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How to do SIM Cloning

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Mobile phones are everybody’s need. People mostly do their confidential talks over cell phone’s, But only some know how easy it is to eavesdrop them, there are some tricks and hacks to do that, but the most powerful way is to clone their SIM Card. The Subscriber Identity Module (aka SIM Card) is the transmitter of the signal to the mobile and tower. So let’s understand How to do SIM cloning.

Our SIM cards contain two secret codes or keys called (IMSI value and kI value) which enable the operator to know the mobile number and authenticate the customer, these codes are related to our mobile numbers which the operators store in their vast database, it is based on these secret keys that enable the billing to be made to that customer.

The main mission in cloning any SIM Card is to get KI and IMSI codes, these codes are the identifier of the SIM Card, and help you register your mobile to the network.

By extracting these two secret codes from the SIM and program it into a new blank smart card. Since the operator authentication on SIM is based on these values, it enables us to fool the operators in thinking that it’s the original SIM, this authentication is a flaw with the GSM technology.
Which SIM cards can be cloned?

Not every SIM Card is clone-able, SIM cards are manufactured based on three algorithms COMP128v1, COMP128v2, and COMP128v3. It is important to note currently only COMP128v1 version SIM cards can be cloned since this is the only algorithm, which has been cracked, bear in mind that 70% of all the SIM cards we use are COMP128v1.

How to do SIM Cloning?

Well, There are many things to do when you clone any SIM Card, You can secretly spy on the victim’s calls and data transfers, make him mobile bill go crazy, send messages and make calls from his number, All without touching the victim’s Phone.

Things Required:

  1. Blank Programmable SIM Card
  2. An SIM Firmware Reader/Writer
  3. Download and install : MagicSIM
  4. Download and install : USB SIM Card Reader
  5. Access to Victim’s SIM for 15 to 20 minutes!

Let’s Start Cloning SIM Card

Step 1 : Remove the SIM from the phone, place it in the card reader, click read from the card in magic SIM. When it displays “connected”, select crack SIM in the toolbar.

Step 2 : Click strong kI and select all of the other find options and then click start. Once your kI is found and the crack is finished, click the file, save as and save your cracked SIM info to a file.

Step 3 : You must click disconnect from the file menu or you will ruin your SIM card. {Important! otherwise, your SIM will crack}

Step 4 : Once it says disconnected. Remove the SIM. Put the SIM in your phone and see if it still works, it should. (If not, either you did not unlock your SIM, or you tried to copy it instead of crack and save.)

Unlock SIM Card:

  1. Go in phone tools, select SIM card, then select unlock SIM, it will prompt for a code.
  2. Call network provider, they will ask for your phone number, your account info, name and security code, then they will ask why you want to unlock your SIM card, just tell them you need to unlock your SIM to get it to work with your overseas phone or something.
  3. Once they give you the SIM unlock code, enter it, and it will say SIM unlocked.

Step 5 : Insert blank SIM card and open USB SIM Card Reader Software not magic SIM at this point.

Step 6 : Click connect. It should say “No Info Found” if it is truly blank.

Step 7 : Select write to SIM, it will prompt you to select a .dat file, select the one you saved earlier.

Step 8 : Now click start, it will take about 10 minutes to write it, once it is complete, it will ask for a security code, enter the security code the network provider gave you, then click finish.

DONE : You have successfully cloned the SIM Card. Now when somebody calls the victim, Both of the mobiles will ring, same will happen in the case of SMS, But only one can pick up the call.

Note: – If you try to make two calls at the same time, one will connect and the other will say call failed, both phones will get the same messages, text, and voice, and both will receive the same calls, but only one can talk at a time.

Also don’t do anything big that will raise a red flag in Mobile Companies. You’re responsible for your own Shit and I would like to make one thing clear SIM Card Cloning is illegal. This tutorial should be used for educational purposes only. Please do SIM cloning on your own, not others.

Note: – This guide is only for knowledge purpose and shouldn’t be used for any illegal activities as we are not responsible for anything happens with this.

So, Hope you like this article and don’t forget to share it with your friends and always feel free to drop a comment below if you have any query or feedback.

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4 Comments

  1. Great! Good to know all the flaws and tricks of a hacker. This ensures to keep myself safe from those foreign attacks and secure my data.

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