

Mar 2023 - Aug 2023, Remote, Denmark

https://summerofcode.withgoogle.com/archive/2023/projects/6oyTxlUo

Google Summer of Code 2023 participant with The Honeynet Project. Developed Honeyscanner: A vulnerability analysis tool for Honeypots. Skills: Python3, Application Development, Vulnerability Assessment, Penetration Testing, Network Security

Danske Bank

Cyber Security Engineer (Red Team), Student

Nov 2022 - Oct 2023, Copenhagen, Denmark

https://danskebank.dk/

Skills: Windows Security, Active Directory, Penetration Testing, Network Security, Web Application Security, Command and Control (C2) Infrastructure, Application Security, Burp Suite

Nordea Bank

Software Engineer, student

Nov 2021 - Nov 2022, Copenhagen, Denmark

https://www.nordea.dk/

Skills: Web Development, Javascript, Typescript, ReactJS, MaterialUI

Upstream

Frontend Software Engineer

Apr 2021 - Jul 2021, Athens, Greece

https://www.upstreamsystems.com/

Skills: ReactJS, NextJS, Styled Components, MaterialUI, React-Intl

CERN

Technical Student (Full Stack Web Developer)

Aug 2019 - Sep 2020, Geneva, Switzerland

https://www.home.cern/

Skills: ReactJS, MaterialUI, NodeJS, Keycloak (Authentication), Openshift, Docker

Tech Explorations

Individual contractor (Freelancer)

May 2016 - Jan 2020, Athens, Greece (Remote)

https://techexplorations.com/

I developed and supported 2 Udemy courses about making open-source drones:

Intralot

Software Engineer Trainee

Jul 2018 - Oct 2018, Athens, Greece

https://www.intralot.com/

Skills: Rest APIs, NodeJS, MochaJS, Unit testing, istanbulJS code coverage reporter

NKUA - National and Kapodistrian University of Athens

Teaching Assistant

Oct 2017 - Jan 2018 and Oct 2018 - Feb 2019, Athens, Greece

https://www.di.uoa.gr/

Skills: Lab Teaching assistant for:

  • Programming courses in C, C++, Java
  • Linux basics
  • Efficient Algorithm Design and Implementation

Education

DTU - Technical University of Denmark, Copenhagen, Denmark

MSc in Computer Science and Engineering, specialization Computer Security

Aug 2021 - Jul 2023

GPA: 10/12

  • Data Security
  • Foundations of distributed systems
  • Network Security
  • Biometric Systems
  • Modern Cryptology
  • Computer Security Forensics
  • Current Topics in System Security

Ulster University, Coleraine, Northern Ireland (UK)

Erasmus + Exchange student in Computer Science

Spring 2018

GPA: 7/10

  • Games Technologies
  • Internet of Things
  • Full Stack Web & App Development

NKUA - National and Kapodistrian University of Athens, Athens, Greece

BSc in Informatics and Telecommunications, specialization Software Engineering

Sep 2015 - Jul 2021

GPA: 7.48/10

  • Discrete Mathematics
  • Calculus I & II
  • Probability and Statistics
  • Number Theory
  • Algorithms and Complexity
  • Data Structures and Programming Techniques
  • Design and Applications of Databases
  • Implementation of Database Management Systems
  • Computer Architecture I
  • Programming in C
  • Object-Oriented Programming
  • Operating Systems
  • Systems Programming
  • Software Development for Algorithmic Problems
  • Theory of Computation
  • Artificial Intelligence (in Python)