using System;

using System.Xml;

using System.Text;

​

public class Program

{

    public static void Main()

    {

        var xmldoc = @"<tags><tag name=""HOST_END""> Mon Nov 19 09:27:15 2018</tag><tag name=""LastUnauthenticatedResults"">1542590801</tag><tag name=""Credentialed_Scan"">false</tag> </tags> />";

        var filedoc = new XmlDocument();

        filedoc.LoadXml(xmldoc);

        XmlNodeList elemList = filedoc.GetElementsByTagName("tag") ;

        foreach (XmlNode node in elemList)  

{  

    var ID = node.Attributes["name"].Value;  

   }  

    }

}