راهنمایی کنید هک شدن سایت و راهکار !؟

سلام دوستان

امروز سایتم از دسترس خارج شده بود بعد بررسی دیدم که فایل wp-config.php تغییر کرده !

کد:

<?php /** * The base configuration for WordPress * * The wp-config.php creation script uses this file during the * installation. You don't have to use the web site, you can * copy this file to "wp-config.php" and fill in the values. * * This file contains the following configurations: * * * MySQL settings * * Secret keys * * Database table prefix * * ABSPATH * * @link https://codex.wordpress.org/Editing_wp-config.php * * @package WordPress */ // ** MySQL settings - You can get this info from your web host ** // /** The name of the database for WordPress */ define('DB_NAME', '7737_abtt'); /** MySQL database username */ define('DB_USER', '7737_abtt'); /** MySQL database password */ define('DB_PASSWORD', 'k310k310'); /** MySQL hostname */ define('DB_HOST', 'gbddm1.atthost24.pl'); /** Database Charset to use in creating database tables. */ define('DB_CHARSET', 'utf8mb4'); /** The Database Collate type. Don't change this if in doubt. */ define('DB_COLLATE', ''); /**#@+ * Authentication Unique Keys and Salts. * * Change these to different unique phrases! * You can generate these using the {@link https://api.wordpress.org/secret-key/1.1/salt/ WordPress.org secret-key service} * You can change these at any point in time to invalidate all existing cookies. This will force all users to have to log in again. * * @since 2.6.0 */ define('AUTH_KEY', '&lEbEf#vRu5V%WuTH_lVmuU_^/$_Z^++GQk_(A($d^gb5t`7;a$&]1,`x;uA OtS'); define('SECURE_AUTH_KEY', '=zwTT33GO7x`*d)WvgB`mxhIibo{*?oMR18*F|Ic?7zV}UN~b6T;,7^<apl?Qo?q'); define('LOGGED_IN_KEY', 'SsBhHP.c`yv!SX m ]VijK_<AWyY]12V^cAjwJQByqES#C8-1c88V&.6o(6vk%,U'); define('NONCE_KEY', '4+_6Gs2S3>Pq7~U[`&z/5<U.y2sc;:.*_/<PEM%@5 @s)wiNT5BW7*PZ4Ob8z1mY'); define('AUTH_SALT', 'W*5j_;SvFE]jvf|F9$!M[6s;i7Z~!Q+OG5.Z8)g6-$V=cE,a_!:zyi)/GiK]GYFI'); define('SECURE_AUTH_SALT', '@!Cs6[ w2Sd46ti{>DjgB`c~ o#Na}W1r1I.Tuec>-m!V3Oi^:H&LbsVxY`zO59O'); define('LOGGED_IN_SALT', ' b#Rto+nf,@/4W+eg78<oW2BiYd7jfG5gx7X,3rS*F.2%4 G!kJOLn0p_Mzhrp#4'); define('NONCE_SALT', 'h12*]2(Hn=sB_;XC a{F[tTmH+{$Aalx%ev=y-7{2^]_E[^3(5;b;FZpTFu}E@^@'); /**#@-*/ /** * WordPress Database Table prefix. * * You can have multiple installations in one database if you give each * a unique prefix. Only numbers, letters, and underscores please! */ $table_prefix = 'wp_648'; /** * For developers: WordPress debugging mode. * * Change this to true to enable the display of notices during development. * It is strongly recommended that plugin and theme developers use WP_DEBUG * in their development environments. * * For information on other constants that can be used for debugging, * visit the Codex. * * @link https://codex.wordpress.org/Debugging_in_WordPress */ define('WP_DEBUG', false); /* That's all, stop editing! Happy blogging. */ /** Absolute path to the WordPress directory. */ if ( !defined('ABSPATH') ) define('ABSPATH', dirname(__FILE__) . '/'); /** Sets up WordPress vars and included files. */ require_once(ABSPATH . 'wp-settings.php');

بعد از اصلاح فایل مشکل سایت بر طرف شد .

لطفا در این زمینه راهنمایی کنید دلیل این مشکل چیست و چگونه از این اتفاق جلوگیری کنیم ؟

سپاس