--- title: SolarDisruption Lab Writeup (CyberDefenders) | daily.dev description: A step-by-step walkthrough of the SolarDisruption CTF lab on CyberDefenders, where an analyst investigates a cyberattack on industrial solar panel systems. The... canonical: https://daily.dev/posts/solardisruption-lab-writeup-cyberdefenders--jyuqhjlfx twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: SolarDisruption Lab Writeup (CyberDefenders) | daily.dev og:description: A step-by-step walkthrough of the SolarDisruption CTF lab on CyberDefenders, where an analyst investigates a cyberattack on industrial solar panel systems. The... og:url: https://daily.dev/posts/solardisruption-lab-writeup-cyberdefenders--jyuqhjlfx og:image: https://api.daily.dev/og/posts/JYuqhjlfX.png og:image:alt: SolarDisruption Lab Writeup (CyberDefenders) og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # SolarDisruption Lab Writeup (CyberDefenders) **[InfoSec Write-ups](https://daily.dev/sources/infosecwriteups)** · 8 min read · 0 upvotes · 0 comments ## Summary A step-by-step walkthrough of the SolarDisruption CTF lab on CyberDefenders, where an analyst investigates a cyberattack on industrial solar panel systems. The writeup covers identifying Modbus protocol traffic in a packet capture, tracing a network scan from an attacker IP, discovering host enumeration and port scanning activity, analyzing HTTP traffic to find OpenPLC login credentials and a changed password, mapping PLC I/O points, and calculating system downtime caused by repeated Modbus 'Write Single Coil' commands targeting emergency stop coils. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Raining Dinosaurs — Storm-2603 Lab Writeup \[CyberDefenders\]](https://daily.dev/posts/raining-dinosaurs-storm-2603-lab-writeup-cyberdefenders--vdbyht8jx) · InfoSec Write-ups · 0 upvotes · 0 comments --- Tags: [#wireshark](https://daily.dev/tags/wireshark) [View this post on daily.dev](https://daily.dev/posts/solardisruption-lab-writeup-cyberdefenders--jyuqhjlfx) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"SolarDisruption Lab Writeup (CyberDefenders)","url":"https://daily.dev/posts/solardisruption-lab-writeup-cyberdefenders--jyuqhjlfx","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/solardisruption-lab-writeup-cyberdefenders--jyuqhjlfx"},"datePublished":"2026-06-09T09:45:42.302Z","dateModified":"2026-06-09T09:46:10.374Z","description":"A step-by-step walkthrough of the SolarDisruption CTF lab on CyberDefenders, where an analyst investigates a cyberattack on industrial solar panel systems. 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