Julian X.

Mexico City, Mexico · Cyber Security Analyst · PEKXEL

36 followers

About

Cybersecurity analyst with a strong software engineering background, specializing in incident investigation, threat detection, and log analysis. Experienced in investigating web, network, and malware attacks using frameworks like MITRE ATT&CK and NIST.

Skills

  • Splunk
  • Wireshark
  • TCP/IP
  • Suricata
  • Sysmon
  • Python
  • Bash
  • Nmap
  • Metasploit
  • Burp Suite

32 skills in total

Licenses & Certifications

  • Python for Cybersecurity

    INFOSEC

    Issued Jul 2025

  • Sustainable Testing With Typescript

    Software Crafters Academy

    Issued Feb 2024

  • Advanced Python Scripting for Cybersecurity

    INFOSEC

    Issued Jul 2025

6 certifications in total

Experience

  • Full Stack Web Developer

    PEKXEL

    Jan 2020 — Present

    Puebla, México

  • Full Stack Web Developer

    Contacto Mundial

    Jan 2016 — Jan 2020

    Puebla, México

Recent posts

🐍 Learning Python through a cybersecurity lens. Now that you know how to interact with Python through the console, it's time to learn how to make your output more readable and organized to create cleaner, more visually appealing reports.

https://jjeuribe.github.io/posts/python-for-cybersecurity-formatting-console-output/

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🐍Learning Python through a cybersecurity lens. In this article, we explore another fundamental yet often-overlooked aspect of building useful security tools: console input and output. https://jjeuribe.github.io/posts/python-for-cybersecurity-console-input-and-output/

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🐍Learning Python through a cybersecurity lens. In this article, we start with one of the fundamentals: variables.

https://jjeuribe.github.io/posts/python-for-cybersecurity-understanding-variables/

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In this final challenge, you’re given an AWS access key with limited (mostly read-only) permissions. No admin powers, no obvious misconfigurations, this time just pure old-school enumeration.

Your job is to explore the account, follow the clues, and pay attention to the details. The more you dig, the more patterns will start to show up. Observation will be your most powerful weapon here. Alright, enough talk, here’s the challenge https://jjeuribe.github.io/posts/aws-pentesting-flaws-level-6-when-the-gateway-finally-falls/

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In this level, you’ll deal with a proxy feature that’s letting an attacker to fetch external resources on behalf of one of your EC2 instances. This may not look dangerous at first, but under the hood it opens the door to a very well-known vulnerability. https://jjeuribe.github.io/posts/aws-pentesting-flaws-level-5-exploiting-aws-imds-via-ssrf/

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View Julian X.'s profile on Cyberr