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
find./-iname"*.php"|xargsgrep-H-n"eval(base64_decode"
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phpwebshell，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
/**************PHPWeb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="PHPWeb木马扫描器v1.0";
PHPWeb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://".$_SERVER['HTTP_HOST']);
?>
<html>
<head>
<title><?phpecho$version?></title>
<metahttp-equiv="Content-Type"content="text/html;charset=gb2312"/>
<style>
body{margin:0px;}
body,td{font:12pxArial,Tahoma;line-height:16px;}
a{color:#00f;text-decoration:underline;}
a:hover{color:#f00;text-decoration:none;}
.alt1td{border-top:1pxsolid#fff;border-bottom:1pxsolid#ddd;background:#f1f1f1;padding:5px10px5px5px;}
.alt2td{border-top:1pxsolid#fff;border-bottom:1pxsolid#ddd;background:#f9f9f9;padding:5px10px5px5px;}
.focustd{border-top:1pxsolid#fff;border-bottom:1pxsolid#ddd;background:#ffffaa;padding:5px10px5px5px;}
.headtd{border-top:1pxsolid#fff;border-bottom:1pxsolid#ddd;background:#e9e9e9;padding:5px10px5px5px;font-weight:bold;}
.headtdspan{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'<formid="frmlogin"name="frmlogin"method="post"action="">用户名:<inputtype="text"name="username"id="username"/>密码:<inputtype="password"name="password"id="password"/><inputtype="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).""");
echofile_get_contents($file);
}
exit();
}
?>
<tableborder="0"cellpadding="0"cellspacing="0"width="100%">
<tbody><trclass="head">
<td><?phpecho$_SERVER['SERVER_ADDR']?><spanstyle="float:right;font-weight:bold;"><?phpecho"<ahref='http://www.t00ls.net/'>$version</a>"?></span></td>
</tr>
<trclass="alt1">
<td><spanstyle="float:right;"><?=date("Y-m-dH:i:s",mktime())?></span>
<ahref="?action=scan">扫描</a>|
<ahref="?action=setting">设定</a>|
<ahref="?action=logout">登出</a>
</td>
</tr>
</tbody></table>
<br>
<?php
if($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();
}
?>
<formname="frmSetting"method="post"action="?action=setting">
<FIELDSETstyle="width:400px">
<LEGEND>扫描设定</LEGEND>
<tablewidth="100%"border="0"cellspacing="0"cellpadding="0">
<tr>
<tdwidth="60">文件后缀:</td>
<tdwidth="300"><inputtype="text"name="checkuser"id="checkuser"style="width:300px;"value="<?phpecho$setting['user']?>"></td>
</tr>
<tr>
<td><labelfor="checkall">所有文件</label></td>
<td><inputtype="checkbox"name="checkall"id="checkall"<?phpif($setting['all']==1)echo"checked"?>></td>
</tr>
<tr>
<td><labelfor="checkhta">设置文件</label></td>
<td><inputtype="checkbox"name="checkhta"id="checkhta"<?phpif($setting['hta']==1)echo"checked"?>></td>
</tr>
<tr>
<td> </td>
<td>
<inputtype="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;
?>
<formname="frmScan"method="post"action="">
<tablewidth="100%%"border="0"cellspacing="0"cellpadding="0">
<tr>
<tdwidth="35"style="vertical-align:middle;padding-left:5px;">扫描路径:</td>
<tdwidth="690">
<inputtype="text"name="path"id="path"style="width:600px"value="<?phpecho$dir?>">
<inputtype="submit"name="btnScan"id="btnScan"value="开始扫描"></td>
</tr>
</table(www.nhooo.com)>
</form>
<?php
if(isset($_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_useras$key=>$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-$start);
?>
<divstyle="padding:10px;background-color:#ccc">扫描:<?phpecho$scanned?>文件|发现:<?phpecho$count?>可疑文件|耗时:<?phpecho$spent?>秒</div>
<tablewidth="100%"border="0"cellspacing="0"cellpadding="0">
<trclass="head">
<tdwidth="15"align="center">No.</td>
<tdwidth="48%">文件</td>
<tdwidth="12%">更新时间</td>
<tdwidth="10%">原因</td>
<tdwidth="20%">特征</td>
<td>动作</td>
</tr>
<?phpecho$list?>
</table>
<?php
}
}
}
ob_flush();
?>
</body>
</html>
<?php
functionscan($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_codeas$key=>$value) { if(preg_match("/$value/i",$content)) { $count++; $j=$count%2+1; $filetime=date('Y-m-dH:i:s',filemtime($current)); $reason=explode("->",$key); $url=str_replace(REALPATH,HOST,$current); preg_match("/$value/i",$content,$arr); $list.=" <trclass='alt$j'onmouseover='this.className="focus";'onmouseout='this.className="alt$j";'> <td>$count</td> <td><ahref='$url'target='_blank'>$current</a></td> <td>$filetime</td> <td><fontcolor=red>$reason[0]</font></td> <td><fontcolor=#090>$reason[1]</font></td> <td><ahref='?action=download&file=$current'target='_blank'>下载</a></td> </tr>"; //echo$key."-".$path.$file."(".$arr[0].")"."<br/>"; //echo$path.$file."<br/>"; break; } } } } } } closedir($dh); } functiongetSetting() { $Ssetting=array(); if(isset($_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$Ssetting; } functiongetCode() { returnarray( '后门特征->cha88.cn'=>'cha88.cn', '后门特征->c99shell'=>'c99shell', '后门特征->phpspy'=>'phpspy', '后门特征->Scanners'=>'Scanners', '后门特征->cmd.php'=>'cmd.php', '后门特征->str_rot13'=>'str_rot13', '后门特征->webshell'=>'webshell', '后门特征->EgY_SpIdEr'=>'EgY_SpIdEr', '后门特征->tools88.com'=>'tools88.com', '后门特征->SECFORCE'=>'SECFORCE', '后门特征->eval("?>'=>'eval(('|")?>', '可疑代码特征->system('=>'system(', '可疑代码特征->passthru('=>'passthru(', '可疑代码特征->shell_exec('=>'shell_exec(', '可疑代码特征->exec('=>'exec(', '可疑代码特征->popen('=>'popen(', '可疑代码特征->proc_open'=>'proc_open', '可疑代码特征->eval($'=>'eval(('|"|s*)\$', '可疑代码特征->assert($'=>'assert(('|"|s*)\$', '危险MYSQL代码->returnsstringsoname'=>'returnsstringsoname', '危险MYSQL代码->intooutfile'=>'intooutfile', '危险MYSQL代码->load_file'=>'select(s+)(.*)load_file', '加密后门特征->eval(gzinflate('=>'eval(gzinflate(', '加密后门特征->eval(base64_decode('=>'eval(base64_decode(', '加密后门特征->eval(gzuncompress('=>'eval(gzuncompress(', '加密后门特征->eval(gzdecode('=>'eval(gzdecode(', '加密后门特征->eval(str_rot13('=>'eval(str_rot13(', '加密后门特征->gzuncompress(base64_decode('=>'gzuncompress(base64_decode(', '加密后门特征->base64_decode(gzuncompress('=>'base64_decode(gzuncompress(', '一句话后门特征->eval($_'=>'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->SetHandlerapplication/x-httpd-php'=>'SetHandlerapplication/x-httpd-php', '.htaccess插马特征->php_valueauto_prepend_file'=>'php_valueauto_prepend_file', '.htaccess插马特征->php_valueauto_append_file'=>'php_valueauto_append_file' ); } ?>