php网站被挂木马后的修复方法总结
本文实例总结了php网站被挂木马后的修复方法。分享给大家供大家参考。具体方法如下：
在linux中我们可以使用命令来搜查木马文件,到代码安装目录执行下面命令
搜出来接近100条结果，这个结果列表很重要，木马都在里面，要一个一个文件打开验证是否是木马，如果是，马上删除掉
最后找到10个木马文件，存放在各种目录，都是php webshell，功能很齐全，用base64编码
如果你在windows中查找目录直接使用windows文件搜索就可以了，可以搜索eval或最近修改文件，然后如果是dedecms我们要查看最新dedecms漏洞呀然后修补。
下面给个php木马查找工具,直接放到你站点根目录
/**************php web木马扫描器************************/
/* [+] 作者: alibaba */
/* [+] msn: weeming21@hotmail.com */
/* [+] 首发: t00ls.net , 转载请注明t00ls */
/* [+] 版本: v1.0 */
/* [+] 功能: web版php木马扫描工具*/
/* [+] 注意: 扫描出来的文件并不一定就是后门, */
/* 请自行判断、审核、对比原文件。*/
/* 如果你不确定扫出来的文件是否为后门，*/
/* 欢迎你把该文件发给我进行分析。*/
/*******************************************************/
ob_start();
set_time_limit(0);
$username = "t00ls"; //设置用户名
$password = "t00ls"; //设置密码
$md5 = md5(md5($username).md5($password));
$version = "php web木马扫描器v1.0";
php web 木马扫描器
$realpath = realpath('./');
$selfpath = $_server['php_self'];
$selfpath = substr($selfpath, 0, strrpos($selfpath,'/'));
define('realpath', str_replace('//','/',str_replace('\','/',substr($realpath, 0, strlen($realpath) - strlen($selfpath)))));
define('myfile', basename(__file__));
define('mypath', str_replace('\', '/', dirname(__file__)).'/');
define('myfullpath', str_replace('\', '/', (__file__)));
define('host', "http://".$_server['http_host']);
?>
<html>
<head>
<title><?php echo $version?></title>
<meta http-equiv="content-type" content="text/html; charset=gb2312" />
<style>
body{margin:0px;}
body,td{font: 12px arial,tahoma;line-height: 16px;}
a {color: #00f;text-decoration:underline;}
a:hover{color: #f00;text-decoration:none;}
.alt1 td{border-top:1px solid #fff;border-bottom:1px solid #ddd;background:#f1f1f1;padding:5px 10px 5px 5px;}
.alt2 td{border-top:1px solid #fff;border-bottom:1px solid #ddd;background:#f9f9f9;padding:5px 10px 5px 5px;}
.focus td{border-top:1px solid #fff;border-bottom:1px solid #ddd;background:#ffffaa;padding:5px 10px 5px 5px;}
.head td{border-top:1px solid #fff;border-bottom:1px solid #ddd;background:#e9e9e9;padding:5px 10px 5px 5px;font-weight:bold;}
.head td span{font-weight:normal;}
</style>
</head>
<body>
<?php
if(!(isset($_cookie['t00ls']) && $_cookie['t00ls'] == $md5) && !(isset($_post['username']) && isset($_post['password']) && (md5(md5($_post['username']).md5($_post['password']))==$md5)))
{
echo '<form id="frmlogin" name="frmlogin" method="post" action="">用户名: <input type="text" name="username" id="username" /> 密码: <input type="password" name="password" id="password" /> <input type="submit" name="btnlogin" id="btnlogin" value="登陆" /></form>';
}
elseif(isset($_post['username']) && isset($_post['password']) && (md5(md5($_post['username']).md5($_post['password']))==$md5))
{
setcookie("t00ls", $md5, time()+60*60*24*365,"/");
echo "登陆成功！";
header( 'refresh: 1; url='.myfile.'?action=scan' );
exit();
}
else
{
setcookie("t00ls", $md5, time()+60*60*24*365,"/");
$setting = getsetting();
$action = isset($_get['action'])?$_get['action']:"";
if($action=="logout")
{
setcookie ("t00ls", "", time() - 3600);
header("location: ".myfile);
exit();
}
if($action=="download" && isset($_get['file']) && trim($_get['file'])!="")
{
$file = $_get['file'];
ob_clean();
if (@file_exists($file)) {
header("content-type: application/octet-stream");
header("content-disposition: filename="".basename($file).""");
echo file_get_contents($file);
}
exit();
}
?>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tbody><tr class="head">
<td><?php echo $_server['server_addr']?><span style="float: right; font-weight:bold;"><?php echo "<a href='http://www.t00ls.net/'>$version</a>"?></span></td>
</tr>
<tr class="alt1">
<td><span style="float: right;"><?=date("y-m-d h:i:s",mktime())?></span>
<a href="?action=scan">扫描</a> |
<a href="?action=setting">设定</a> |
<a href="?action=logout">登出</a>
</td>
</tr>
</tbody></table>
<br>
<?php
if($action=="setting")
{
if(isset($_post['btnsetting']))
{
$ssetting = array();
$ssetting['user']=isset($_post['checkuser'])?$_post['checkuser']:"php | php? | phtml";
$ssetting['all']=isset($_post['checkall'])&&$_post['checkall']=="on"?1:0;
$ssetting['hta']=isset($_post['checkhta'])&&$_post['checkhta']=="on"?1:0;
setcookie("t00ls_s", base64_encode(serialize($ssetting)), time()+60*60*24*365,"/");
echo "设置完成！";
header( 'refresh: 1; url='.myfile.'?action=setting' );
exit();
}
?>
<form name="frmsetting" method="post" action="?action=setting">
<fieldset style="width:400px">
<legend>扫描设定</legend>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="60">文件后缀:</td>
<td width="300"><input type="text" name="checkuser" id="checkuser" style="width:300px;" value="<?php echo $setting['user']?>"></td>
</tr>
<tr>
<td><label for="checkall">所有文件</label></td>
<td><input type="checkbox" name="checkall" id="checkall" <?php if($setting['all']==1) echo "checked"?>></td>
</tr>
<tr>
<td><label for="checkhta">设置文件</label></td>
<td><input type="checkbox" name="checkhta" id="checkhta" <?php if($setting['hta']==1) echo "checked"?>></td>
</tr>
<tr>
<td> </td>
<td>
<input type="submit" name="btnsetting" id="btnsetting" value="提交">
</td>
</tr>
</table>
</fieldset>
</form>
<?php
}
else
{
$dir = isset($_post['path'])?$_post['path']:mypath;
$dir = substr($dir,-1)!="/"?$dir."/":$dir;
?>
<form name="frmscan" method="post" action="">
<table width="100%%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="35" style="vertical-align:middle; padding-left:5px;">扫描路径:</td>
<td width="690">
<input type="text" name="path" id="path" style="width:600px" value="<?php echo $dir?>">
<input type="submit" name="btnscan" id="btnscan" value="开始扫描"></td>
</tr>
</table(www.jb51.net)>
</form>
<?php
if(isset($_post['btnscan']))
{
$start=mktime();
$is_user = array();
$is_ext = "";
$list = "";
if(trim($setting['user'])!="")
{
$is_user = explode("|",$setting['user']);
if(count($is_user)>0)
{
foreach($is_user as $key=>$value)
$is_user[$key]=trim(str_replace("?","(.)",$value));
$is_ext = "(.".implode("($|.))|(.",$is_user)."($|.))";
}
}
if($setting['hta']==1)
{
$is_hta=1;
$is_ext = strlen($is_ext)>0?$is_ext."|":$is_ext;
$is_ext.="(^.htaccess$)";
}
if($setting['all']==1 || (strlen($is_ext)==0 && $setting['hta']==0))
{
$is_ext="(.+)";
}
$php_code = getcode();
if(!is_readable($dir))
$dir = mypath;
$count=$scanned=0;
scan($dir,$is_ext);
$end=mktime();
$spent = ($end - $start);
?>
<div style="padding:10px; background-color:#ccc">扫描: <?php echo $scanned?> 文件| 发现: <?php echo $count?> 可疑文件| 耗时: <?php echo $spent?> 秒</div>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr class="head">
<td width="15" align="center">no.</td>
<td width="48%">文件</td>
<td width="12%">更新时间</td>
<td width="10%">原因</td>
<td width="20%">特征</td>
<td>动作</td>
</tr>
<?php echo $list?>
</table>
<?php
}
}
}
ob_flush();
?>
</body>
</html>
<?php
function scan($path = '.',$is_ext){
global $php_code,$count,$scanned,$list;
$ignore = array('.', '..' );
$replace=array(" ","n","r","t");
$dh = @opendir( $path );
while(false!==($file=readdir($dh))){
if( !in_array( $file, $ignore ) ){
if( is_dir( "$path$file" ) ){
scan("$path$file/",$is_ext);
} else {
$current = $path.$file;
if(myfullpath==$current) continue;
if(!preg_match("/$is_ext/i",$file)) continue;
if(is_readable($current))
{
$scanned++;
$content=file_get_contents($current);
$content= str_replace($replace,"",$content);
foreach($php_code as $key => $value)
{
if(preg_match("/$value/i",$content))
{
$count++;
$j = $count % 2 + 1;
$filetime = date('y-m-d h:i:s',filemtime($current));
$reason = explode("->",$key);
$url = str_replace(realpath,host,$current);
preg_match("/$value/i",$content,$arr);
$list.="
<tr class='alt$j' onmouseover='this.classname="focus";' onmouseout='this.classname="alt$j";'>
<td>$count</td>
<td><a href='$url' target='_blank'>$current</a></td>
<td>$filetime</td>
<td><font color=red>$reason[0]</font></td>
<td><font color=#090>$reason[1]</font></td>
<td><a href='?action=download&file=$current' target='_blank'>下载</a></td>
</tr>";
//echo $key . "-" . $path . $file ."(" . $arr[0] . ")" ."<br />";
//echo $path . $file ."<br />";
break;
}
}
}
}
}
}
closedir( $dh );
}
function getsetting()
{
$ssetting = array();
if(isset($_cookie['t00ls_s']))
{
$ssetting = unserialize(base64_decode($_cookie['t00ls_s']));
$ssetting['user']=isset($ssetting['user'])?$ssetting['user']:"php | php? | phtml | shtml";
$ssetting['all']=isset($ssetting['all'])?intval($ssetting['all']):0;
$ssetting['hta']=isset($ssetting['hta'])?intval($ssetting['hta']):1;
}
else
{
$ssetting['user']="php | php? | phtml | shtml";
$ssetting['all']=0;
$ssetting['hta']=1;
setcookie("t00ls_s", base64_encode(serialize($ssetting)), time()+60*60*24*365,"/");
}
return $ssetting;
}
function getcode()
{
return array(
'后门特征->cha88.cn'=>'cha88.cn',
'后门特征->c99shell'=>'c99shell',
'后门特征->phpspy'=>'phpspy',
'后门特征->scanners'=>'scanners',
'后门特征->cmd.php'=>'cmd.php',
'后门特征->str_rot13'=>'str_rot13',
'后门特征->webshell'=>'webshell',
'后门特征->egy_spider'=>'egy_spider',
'后门特征->tools88.com'=>'tools88.com',
'后门特征->secforce'=>'secforce',
'后门特征->eval("?>'=>'eval(('|")?>',
'可疑代码特征->system('=>'system(',
'可疑代码特征->passthru('=>'passthru(',
'可疑代码特征->shell_exec('=>'shell_exec(',
'可疑代码特征->exec('=>'exec(',
'可疑代码特征->popen('=>'popen(',
'可疑代码特征->proc_open'=>'proc_open',
'可疑代码特征->eval($'=>'eval(('|"|s*)\$',
'可疑代码特征->assert($'=>'assert(('|"|s*)\$',
'危险mysql代码->returns string soname'=>'returnsstringsoname',
'危险mysql代码->into outfile'=>'intooutfile',
'危险mysql代码->load_file'=>'select(s+)(.*)load_file',
'加密后门特征->eval(gzinflate('=>'eval(gzinflate(',
'加密后门特征->eval(base64_decode('=>'eval(base64_decode(',
'加密后门特征->eval(gzuncompress('=>'eval(gzuncompress(',
'加密后门特征->eval(gzdecode('=>'eval(gzdecode(',
'加密后门特征->eval(str_rot13('=>'eval(str_rot13(',
'加密后门特征->gzuncompress(base64_decode('=>'gzuncompress(base64_decode(',
'加密后门特征->base64_decode(gzuncompress('=>'base64_decode(gzuncompress(',
'一句话后门特征->eval($_'=>'eval(('|"|s*)\$_(post|get|request|cookie)',
'一句话后门特征->assert($_'=>'assert(('|"|s*)\$_(post|get|request|cookie)',
'一句话后门特征->require($_'=>'require(('|"|s*)\$_(post|get|request|cookie)',
'一句话后门特征->require_once($_'=>'require_once(('|"|s*)\$_(post|get|request|cookie)',
'一句话后门特征->include($_'=>'include(('|"|s*)\$_(post|get|request|cookie)',
'一句话后门特征->include_once($_'=>'include_once(('|"|s*)\$_(post|get|request|cookie)',
'一句话后门特征->call_user_func("assert"'=>'call_user_func(("|')assert("|')',
'一句话后门特征->call_user_func($_'=>'call_user_func(('|"|s*)\$_(post|get|request|cookie)',
'一句话后门特征->$_post/get/request/cookie[?]($_post/get/request/cookie[?]'=>'$_(post|get|request|cookie)[([^]]+)](('|"|s*)\$_(post|get|request|cookie)[',
'一句话后门特征->echo(file_get_contents($_post/get/request/cookie'=>'echo(file_get_contents(('|"|s*)\$_(post|get|request|cookie)',
'上传后门特征->file_put_contents($_post/get/request/cookie,$_post/get/request/cookie'=>'file_put_contents(('|"|s*)\$_(post|get|request|cookie)[([^]]+)],('|"|s*)\$_(post|get|request|cookie)',
'上传后门特征->fputs(fopen("?","w"),$_post/get/request/cookie['=>'fputs(fopen((.+),('|")w('|")),('|"|s*)\$_(post|get|request|cookie)[',
'.htaccess插马特征->sethandler application/x-httpd-php'=>'sethandlerapplication/x-httpd-php',
'.htaccess插马特征->php_value auto_prepend_file'=>'php_valueauto_prepend_file',
'.htaccess插马特征->php_value auto_append_file'=>'php_valueauto_append_file'
);
}
?>
希望本文所述对大家基于php的网站安全建设有所帮助。