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07601
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‎07601.html

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<!doctype html>
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<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7" lang=""> <![endif]-->
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<!--[if IE 7]> <html class="no-js lt-ie9 lt-ie8" lang=""> <![endif]-->
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<!--[if IE 8]> <html class="no-js lt-ie9" lang=""> <![endif]-->
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<!--[if gt IE 8]><!--> <html class="no-js" lang=""> <!--<![endif]-->
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<title>skaushik.co</title>
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<meta name="description" content="">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<link href="https://fonts.googleapis.com/css?family=Open+Sans:300,400,600,700,800" rel="stylesheet">
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<link rel="apple-touch-icon" href="apple-touch-icon.png">
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<link rel="stylesheet" href="css/bootstrap.min.css">
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<link rel="stylesheet" href="css/bootstrap-theme.min.css">
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<link rel="stylesheet" href="css/fontAwesome.css">
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<link rel="stylesheet" href="css/tooplate-style.css">
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<script src="js/vendor/modernizr-2.8.3-respond-1.4.2.min.js"></script>
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</head>
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<body>
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<nav>
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<ul>
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<li><a href="/">Home</a></li>
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</ul>
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</nav>
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<section class="heading-bg">
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<div>
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<div class="line-dec"></div>
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<h1>07601</h1>
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<div class="line-dec"></div>
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<h3>Forensic</h3>
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</div>
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</section>
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<section class="about">
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<div class="mainquestion">
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<h3><a href="https://mega.nz/#!CXYXBQAK!6eLJSXvAfGnemqWpNbLQtOHBvtkCzA7-zycVjhHPYQQ">https://mega.nz/#!CXYXBQAK!6eLJSXvAfGnemqWpNbLQtOHBvtkCzA7-zycVjhHPYQQ</a> I think I lost my flag in there. Hopefully, it won't get attacked...</h3>
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</div>
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<div class="answer">
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<h4>As the <a href="https://ctflearn.com/challenge/97">question</a> gives us a mega link so we download that file/directory and we get a file called "AGT.png".
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So we examine the file first with opening that file but that file does not open so examine file we use <strong>file</strong> command
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</h4>
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<div class="code">file AGT.png</div>
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<h4>Now file shows jpeg format then we change the extension then open and voila it opened but nothing interesting so we check for any metadata with <strong>identify</strong>
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command in linux</h4>
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<div class="code">identify -verbose AGT.jpeg</div>
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<h4>But nothing so we check for any hidden files/directory with <strong>binwalk</strong>.</h4>
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<div class="code">binwalk AGT.jpeg</div>
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<h4>We see some folder hidden inside so we extract these folder</h4>
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<div class="code">binwalk -e AGT.jpeg</div>
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<h4>We get some directory as Secret Stuff...->Don't Open This...->I Warned You .jpeg so we check this file also with <strong>file</strong> command and
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we get a data file. You can check this data file with either <strong>strings</strong> or <strong>xxd</strong>
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strings return a text representation of file and xxd also shows hex dump</h4>
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<div class="code">xxd I\ Warned\ You.jpeg</div>
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<h4>Now you search for flag or CTF using vim or any text editor and lucky you get one.</h4>
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</div>
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</section>
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<footer>
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<div class="container">
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<div class="row">
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<div class="col-md-12">
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<div class="join">Want to Contribute Join us on Github</div>
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<a target="_blank" href="https://github.com/sarthak212/ctf-one/issues/2"><i class="fa fa-github i"></i></a>
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<p>Copyright &copy; skaushik.co
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</div>
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</div>
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</div>
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</footer>
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<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
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<script>window.jQuery || document.write('<script src="js/vendor/jquery-1.11.2.min.js"><\/script>')</script>
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<script src="js/vendor/bootstrap.min.js"></script>
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<script src="js/plugins.js"></script>
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<script src="js/main.js"></script>
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</body>
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</html>

‎css/tooplate-style.css

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.note h4{
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color: rgb(14, 33, 39);
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font-style: italic;
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}
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.code{
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background-color: rgb(68, 66, 66);
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color: white;
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font-size: 1.9rem;
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padding: 15px;
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font-weight: 600;
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margin: 15px 0px;
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}

‎home.html

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</div>
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<div class="col-md-3 col-sm-6 project-item mix forensic">
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<div class="image">
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<a target="_blank" href="img/05-big-item.jpg"><img src="img/05-item.jpg"></a>
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<a target="_blank" href="07601.html"><img src="img/05-item.jpg"></a>
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</div>
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<div class="text">
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<span>ctflearn</span>

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