SIM CLONE

What is it ?

SIM cloning is the process in which a legitimate SIM card is duplicated. When the cloning is completed, the cloned SIM card's identifying information is transferred onto a separate, secondary SIM card. The secondary card can then be used in a different phone while having all calls and associated charges attributed to the original SIM card. The phrase SIM clone is often used to refer to the SIM card that has been successfully duplicated.

How to make it ?

The stages

• Scan the SIM to extract IMSI (just read it!)

and Ki, the 128 bit key (for COMP128-1

only, so far….)

• Now put the IMSI and Ki into some card

software

• And then copy it into a new SIM card

• We now have a cloned SIM

First we need to read the SIM

• A small reader, connected to a serial port

Then we need to find Ki

• We need Ki and IMSI, we can use Simscan

from Dejan’s pages that will break COMP128-1

Here’s the software

• Simscan ready to go….

  

Now scanning the card

• Searching for the key

Getting there

• The result slowly appears (this one looks interesting)

Now we have it!

• This was a SIM supplied to delegates at a Meeting; Ki is a bit obvious isn’t it!

Now to create the software

• Using some more software from the Internet

Called KiSsMi we create the software for the card

We now need to program the SIM

• We use a single chip PIC computer which is in a SIM

shaped package (GOLD CARD)

• We use a smart card programmer (easily bought

on the Internet)

• And then we program up the card….

The programmer…..

• With the card ready to go

The software for the programmer

• Just load in the software we created with KiSsMi using VxTools

And we now have a cloned card