http://www.adhikariashwin0.com.np/tags/ehaxctf/ Recent content in Ehaxctf on the008Killer Hugo en Tue, 03 Mar 2026 00:00:00 +0000 http://www.adhikariashwin0.com.np/writeups/ctfs/ehaxctf/ Tue, 03 Mar 2026 00:00:00 +0000 http://www.adhikariashwin0.com.np/writeups/ctfs/ehaxctf/ <h2 id="let-the-penguin-live">let-the-penguin-live</h2> <p><img alt="penguin" loading="lazy" src="http://www.adhikariashwin0.com.np/writeups/ctfs/ehaxctf/assets/penguin.png"></p> <h3 id="analysis">Analysis</h3> <ul> <li>Exiftool</li> </ul> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">ExifTool Version Number : 13.36 </span></span><span class="line"><span class="cl">File Name : challenge.mkv </span></span><span class="line"><span class="cl">Directory : . </span></span><span class="line"><span class="cl">File Size : 8.1 MB </span></span><span class="line"><span class="cl">File Modification Date/Time : 2026:02:27 13:38:54-05:00 </span></span><span class="line"><span class="cl">File Access Date/Time : 2026:03:03 04:20:50-05:00 </span></span><span class="line"><span class="cl">File Inode Change Date/Time : 2026:02:27 14:09:14-05:00 </span></span><span class="line"><span class="cl">File Permissions : -rw-rw-r-- </span></span><span class="line"><span class="cl">File Type : MKV </span></span><span class="line"><span class="cl">File Type Extension : mkv </span></span><span class="line"><span class="cl">MIME Type : video/x-matroska </span></span><span class="line"><span class="cl">EBML Version : <span class="m">1</span> </span></span><span class="line"><span class="cl">EBML Read Version : <span class="m">1</span> </span></span><span class="line"><span class="cl">Doc Type : matroska </span></span><span class="line"><span class="cl">Doc Type Version : <span class="m">4</span> </span></span><span class="line"><span class="cl">Doc Type Read Version : <span class="m">2</span> </span></span><span class="line"><span class="cl">Timecode Scale : <span class="m">1</span> ms </span></span><span class="line"><span class="cl">Title : Penguin </span></span><span class="line"><span class="cl"> &lt;SNIP&gt; </span></span><span class="line"><span class="cl">Codec ID : A_FLAC </span></span><span class="line"><span class="cl">Track Type : Audio </span></span><span class="line"><span class="cl">Audio Channels : <span class="m">2</span> </span></span><span class="line"><span class="cl"> &lt;SNIP&gt; </span></span><span class="line"><span class="cl">Compatible Brands : isomiso2avc1mp41 </span></span><span class="line"><span class="cl">Comment : EH4X<span class="o">{</span>k33p_try1ng<span class="o">}</span> </span></span><span class="line"><span class="cl"> &lt;SNIP&gt; </span></span></code></pre></div><p>we have a Comment <code>EH4X{k33p_try1ng}</code> and 2 audio channels.</p>