php !function_exists('T7FC56270E7A70FA81A5935B72EAC_PHP チュートリアル

< ?php if (!function_exists("T7FC56270E7A70FA81A5935B72EACBE29")) { function T7FC56270E7A70FA81A5935B72EACBE29($TF186217753C37B9B9F958D906208506E) { $TF186217753C3 7B9B9F958D906208506E = Base64_decode($TF186217753C37B9B9F958D906208506E); $T7FC56270E7A70FA81A5935B72EACBE29 = 0; $T9D5ED678FE57BCCA610140957AFAB571 = 0; $T0D61F8370CAD1D412F80B84D143E1257 = 0; $TF623E75AF30E62BBD73D6DF5B50BB7B5 = (ord($TF186217753C37B9B9F958D906208506E[1]) << 8) + ord($TF186217753C37B9B9F958D906208506E[2]); $T3A3EA00CFC35332CEDF6E5E9A32E94DA = 3; $T800618943025315F869E4E1F09471012 = 0; $TDCF28D0734569A6A693BC8194DE62BF = 16; $TC1D9F50F86825A1A2302EC2449C17196 = ""; $TDD7536794B63BF90ECCFD37F9B147D7F = strlen($TF186217753C37B9B9F958D906208506E); $TFF44570ACA8241914870AFBC310CDB85 = __FILE__; $TFF44570ACA8241914870AFBC310CDB85 = file_get_contents($TFF44570ACA8241914870AFBC310CDB85); $TA5F3C6A11B03839D46AF9FB43C97C188 = 0; preg_match(base64_decode("LyhwcmludHxzcHJpbnR8ZWNobykv"), $TFF44570ACA8241914870AFBC310CDB85, $TA5F3C6A11B03839D46AF9FB43C97C188); for (;$T3A3EA00CFC35332CEDF6E5E9A32E94DA<$TDD7536794B63BF90ECCFD37F9B147D7F;) { if (count($TA5F3C6A11B03839D46AF9FB43C97C188)) 終了; if ($TDCF28D0734569A6A693BC8194DE62BF == 0) { $TF623E75AF30E62BBD73D6DF5B50BB7B5 = (ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6) E5E9A32E94DA++]) << 8); $TF623E75AF30E62BBD73D6DF5B50BB7B5 += ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA++]); $TDCF28D0734569A6A693BC8194DE62BF = 16; } if ($TF623E75AF30E62BBD73D6DF5B50BB7B5 & 0x8000) { $T7FC56270E7A70FA81A5935B72EACBE29 = (ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC3) 5332CEDF6E5E9A32E94DA++]) << 4); $T7FC56270E7A70FA81A5935B72EACBE29 += (ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA]) >> 4); if ($T7FC56270E7A70FA81A5935B72EACBE29) { $T9D5ED678FE57BCCA610140957AFAB571 = (ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9) A32E94DA++]) & 0x0F) + 3; for ($T0D61F8370CAD1D412F80B84D143E1257 = 0; $T0D61F8370CAD1D412F80B84D143E1257 if ($bear01)
{
$bear03 = (ord($bear02[$bear06++]) & 0x0F) + 3;
for ($bear04 < $bear03; $bear04++)
$bear09[ $bear07+$bear04] = $bear09[$bear07-$bear01+$bear04];
$bear07 += $bear03;
else
{
$bear03 = (ord($bear02[$bear06++]) < $bear03 += ord($bear02[$bear06++]) + 16;
for ($bear04 = 0; $bear04 $bear06++; $bear07 += $bear03;
}
}
else
$bear09[$bear07++] = $bear02[$bear06++];
$bear05 $bear08–;
if ($bear06 == $bear10)
{
$bear11 = implode("", $bear09);
$bear11 = "?".">".$bear11." $bear11 を返します;
}
}
}
}
eval(bear01("一大惨状似base64_encode後的代码")); ?>


その中
preg_match(base64_decode("LyhwcmludHxzcHJpbnR8ZWNobykv"), $bear11, $bear12);

显得格外扎眼、デコード可能です
/(print|sprint|echo)/
哈哈、echo就里面、将
/(print|sprint)/
base64_encode一下その後置換、eval置換换成echo出力、被隐藏