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Westi

Change your MAC address temporarily

5 posts in this topic

Hi,

if you're in a secure network environment only network adapters with privileged

MAC addresses have access to the network.

If you don't know what i mean browse away. :ph34r:

If you want to connect with a new/portable computer such an intranet/WLAN you have to use a valid MAC address.

The script changes the MAC address for all adapters up to 32 to the given address.

You've to know what you do.

There are a lot of companies who sell software for this.

Freeware not available but:

http://www.autoitscript.com/fileman/users/public/Westi/tempmac.au3

AutoItSetOption("TrayIconHide", 1)
If @OSVersion = "WIN_NT4" Then
   MsgBox(16, "Wrong OS ", "Program needs NT5!")
   Exit
EndIf
$REG = "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}\00"
$NAM = "MAC-Address 1.0  by Westi"
$VAR1 = InputBox($NAM, "Please enter the new temporary MAC-Address." & @LF & "12 digit needed!" & @LF & "i.e. '12 AB 3f 00 dc 65' or " & @LF & "ab32DF451bCa")
If @error = 0 Then
   $VAR1 = StringUpper($VAR1)
   $VAR1 = StringStripWS($VAR1, 8)
  If StringLen($VAR1) = 12 Then
     For $I = 0 To 32
        If $I > 9 Then
            $VAR = $I
        Else
            $VAR = "0" & $I
        EndIf
         If RegRead($REG & $VAR, "ProviderName") = "Microsoft" Then
            RegWrite($REG & $VAR, "NetworkAddress", "REG_SZ", $VAR1)
         EndIf
     Next
      MsgBox(16, $NAM, "If you click 'OK' ," & @LF & "your original MAC-Address will rebuild.")
      For $I = 0 To 32
        If $I > 9 Then
            $VAR = $I
        Else
            $VAR = "0" & $I
        EndIf
         If RegRead($REG & $VAR, "ProviderName") = "Microsoft" Then
            RegDelete($REG & $VAR, "NetworkAddress")
         EndIf
      Next
  EndIf
EndIf

The AU3 script it's not perfect but it works and i wrote a full function program in http://www.autoitscript.com/fileman/users/public/Westi/mackie.zip.

It needs the service winmgmt.

Who benefits?

I wrote it for an admin to connect all VPN/subnet/WLAN.

Westi

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Nice. If it works it if great.

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Hi,

if you're in a secure network environment only network adapters with privileged

MAC addresses have access to the network.

If you don't know what i mean browse away.  :)

If you want to connect with a new/portable computer such an intranet/WLAN you have to use a valid MAC address.

The script changes the MAC address for all adapters up to 32 to the given address.

You've to know what you do.

There are a lot of companies who sell software for this.

Freeware not available but:

http://www.autoitscript.com/fileman/users/public/Westi/tempmac.au3

AutoItSetOption("TrayIconHide", 1)
If @OSVersion = "WIN_NT4" Then
   MsgBox(16, "Wrong OS ", "Program needs NT5!")
   Exit
EndIf
$REG = "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}\00"
$NAM = "MAC-Address 1.0  by Westi"
$VAR1 = InputBox($NAM, "Please enter the new temporary MAC-Address." & @LF & "12 digit needed!" & @LF & "i.e. '12 AB 3f 00 dc 65' or " & @LF & "ab32DF451bCa")
If @error = 0 Then
   $VAR1 = StringUpper($VAR1)
   $VAR1 = StringStripWS($VAR1, 8)
  If StringLen($VAR1) = 12 Then
     For $I = 0 To 32
        If $I > 9 Then
            $VAR = $I
        Else
            $VAR = "0" & $I
        EndIf
         If RegRead($REG & $VAR, "ProviderName") = "Microsoft" Then
            RegWrite($REG & $VAR, "NetworkAddress", "REG_SZ", $VAR1)
         EndIf
     Next
      MsgBox(16, $NAM, "If you click 'OK' ," & @LF & "your original MAC-Address will rebuild.")
      For $I = 0 To 32
        If $I > 9 Then
            $VAR = $I
        Else
            $VAR = "0" & $I
        EndIf
         If RegRead($REG & $VAR, "ProviderName") = "Microsoft" Then
            RegDelete($REG & $VAR, "NetworkAddress")
         EndIf
      Next
  EndIf
EndIf

The AU3 script it's not perfect but it works and i wrote a full function program in http://www.autoitscript.com/fileman/users/public/Westi/mackie.zip.

It needs the service winmgmt.

Who benefits?

I wrote it for an admin to connect all VPN/subnet/WLAN.

Westi

<{POST_SNAPBACK}>

I don't know if this has worked for anyone else but there is no way that the code will work on my WinXP Home box. I was just reviewing the code and was trying to find the registry key that you edit in the script, HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}\00##:NetworkAddress, it doesn't exist under any of the keys you search for. This will just add reg trash which noone needs. This box has 4 ethernet cards in it so I don't even want to try to run this becuase if it did find the cards it would change all of their MAC addresses to the same number... now that would be a mess.

*** Matt @ MPCS

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I don't know if this has worked for anyone else but there is no way that the code will work on my WinXP Home box. I was just reviewing the code and was trying to find the registry key that you edit in the script, HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}\00##:NetworkAddress, it doesn't exist under any of the keys you search for. This will just add reg trash which noone needs. This box has 4 ethernet cards in it so I don't even want to try to run this becuase if it did find the cards it would change all of their MAC addresses to the same number... now that would be a mess.

As you see it changes all MAC addresses to the same value.

Original AU3-code was tested on XP Pro SP1 and 2003 Server with one adapter :)

'cause of the restricted network support maybe it don't work on XP Home.

VB6 application tested on XP Pro SP1 and 2003 Server with more than one adapter and should work on XP Home.

I found another free app with a nice gui and many more options:

http://www.gorlani.com/publicprj/macmakeup/macmakeup.asp

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As you see it changes all MAC addresses to the same value.

Original AU3-code was tested on XP Pro SP1 and 2003 Server with one adapter  :)

'cause of the restricted network support maybe it don't work on XP Home.

VB6 application tested on XP Pro SP1 and 2003 Server with more than one adapter and should work on XP Home.

I found another free app with a nice gui and many more options:

http://www.gorlani.com/publicprj/macmakeup/macmakeup.asp

<{POST_SNAPBACK}>

It isn't that the network support is restricted... I just can't find the registry values you are editting. I use MacMakeup constantly and I even have source for a C application that does this... I was just commenting b/c I thought it was interesting because someone did this in AutoIt. If it works for someone then more power to you. Good Job I guess.

*** Matt @ MPCS

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