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php !function_exists("T7FC56270E7A70FA81A5935B72EACBE29"))代码解密

转载 作者:qq735679552 更新时间:2022-09-29 22:32:09 28 4
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代码如下

< ?php if (!function_exists("T7FC56270E7A70FA81A5935B72EACBE29")) { function T7FC56270E7A70FA81A5935B72EACBE29($TF186217753C37B9B9F958D906208506E) { $TF186217753C37B9B9F958D906208506E = base64_decode($TF186217753C37B9B9F958D906208506E); $T7FC56270E7A70FA81A5935B72EACBE29 = 0; $T9D5ED678FE57BCCA610140957AFAB571 = 0; $T0D61F8370CAD1D412F80B84D143E1257 = 0; $TF623E75AF30E62BBD73D6DF5B50BB7B5 = (ord($TF186217753C37B9B9F958D906208506E[1]) << 8) + ord($TF186217753C37B9B9F958D906208506E[2]); $T3A3EA00CFC35332CEDF6E5E9A32E94DA = 3; $T800618943025315F869E4E1F09471012 = 0; $TDFCF28D0734569A6A693BC8194DE62BF = 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)) exit; if ($TDFCF28D0734569A6A693BC8194DE62BF == 0) { $TF623E75AF30E62BBD73D6DF5B50BB7B5 = (ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA++]) << 8); $TF623E75AF30E62BBD73D6DF5B50BB7B5 += ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA++]); $TDFCF28D0734569A6A693BC8194DE62BF = 16; } if ($TF623E75AF30E62BBD73D6DF5B50BB7B5 & 0x8000) { $T7FC56270E7A70FA81A5935B72EACBE29 = (ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA++]) << 4); $T7FC56270E7A70FA81A5935B72EACBE29 += (ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA]) >> 4); if ($T7FC56270E7A70FA81A5935B72EACBE29) { $T9D5ED678FE57BCCA610140957AFAB571 = (ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA++]) & 0x0F) + 3; for ($T0D61F8370CAD1D412F80B84D143E1257 = 0; $T0D61F8370CAD1D412F80B84D143E1257 < $T9D5ED678FE57BCCA610140957AFAB571; $T0D61F8370CAD1D412F80B84D143E1257++) $TC1D9F50F86825A1A2302EC2449C17196[$T800618943025315F869E4E1F09471012+$T0D61F8370CAD1D412F80B84D143E1257] = $TC1D9F50F86825A1A2302EC2449C17196[$T800618943025315F869E4E1F09471012-$T7FC56270E7A70FA81A5935B72EACBE29+$T0D61F8370CAD1D412F80B84D143E1257]; $T800618943025315F869E4E1F09471012 += $T9D5ED678FE57BCCA610140957AFAB571; } else { $T9D5ED678FE57BCCA610140957AFAB571 = (ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA++]) << 8); $T9D5ED678FE57BCCA610140957AFAB571 += ord($TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA++]) + 16; for ($T0D61F8370CAD1D412F80B84D143E1257 = 0; $T0D61F8370CAD1D412F80B84D143E1257 < $T9D5ED678FE57BCCA610140957AFAB571; $TC1D9F50F86825A1A2302EC2449C17196[$T800618943025315F869E4E1F09471012+$T0D61F8370CAD1D412F80B84D143E1257++] = $TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA]); $T3A3EA00CFC35332CEDF6E5E9A32E94DA++; $T800618943025315F869E4E1F09471012 += $T9D5ED678FE57BCCA610140957AFAB571; } } else $TC1D9F50F86825A1A2302EC2449C17196[$T800618943025315F869E4E1F09471012++] = $TF186217753C37B9B9F958D906208506E[$T3A3EA00CFC35332CEDF6E5E9A32E94DA++]; $TF623E75AF30E62BBD73D6DF5B50BB7B5 <<= 1; $TDFCF28D0734569A6A693BC8194DE62BF--; if ($T3A3EA00CFC35332CEDF6E5E9A32E94DA == $TDD7536794B63BF90ECCFD37F9B147D7F) { $TFF44570ACA8241914870AFBC310CDB85 = implode("", $TC1D9F50F86825A1A2302EC2449C17196); $TFF44570ACA8241914870AFBC310CDB85 = "?".">".$TFF44570ACA8241914870AFBC310CDB85."< "."?"; return $TFF44570ACA8241914870AFBC310CDB85; } } } } eval(T7FC56270E7A70FA81A5935B72EACBE29("一大堆貌似base64_encode后的代码")); ?>  。

直接将eval替换成echo,结果页面为空白!真郁闷,这招可是百发百中的啊,今天遇到了高人写的代码。。。  慢慢替换,将长变量替换成短的,增强代码可读性。  。

复制代码代码如下

< ?php  if (!function_exists("bear01″))  {  function bear01($bear02)  {  $bear02 = base64_decode($bear02);  $bear01 = 0;  $bear03 = 0;  $bear04 = 0;  $bear05 = (ord($bear02[1]) < < 8) + ord($bear02[2]);  $bear06 = 3;  $bear07 = 0;  $bear08 = 16;  $bear09 = "";  $bear10 = strlen($bear02);  $bear11 = __FILE__;  $bear11 = file_get_contents($bear11);  $bear12 = 0;  preg_match(base64_decode("LyhwcmludHxzcHJpbnR8ZWNobykv"), $bear11, $bear12); ///(print|sprint|echo)/  for (;$bear06< $bear10;)  {  if (count($bear12)) exit;  if ($bear08 == 0)  {  $bear05 = (ord($bear02[$bear06++]) < < 8);  $bear05 += ord($bear02[$bear06++]);  $bear08 = 16;  }  if ($bear05 & 0×8000)  {  $bear01 = (ord($bear02[$bear06++]) < < 4);  $bear01 += (ord($bear02[$bear06]) >> 4);  if ($bear01)  {  $bear03 = (ord($bear02[$bear06++]) & 0x0F) + 3;  for ($bear04 = 0; $bear04 < $bear03; $bear04++)  $bear09[$bear07+$bear04] = $bear09[$bear07-$bear01+$bear04];  $bear07 += $bear03;  }  else  {  $bear03 = (ord($bear02[$bear06++]) < < 8);  $bear03 += ord($bear02[$bear06++]) + 16;  for ($bear04 = 0; $bear04 < $bear03; $bear09[$bear07+$bear04++] = $bear02[$bear06]);  $bear06++; $bear07 += $bear03;  }  }  else  $bear09[$bear07++] = $bear02[$bear06++];  $bear05 < <= 1;  $bear08–;  if ($bear06 == $bear10)  {  $bear11 = implode("", $bear09);  $bear11 = "?".">".$bear11."< "."?";  return $bear11;  }  }  }  }  eval(bear01("一大堆貌似base64_encode后的代码")); ?>  。

其中  preg_match(base64_decode("LyhwcmludHxzcHJpbnR8ZWNobykv"), $bear11, $bear12);  显得格外扎眼 ,decode出来就是  /(print|sprint|echo)/  哈哈,echo就在里面,将  /(print|sprint)/  base64_encode一下然后替换,eval替换成echo输出,被隐藏的代码终于重见天日。  其实简单的就是分三步即可: 第一步:搜索preg_match(base64_decode("LyhwcmludHxzcHJpbnR8ZWNobykv")替换为:preg_match(base64_decode("LyhwcmludHxzcHJpbnQpLw==")即可 第二步:将eval(T7FC56270E7A70FA81A5935B72EACBE29字符串中的下面的eval替换为echo或print即可 第三步:然后查看源文件即可看到php代码(右键-查看源文件).

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