gistfile1.txt

using System;
using System.IO;
using System.Net;

namespace ConsoleApplication9
{
    class Program
    {
        static string str = @"------WebKitFormBoundaryoCMA9W1hTtsLzZ8e

Content-Disposition: form-data; name=""fw_username""



TEU

------WebKitFormBoundaryoCMA9W1hTtsLzZ8e

Content-Disposition: form-data; name=""fw_password""



TEU

------WebKitFormBoundaryoCMA9W1hTtsLzZ8e

Content-Disposition: form-data; name=""fw_domain""



Active Directory

------WebKitFormBoundaryoCMA9W1hTtsLzZ8e

Content-Disposition: form-data; name=""submit""



Login

------WebKitFormBoundaryoCMA9W1hTtsLzZ8e

Content-Disposition: form-data; name=""action""



fw_logon

------WebKitFormBoundaryoCMA9W1hTtsLzZ8e

Content-Disposition: form-data; name=""style""



fw_logon_progress.xsl

------WebKitFormBoundaryoCMA9W1hTtsLzZ8e

Content-Disposition: form-data; name=""fw_logon_type""



logon

------WebKitFormBoundaryoCMA9W1hTtsLzZ8e--";


        static void Main(string[] args)
        {
            ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, errors) => true;
            ServicePointManager.Expect100Continue = false;

            var webRequest = (HttpWebRequest)HttpWebRequest.Create("https://10.1.254.250:4100/wgcgi.cgi?action=fw_logon&style=fw_logon.xsl&fw_logon_type=logout");
            webRequest.Method = "POST";
            webRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
            webRequest.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.3");
            webRequest.Headers.Add("Accept-Encoding", "gzip,deflate,sdch");
            webRequest.Headers.Add("Accept-Language", "pt-BR,pt;q=0.8,en-US;q=0.6,en;q=0.4");
            webRequest.Headers.Add("Cache-Control", "max-age=0");
            webRequest.ContentType = "multipart/form-data; boundary=----WebKitFormBoundaryoCMA9W1hTtsLzZ8e";
            webRequest.Headers.Add("Cookie", "domain=Active Directory; username=albertomonteiro");
            webRequest.Headers.Add("Origin", "https://10.1.254.250:4100");
            webRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11";

            using(var stream = new StreamWriter(webRequest.GetRequestStream())) 
                stream.Write(str);

            var webResponse = webRequest.GetResponse();

            using(var strR = new StreamReader(webResponse.GetResponseStream())) 
                Console.WriteLine(strR.ReadToEnd());
        }
    }
}