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Marcelle Lee
Marcelle Lee

155 Followers

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Oct 25, 2020

CTF Challenge Walkthrough: Network Traffic Analysis, 12 Challenges in one PCAP

It has been a while since I have posted a walkthrough and I was just thinking about this network traffic analysis challenge since I was sharing it with a friend to use for a CTF for high school students. I will be using Wireshark for the walk-through. Another possible tool…

Cybersecurity

6 min read

CTF Challenge Walkthrough: Network Traffic Analysis, 12 Challenges in one PCAP
CTF Challenge Walkthrough: Network Traffic Analysis, 12 Challenges in one PCAP
Cybersecurity

6 min read


Jul 13, 2019

Kickstarting Your Career in Cybersecurity — Cyber Competitions

Author’s note: I originally published this article on LinkedIn. Since then, I have curated some competition-oriented resources on my Github site. Participating in cybersecurity competitions is an excellent way to learn new skills and to be introduced to different areas of focus in the field. There are several types of…

Cybersecurity

9 min read

Kickstarting Your Career in Cybersecurity — Cyber Competitions
Kickstarting Your Career in Cybersecurity — Cyber Competitions
Cybersecurity

9 min read


Jun 19, 2019

Roam If You Want To…Travel Tips from 43K Feet

Traveling can be an adventure. It can also be a nightmare. Learning how to best navigate (pun intended!) is an essential part of making your journey more enjoyable. I love traveling. And in fact, I’m writing this post from 43,000 feet. So far this year I’ve traveled in three continents…

Travel

5 min read

Roam If You Want To…Travel Tips from 43K Feet
Roam If You Want To…Travel Tips from 43K Feet
Travel

5 min read


May 19, 2019

CTF Challenge Walkthrough: Logical Operations

The challenge in this walkthrough asked for the result in decimal of 4A & 2D. Competitors typically attempt a mathematical addition operation on these numbers, but that will not achieve the desired result. …

Technology

3 min read

CTF Challenge Walkthrough: Logical Operations
CTF Challenge Walkthrough: Logical Operations
Technology

3 min read


Feb 27, 2019

CTF Challenge Walkthrough: Network Traffic Analysis, Rogue User

In this walkthrough, we will be analyzing a packet capture (PCAP) file, rogue_user.pcap. The challenge was to identify the rogue user that was created by the attacker. My tool of choice for this type of analysis is Wireshark. The first step I typically take when analyzing a PCAP is to…

Ctf

4 min read

CTF Challenge Walkthrough: Network Traffic Analysis, Rogue User
CTF Challenge Walkthrough: Network Traffic Analysis, Rogue User
Ctf

4 min read


Dec 17, 2018

CTF Challenge Walkthrough: File Metadata

This is the second in my series of cyber competition challenge walkthroughs. As I’ve mentioned previously, Capture the Flag (CTF) competitions are not just fun but also an excellent way to learn. In this post, we will step through finding metadata (data about data) in a file I created called…

Forensics

4 min read

CTF Challenge Walkthrough: File Metadata
CTF Challenge Walkthrough: File Metadata
Forensics

4 min read


Nov 25, 2018

CTF Challenge Walkthrough: Modified Header

Capture the Flag (CTF) cyber competitions are fun and an excellent way to learn. This is the first of a series of walkthroughs on how to tackle challenges. I built this forensics-oriented modified header challenge for use in a few competitions and workshops. The challenge features a file called change…

Ctf

4 min read

CTF Challenge Walkthrough: Modified Header
CTF Challenge Walkthrough: Modified Header
Ctf

4 min read


Nov 23, 2018

The Importance of Networking in Cybersecurity

The cybersecurity community is relatively small and very connected, and it is essential to grow and nurture a network. Who you develop relationships with can impact your chances in landing an internship, finding your dream job, or learning about a cool volunteer opportunity. It doesn’t matter what phase of your…

Networking

4 min read

The Importance of Networking in Cybersecurity
The Importance of Networking in Cybersecurity
Networking

4 min read


Nov 21, 2018

Getting Started in a Cybersecurity Career

There is tremendous interest in launching a career in cybersecurity. Figuring out where to start is the hard part. Search “cybersecurity” in Google and you will over 97 million results. This sea of information is completely overwhelming. …

Cybersecurity

2 min read

Getting Started in a Cybersecurity Career
Getting Started in a Cybersecurity Career
Cybersecurity

2 min read

Marcelle Lee

Marcelle Lee

155 Followers

Security researcher, educator and business owner in the field of cybersecurity. Advocate of diversity in tech. https://marcellelee.github.io

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