Freeware MAC Address Changer – Technitium v3.1

Your website & network are Hackable


I saw a Freeware MAC Address Changing tool today which I thought I’d share with you all, as I used to use SMAC, a nice tool, until the guy started charging for it!

Hopefully this one won’t go the same way.

Technitium MAC Address Changer, which allows you to change Machine Access Control (MAC) Address of your Network Interface Card (NIC) irrespective to your NIC manufacturer or its driver.

It has a very simple user interface and provides ample information regarding each NIC in the machine. Every NIC has an MAC address hard coded in its circuit by its manufacturer. This hard coded MAC address is used by windows drivers to access Ethernet Networks (LAN). This tool can set a new MAC address to your NIC, bypassing the original hard coded MAC address.

Technitium MAC Address Changer v3.1 is a must tool in every security professionals tool box.

Technitium MAC Address Changer v3.1 is coded in Visual Basic 6.0.

There are some famous commercial tools available in the market for as much as US$19.99, but Technitium MAC Address Changer is available for FREE. (We don’t charge for just changing an registry value! Also knowing how this works doesn’t require extensive research as some commercial tool providers claim!)

You can download the MAC Address Changer here:

MAC Changer v3.1


Posted in: Hacking Tools, Network Hacking

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14 Responses to Freeware MAC Address Changer – Technitium v3.1

  1. earl-ku July 21, 2006 at 2:35 pm #

    hmm, i never knew the MAC adress of network devices can be changed, i though it was hardcoded intot he device, and its this that identifies each interface rite…

  2. earl-ku July 21, 2006 at 2:36 pm #

    i see, it never change the MAC address on the device, just redirect the reading of the MAC address … haha :)

  3. Darknet July 22, 2006 at 6:03 am #

    Yeah that’s basically it.

    It’s the same on Linux too, it’s inefficient to call the hardware everytime the OS needs to use the MAC address, so it reads the MAC address on installation and stores it somewhere, the values for Windows and Linux can both be changed farily easily, it doesn’t change the actual MAC address of the NIC but it does change the MAC address your machine appears to have, which is the important part!

  4. Shreyas Zare July 23, 2006 at 10:46 am #

    Technitium MAC Address Changer will remain a FREEWARE. We wont charge a penny even in upcomming versions. Version 4 will be comming soon with many more functions.

    There is a misconception regarding the hard coded MAC address on the NIC. The hard coded MAC address is just for the OS to know the manufacturer assigned address. It is the OS which decided what MAC address to use inside the ethernet or IEEE packet. This applies to all NIC irrespective of its manufacturers. If it was not so, then you wont be able to use Network Bridge, a software bridge functionality found in Windows, which is used to bridge two or more NICs on the system.

    Shreyas Zare

  5. akoesa August 2, 2006 at 8:31 am #

    I just found an other tool to change the MAC address (with source code).

    http://www.codeproject.com/tools/MacIdChanger.asp

  6. Crio September 25, 2006 at 8:37 pm #

    The MAC address is changed very easy.. throught regedit…

  7. Shaq September 26, 2006 at 9:56 am #

    10q ;)

  8. LbHiE12 November 4, 2006 at 12:20 pm #

    Is there anyone who know a link about MAC Address Changer that is written in VB6?? Thanks in advance!!!

  9. Shreyas Zare December 19, 2006 at 7:40 pm #

    Technitium MAC Address Changer v4 (TMACv4 C4) is oficially released. It has so many new features besides changing MAC address so just check it out at http://tmac.technitium.com

    Shreyas Zare

  10. bwolf April 9, 2007 at 1:41 am #

    nice tools >:)

  11. Joost January 10, 2008 at 11:33 am #

    Thanks 4 the article. I found your link with google and helped me a lot!

  12. sam August 21, 2008 at 10:43 am #

    it expired after 14 days…what do i do now…do i have to buy it ???

  13. Morgan Storey August 21, 2008 at 11:05 am #

    @sam: it is supposed to be freeware. But if not just search the registry for your mac address and change it there.

  14. Anonymous August 21, 2008 at 11:10 am #

    @sam: its a freeware, you may have got some old version from unreliable source. Just get the new version from that site.