03-04-2012, 09:53 PM
i want a seminar report and ppt on mobile phone cloning
03-04-2012, 09:53 PM
i want a seminar report and ppt on mobile phone cloning
04-04-2012, 10:09 AM
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26-06-2013, 12:06 PM
mobile phone cloning
mobile phone.docx (Size: 175.05 KB / Downloads: 26) ABSTRACT Mobile communication has been readily available for several years, and is major business today. It provides a valuable service to its users who are willing to pay a considerable premium over a fixed line phone, to be able to walk and talk freely. Because of its usefulness and the money involved in the business, it is subject to fraud. Unfortunately, the advance of security standards has not kept pace with the dissemination of mobile communication. Some of the features of mobile communication make it an alluring target for criminals. It is a relatively new invention, so not all people are quite familiar with its possibilities, in good or in bad. Its newness also means intense competition among mobile phone service providers as they are attracting customers. The major threat to mobile phone is from cloning. Cell phone cloning is a technique wherein security data from one cell phone is transferred into another phone. The other cell phone becomes the exact replica of the original cell phone like a clone. As a result, while calls can be made from both phones, only the original is billed. Though communication channels are equipped with security algorithms, yet cloners get away with the help of loop holes in systems. So when one gets huge bills, the chances are that the phone is being cloned. This paper describes about the cell phone cloning with implementation in GSM and CDMA technology phones. It gives an insight into the security mechanism in CDMA and GSM phones along with the loop holes in the systems and discusses on the different ways of preventing this cloning. Moreover, the future threat of this fraud is being elaborated INTRODUCTION Cloning is the creation of an organism that is an exact genetic copy of another. This means that every single bit of DNA is the same between the two! Remember Dolly the lamb, cloned from a six-year-old ewe in 1997, by a group of researchers at the Roslin Institute in Scotland? While the debate on the ethics of cloning continues, human race, for the first time, are faced with a more tangible and harmful version of cloning and this time it is your cell phone that is the target. Millions of cell phones users, be it GSM or CDMA, run at risk of having their phones cloned. As a cell phone user if you have been receiving exorbitantly high bills for calls that were never placed, chances are that your cell phone could be cloned. Unfortunately, there is no way the subscriber can detect cloning. Events like call dropping or anomalies in monthly bills can act as tickers. HOW CELL PHONE WORKS? Cell phones send radio frequency transmissions through the air on two distinct channels, one for voice communications and the other for control signals. When a cellular phone makes a call, it normally transmits its Electronic Security Number (ESN), Mobile Identification Number (MIN), its Station Class Mark (SCM) and the number called in a short burst of data. This burst is the short buzz you hear after you press the SEND button and before the tower catches the data. These four things are the components the cellular provider uses to ensure that the phone is programmed to be billed and that it also has the identity of both the customer and the phone. MIN and ESN is collectively known as the ‘Pair’ which is used for the cell phone identification. When the cell site receives the pair signal, it determines if the requester is a legitimate registered user by comparing the requestor's pair to a cellular subscriber list. Once the cellular telephone's pair has been recognized, the cell site emits a control signal to permit the subscriber to place calls at will. This process, known as Anonymous Registration, is carried out each time the telephone is turned on or picked up by a new cell site. WHAT IS CELL PHONE CLONING? Cell phone cloning is copying the identity of one mobile telephone to another mobile telephone. Usually this is done for the purpose of making fraudulent telephone calls. The bills for the calls go to the legitimate subscriber. The cloner is also able to make effectively anonymous calls, which attracts another group of interested users. Cloning is the process of taking the programmed information that is stored in a legitimate mobile phone and illegally programming the identical information into another mobile phone. The result is that the "cloned" phone can make and receive calls and the charges for those calls are billed to the legitimate subscriber. The service provider network does not have a way to differentiate between the legitimate phone and the "cloned" phone. Cloning of mobile phones is the act of copying the subscriber information from one phone onto the other for purposes of obtaining free calls. The other cell phone becomes the exact replica of the original cell phone like a clone. As a result, while calls can be made from both phones, only the original is billed. WHEN DID CELL CLONING START? The early 1990s were boom times for eavesdroppers. Any curious teenager with a £100 Tandy Scanner could listen in to nearly any analogue mobile phone call. As a result, Cabinet Ministers, company chiefs and celebrities routinely found their most intimate conversations published in the next day's tabloids Cell phone cloning started with Motorola "bag" phones and reached its peak in the mid 90's with a commonly available modification for the Motorola "brick" phones, such as the Classic, the Ultra Classic, and the Model 8000. GSM – Global System for Mobile Communications. A digital cellular phone technology based on TDMA GSM phones use a Subscriber Identity Module (SIM) card that contains user account information. Any GSM phone becomes immediately programmed after plugging in the SIM card, thus allowing GSM phones to be easily rented or borrowed.Operators who provide GSM service are Airtel,Hutch etc. CDMA - Code Division Multiple Access. A method for transmitting simultaneous signals over a shared portion of the spectrum. There is no Subscriber Identity Module (SIM) card unlike in GSM.Operators who provides CDMA service in India are Reliance and Tata Indicom. Both GSM and CDMA handsets are prone to cloning. Technically, it is easier to clone a CDMA handset over a GSM one, though cloning a GSM cell phone is not impossible. There are also Internet sites that provide information on how one could go about hacking into cell-phones. Cloning CDMA Cell Phones - Cellular telephone thieves monitor the radio frequency spectrum and steal the cell phone pair as it is being anonymously registered with a cell site. The technology uses spread-spectrum techniques to share bands with multiple conversations. Subscriber information is also encrypted and transmitted digitally. CDMA handsets are particularly vulnerable to cloning, according to experts. First generation mobile cellular networks allowed fraudsters to pull subscription data (such as ESN and MIN) from the analog air interface and use this data to clone phones. A device called as DDi, Digital Data Interface (which comes in various formats from the more expensive stand-alone box, to a device which interfaces with your 800 MHz capable scanner and a PC) can be used to get pairs by simply making the device mobile and sitting in a busy traffic area (freeway overpass) and collect all the data you need. The stolen ESN and EMIN were then fed into a new CDMA handset, whose existing program was erased with the help of downloaded software. The buyer then programs them into new phones which will have the same number as that of the original subscriber. HOW IS CELL CLONING DONE? Cloning involved modifying or replacing the EPROM in the phone with a new chip which would allow you to configure an ESN (Electronic serial number) via software. You would also have to change the MIN (Mobile Identification Number). When you had successfully changed the ESN/MIN pair, your phone was an effective clone of the other phone. Cloning required access to ESN and MIN pairs. ESN/MIN pairs were discovered in several ways: 1. Sniffing the cellular 2. Trashing cellular companies or cellular resellers 3. Hacking cellular companies or cellular resellers Cloning still works under the AMPS/NAMPS system, but has fallen in popularity as older clone able phones are more difficult to find and newer phones have not been successfully reverse-engineered. Cloning has been successfully demonstrated under GSM, but the process is not easy and it currently remains in the realm of serious hobbyists and researchers. When placing a call, the phone transmits both the ESN and the MIN to the network. These were, however, sent in the clear, so anyone with a suitable scanner could receive them. The eavesdropped codes would then be programmed into another phone, effectively cloning the original subscription. Any calls made on this cloned phone would be charged on the original customer. See figure2. ROLE OF SERVICE PROVIDER TO COMBAT CLONING FRAUD? They are using many methods such as RF Fingerprinting, subscriber behavior profiling, and Authentication. RF Fingerprinting is a method to uniquely identify mobile phones based on certain unique radio frequency transmission characteristics that are essentially "fingerprints" of the radio being used. Subscriber behavior profiling is used to predict possible fraudulent use of mobile service based on the types of calls previously made by the subscriber. Calls that are not typical of the subscriber's past usage are flagged as potentially fraudulent and appropriate actions can be taken. Authentication has advantages over these technologies in that it is the only industry standardized procedure that is transparent to the user, a technology that can effectively combat roamer fraud, and is a prevention system as opposed to a detection system. CONCLUSION Presently the cellular phone industry relies on common law (fraud and theft) and in-house counter measures to address cellular phone fraud. Is in initial stages in India so preventive steps should be taken by the network provider and the Government the enactment of legislation to prosecute crimes related to cellular phones is not viewed as a priority, however. It is essential that intended mobile crime legislation be comprehensive enough to incorporate cellular phone fraud, in particular "cloning fraud" as a specific crime. |
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