php網站被掛木馬修復是次要的最要的是怎麼修復之後不再讓木馬再注入到你的網站才是重要的，下面我來總結一下php網站被掛木馬修復與之後防止網站再次給掛木馬的方法。
在linux中我們可以使用命令來搜查木馬文件,到代碼安裝目錄執行下面命令
代碼如下 復制代碼find ./ -iname "*.php" | xargs grep -H -n "eval(base64_decode"
搜出來接近100條結果，這個結果列表很重要，木馬都在裡面，要一個一個文件打開驗證是否是木馬，如果是，馬上刪除掉
最後找到10個木馬文件，存放在各種目錄，都是php webshell，功能很齊全，用base64編碼
如果你在windows中查找目錄直接使用windows文件搜索就可以了，可以搜索eval或最近修改文件，然後如果是dedecms我們要查看最新dedecms漏洞呀然後修補。
下面給個php木馬查找工具,直接放到你站點根目錄
<?php
/**************PHP Web木馬掃描器************************/
/* [+] 作者: alibaba */
/* [+] QQ: 1499281192 * www.bKjia.c0m/
/* [+] MSN: [email protected] */
/* [+] 首發: t00ls.net , 轉載請注明t00ls */
/* [+] 版本: v1.0 */
/* [+] 功能: web版php木馬掃描工具*/
/* [+] 注意: 掃描出來的文件並不一定就是後門, */
/* 請自行判斷、審核、對比原文件。*/
/* 如果你不確定掃出來的文件是否為後門，*/
/* 歡迎你把該文件發給我進行分析。*/
/*******************************************************/
ob_start();
set_time_limit(0);
$username = "t00ls"; //設置用戶名
$password = "t00ls"; //設置密碼
$md5 = md5(md5($username).md5($password));
$version = "PHP Web木馬掃描器v1.0";
PHP Web 木馬掃描器
$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="">用戶名: <input type="text" name="username" id="username" /> 密碼: <input type="password" name="password" id="password" /> <input type="submit" name="btnLogin" id="btnLogin" value="登陸" /></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 "登陸成功！";
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">掃描</a> |
<a href="?action=setting">設定</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 "設置完成！";
header( 'refresh: 1; url='.MYFILE.'?action=setting' );
exit();
}
?>
<form name="frmSetting" method="post" action="?action=setting">
<FIELDSET style="width:400px">
<LEGEND>掃描設定</LEGEND>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="60">文件後綴:</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">設置文件</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;">掃描路徑:</td>
<td width="690">
<input type="text" name="path" id="path" style="width:600px" value="<?php echo $dir?>">
<input type="submit" name="btnScan" id="btnScan" value="開始掃描"></td>
</tr>
</table>
</form>
<?php
if(isset($_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">掃描: <?php echo $scanned?> 文件| 發現: <?php echo $count?> 可疑文件| 耗時: <?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%">更新時間</td>
<td width="10%">原因</td>
<td width="20%">特征</td>
<td>動作</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'>下載</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 $Ssetting;
}
function getCode()
{
return array(
'後門特征->cha88.cn'=>'cha88.cn',
'後門特征->c99shell'=>'c99shell',
'後門特征->phpspy'=>'phpspy',
'後門特征->Scanners'=>'Scanners',
'後門特征->cmd.php'=>'cmd.php',
'後門特征->str_rot13'=>'str_rot13',
'後門特征->webshell'=>'webshell',
'後門特征->EgY_SpIdEr'=>'EgY_SpIdEr',
'後門特征->tools88.com'=>'tools88.com',
'後門特征->SECFORCE'=>'SECFORCE',
'後門特征->eval("?>'=>'eval(('|")?>',
'可疑代碼特征->system('=>'system(',
'可疑代碼特征->passthru('=>'passthru(',
'可疑代碼特征->shell_exec('=>'shell_exec(',
'可疑代碼特征->exec('=>'exec(',
'可疑代碼特征->popen('=>'popen(',
'可疑代碼特征->proc_open'=>'proc_open',
'可疑代碼特征->eval($'=>'eval(('|"|s*)\$',
'可疑代碼特征->assert($'=>'assert(('|"|s*)\$',
'危險MYSQL代碼->returns string soname'=>'returnsstringsoname',
'危險MYSQL代碼->into outfile'=>'intooutfile',
'危險MYSQL代碼->load_file'=>'select(s+)(.*)load_file',
'加密後門特征->eval(gzinflate('=>'eval(gzinflate(',
'加密後門特征->eval(base64_decode('=>'eval(base64_decode(',
'加密後門特征->eval(gzuncompress('=>'eval(gzuncompress(',
'加密後門特征->eval(gzdecode('=>'eval(gzdecode(',
'加密後門特征->eval(str_rot13('=>'eval(str_rot13(',
'加密後門特征->gzuncompress(base64_decode('=>'gzuncompress(base64_decode(',
'加密後門特征->base64_decode(gzuncompress('=>'base64_decode(gzuncompress(',
'一句話後門特征->eval($_'=>'eval(('|"|s*)\$_(POST|GET|REQUEST|COOKIE)',
'一句話後門特征->assert($_'=>'assert(('|"|s*)\$_(POST|GET|REQUEST|COOKIE)',
'一句話後門特征->require($_'=>'require(('|"|s*)\$_(POST|GET|REQUEST|COOKIE)',
'一句話後門特征->require_once($_'=>'require_once(('|"|s*)\$_(POST|GET|REQUEST|COOKIE)',
'一句話後門特征->include($_'=>'include(('|"|s*)\$_(POST|GET|REQUEST|COOKIE)',
'一句話後門特征->include_once($_'=>'include_once(('|"|s*)\$_(POST|GET|REQUEST|COOKIE)',
'一句話後門特征->call_user_func("assert"'=>'call_user_func(("|')assert("|')',
'一句話後門特征->call_user_func($_'=>'call_user_func(('|"|s*)\$_(POST|GET|REQUEST|COOKIE)',
'一句話後門特征->$_POST/GET/REQUEST/COOKIE[?]($_POST/GET/REQUEST/COOKIE[?]'=>'$_(POST|GET|REQUEST|COOKIE)[([^]]+)](('|"|s*)\$_(POST|GET|REQUEST|COOKIE)[',
'一句話後門特征->echo(file_get_contents($_POST/GET/REQUEST/COOKIE'=>'echo(file_get_contents(('|"|s*)\$_(POST|GET|REQUEST|COOKIE)',
'上傳後門特征->file_put_contents($_POST/GET/REQUEST/COOKIE,$_POST/GET/REQUEST/COOKIE'=>'file_put_contents(('|"|s*)\$_(POST|GET|REQUEST|COOKIE)[([^]]+)],('|"|s*)\$_(POST|GET|REQUEST|COOKIE)',
'上傳後門特征->fputs(fopen("?","w"),$_POST/GET/REQUEST/COOKIE['=>'fputs(fopen((.+),('|")w('|")),('|"|s*)\$_(POST|GET|REQUEST|COOKIE)[',
'.htaccess插馬特征->SetHandler application/x-httpd-php'=>'SetHandlerapplication/x-httpd-php',
'.htaccess插馬特征->php_value auto_prepend_file'=>'php_valueauto_prepend_file',
'.htaccess插馬特征->php_value auto_append_file'=>'php_valueauto_append_file'
);
}
?>
