好的，我现在需要帮用户总结一篇文章的内容，控制在100字以内。首先，我得仔细阅读用户提供的文章内容。看起来这篇文章主要讲的是作者在使用ffuf工具时的经历，最初以为它只是一个目录爆破工具，但在实践中发现了更多用途。 文章提到了一个CTF实验室，题目是“虚拟主机基础”，里面有四个旗帜。作者通过ffuf进行虚拟主机模糊测试，结果发现了隐藏的基础设施和四个旗帜。这改变了他对信息收集的看法。 接下来，我需要将这些要点浓缩到100字以内。重点包括：ffuf的功能扩展、虚拟主机模糊测试、发现隐藏基础设施和四个旗帜，以及思维方式的转变。 可能会遇到的问题是如何简洁地表达这些内容而不遗漏关键点。比如，“思维方式的转变”可以简化为“改变了对信息收集的看法”。 最后，确保语言流畅自然，避免使用复杂的词汇或结构。 </think> 文章讲述了作者通过ffuf工具进行虚拟主机模糊测试，在HackingHub.io的CTF实验室中发现隐藏基础设施和四个旗帜的经历，展示了ffuf功能的多样性，并改变了作者对信息收集的认识。 2025-12-19 07:37:30 Author: infosecwriteups.com(查看原文) 阅读量:2 收藏
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I used to think FFuf was just another gobuster.
Faster, sure. Cleaner output, maybe.
But still just a directory brute-forcer.
That belief died the day I touched this lab.
What started as a simple practice room on HackingHub.io quietly turned into a lesson on how much attack surface we miss when we limit ffuf to directories.
This is the story of how virtual host fuzzing unfolded, four flags, hidden infrastructure, and a completely different way of thinking about recon.
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The Setup
The lab was titled "Virtual Host Basics."
Nothing fancy. No scary description. Just four flags waiting somewhere. First, it looks like a normal ffuf tutorial, vhost fuzzing for me, but when I looked at the patterns, I was amazed.
The target was simple enough: https://epsilon.ctfio.com/
I opened it in the browser. A static page stared back at me. Nothing interesting. So I did what most of us do. I opened a terminal.
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