Your Browser Reveals All ! How to prevent it ?

Hi Folks,

Ever wondered when you visit some sites like forums they tell you what Browser,
ISP and your version of OS is??

Your Browser is the only culprit which POST’s all information in the headers, when you Browse the Internet/ Web Server (User Agent String).

If you are still in doubt see below:



WOW! Amazing Isn’t it…

Now how do you stop this..?

Well it’s a Bit Tricky and there is a Risk if you wanna update Patches Hot-fixes from Microsoft.com.

Because Microsoft Windows Update Site checks these Header Information when you connect.

So be aware when you do this.

Always make sure you take the Registry Backup.

Here it is how to remove or Fake this Information:

Open your registry “REGEDIT” and find the “User Agent” key below.
If it does not already exist then you may need to create it.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\
CurrentVersion\Internet Settings\5.0\User Agent

You have to Create three new string values as followed:
"Compatible"
"Version"
"Platform"
Without quotes, with the Data Type of “REG_SZ” that’s for a String value.
See here:


For Mozilla FireFox Browsers:

You can run any Packet Analyzer and view the GET Request sent out from your Browser.
See here:


Type in your Mozilla Browser in URL address bar “about:config” , without any quotes and Yes these all are configurable parameters.
See here:


The user agent value can be specified in the defaults\pref\all.js file by adding the "general.useragent.override" property, as in this example:

pref( "general.useragent.override", "Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)" );


Nitin Kushwaha
CHFI.CEH.NSA.SCSCA.CIW-SA.ITIL.MCSE.MCSA