https://blog.xpdbk.com/en/categories/firmware-analysis/Recent content in Firmware analysis on LEl_FENG BlogHugo -- gohugo.ioenLEl_FENG CopyrightThu, 17 Aug 2023 17:31:31 +0700https://blog.xpdbk.com/en/posts/laosat1-gujian/Thu, 17 Aug 2023 17:31:31 +0700https://blog.xpdbk.com/en/posts/laosat1-gujian/<img src="https://blog.xpdbk.com/en/posts/laosat1-gujian/waiguan.webp" alt="Featured image of post LAOSAT set-top box firmware extraction backup and firmware structure research" /><blockquote> <p><strong>TL;DR / [Geek Summary]:</strong></p> <ul> <li>Firmware Deconstruction: Extracted firmware from a LAOSAT satellite STB, revealing a Linux kernel base and 7ZIP compatibility.</li> <li>Asset Discovery: Successfully isolated UI theme assets, providing raw material for deeper dives into the system logic.</li> <li>Geek Spirit: In the absence of documentation, using binary analysis and filesystem identification to map a closed hardware ecosystem.</li> </ul> </blockquote> <blockquote> <p>Firmware download is in the link below</p> <p><a class="link" href="https://pvphack.lanzoup.com/iWHnN2rtvhxa" target="_blank" rel="noopener" >https://pvphack.lanzoup.com/iWHnN2rtvhxa</a> <span style="white-space: nowrap;"><svg width=".7em" height=".7em" viewBox="0 0 21 21" xmlns="http://www.w3.org/2000/svg"> <path d="m13 3l3.293 3.293l-7 7l1.414 1.414l7-7L21 11V3z" fill="currentColor" /> <path d="M19 19H5V5h7l-2-2H5c-1.103 0-2 .897-2 2v14c0 1.103.897 2 2 2h14c1.103 0 2-.897 2-2v-5l-2-2v7z" fill="currentColor"> </svg></span> Extraction password: hr29</p> </blockquote> <p><img src="https://blog.xpdbk.com/en/posts/laosat1-gujian/waiguan.webp" width="259" height="194" srcset="https://blog.xpdbk.com/en/posts/laosat1-gujian/waiguan_hu90fd45139fc34bf99f1878e8641f8ba2_9836_480x0_resize_q75_h2_box_2.webp 480w, https://blog.xpdbk.com/en/posts/laosat1-gujian/waiguan_hu90fd45139fc34bf99f1878e8641f8ba2_9836_1024x0_resize_q75_h2_box_2.webp 1024w" loading="lazy" alt="waiguan.webp" class="gallery-image" data-flex-grow="133" data-flex-basis="320px" ></p> <p>I have nothing to do, so I extracted a firmware, but I couldn&rsquo;t extract it. It seems that there is only the theme in other places.</p> <p>For those who want to study it, I found that this is a compressed file that can be opened with 7ZIP. . . But the kernel is Linux</p> <p><img src="https://blog.xpdbk.com/en/posts/laosat1-gujian/1.webp" width="964" height="361" srcset="https://blog.xpdbk.com/en/posts/laosat1-gujian/1_hua8b14a396590a4e44545b9fcf3347ee9_25172_480x0_resize_q75_h2_box_2.webp 480w, https://blog.xpdbk.com/en/posts/laosat1-gujian/1_hua8b14a396590a4e44545b9fcf3347ee9_25172_1024x0_resize_q75_h2_box_2.webp 1024w" loading="lazy" alt="1.webp" class="gallery-image" data-flex-grow="267" data-flex-basis="640px" ></p>