Sniffer For Detecting Lost Mobile

ByArvind Negi

What Happens when you lost your Mobile

Phone?

Reporting…Searching

…Praying…

But still not found?

What is the best Solution then?

What is the best Solution then?

Sniffer

Abstract

• Feature: help to create database using RAM

• IMEA - embedded in a chip

• RAM stores - IMEI no.

• Act as a database

What is Sniffer? The cell phone though the mobile communication system is proved to be an advantageous method of communication over wired communication, there is another problem that is the mobile phones get lost or get misplaced. The losses are increasing day by day and there has been very little effort that has been done to obtain the lost mobile phone.

Introduction

• Feature: help to create database using RAM

• IMEA - embedded in a chip

• RAM stores - IMEI no.

• Act as a database

A sniffer is a program or a device that eavesdrops on the network traffic by grabbing information traffic over a network. A cell phone really like a radio an extremely sophisticated radio, which uses some band of frequency that has the basic working similar to the ordinary cordless phone. One of the most interesting things about cell phone is that it is really a radio an extremely sophisticated radio, which uses some band of frequency that has the basic working similar to the ordinary cordless phone. The mobile cellular communication has been appreciated since its birth in the early 70’s and the advancement in the field of VLSI has helped in designing less power, smaller size but efficient transceiver for the purpose of communication. But however the technology has not yet answered the loss or misplacement of the lost mobile phone which is significantly increasing. In this paper we discuss the problem and the probable solution that could be done. The IMEI number is a unique number that is embedded in the mobile phone the main purpose of which is the blocking of calls that is made by unauthorized person once the mobile is reported as stolen but here we use it effectively for the purpose of detection.

Literature Survey

• 42% of lost mobiles have no security in place to protect data

• 20% of lost devices had access to work email

• 20% contained sensitive personal information such as national insurance numbers, addresses and dates of birth

• 35% had access to social networking accounts via apps or web browser-stored cookies

What is Sniffer?period 2004-2011, by focusing on high-level attacks, such those to user applications. We group existing approaches aimed at protecting mobile devices against these classes of attacks into different categories, based upon the detection principles, architectures, collected data and operating systems, especially focusing on IDS-based models and tools. With this categorization we aim to provide an easy and concise view of the underlying model adopted by each approach.

Proposed MethodsSNIFFER

• A program and/or device that monitors data traveling over a network

• It is a wire-tap device

• Sniffing refers to capture the data and information over the network traffic

• With the help of “sniffing” program a programmer can listen in on computer conversations

• A sniffer can catch all packet traffic on network block

What Sniffer actually has?

Small Base Station

Plays major role

Transceiver section

operated at frequency (different)

Directional antenna

Includes:

ExperimentationEMEI(International Mobile Equipment Identity)

• Unique number

• Used for blocking of call made by unauthorized person

• 15 digit unique code

• identify-GSM/DCS/PCM

• check EIR (Equipment Identity Register)

• The function of an IMEI code is to identify the phone

What is IMEI?I n t e r n a ti o n a l M o b i l e E q u i p m e n t I d e n ti fi e r

If EIR & IMEI matched

NETWORKS CAN DO NO. OF THINGS

TO KNOW IMEI NUMBER DIAL *#06#

BUT, We use IMEI EFFECTIVELY in SNIFFERFor the purpose of DETECTON

Gray ListAllow the Phone to be used, but can be tracked to see who has it.

Black ListListing the phone from being used on any number where there is an EMI match

Designing for the Sniffer1.SNIFFER BASE STATION

2.UNIDIRECTIONAL ANTENNA3.TRACKING S/W

Design Of Unidirectional Antenna

Designing for the Sniffer - Design Of Unidirectional Antenna

• Act as a eyes for the sniffer

• Antenna is a device works at specified frequency

• Transmitting & receiving data signal

• Transmit power

• Used to show radiation pattern

(Unidirectional Antenna Radio Pattern)

Sniffer Base Station

Designing for the Sniffer - Sniffer Base Station

• Small base station

• Include transceiver section

• Operated at frequency (900mhz which is VHF range)

• OSCILLATOR circuit-for frequency range

• Important is cooling

• Low power transmitter (help in nature)

S/W for the Tracking

Designing for the Sniffer - S/W for the Tracking

• Feature: help to create database using RAM

• IMEA - embedded in a chip

• RAM stores - IMEI no.

• Act as a database

S/W for the Tracking

Designing for the Sniffer - S/W for the Tracking

RAM

IMEI Number

Lost mobile

Signaling information

Programming done-c/java

Front end-VB

Back end- oracle SQL

i/p

checks

s/w got

Working of a Sniffer Device• Sniffer works as a transceiver• BTS (Base Transceiver Station) - Act as a middle

man• MTSO (Mobile Telephone Switching office) =

MSC(Mobile Switching Centre)

Before Sniffer Increase The Frequency

After Sniffer Increase The Frequency

IMEI no. provided by MTSO or MSCBTS(base transceiver station)-act as a middle man

MTSO(mobile telephone switching office)=MSC(mobile switching centre)

Sniffer tries to Communicate with the Lost Mobile

Key Finding

• SNIFFER (The small transceiver used for detecting lost mobile phone)

• IMEA (International Mobile Equipment Identifier)

• MTSO (Mobile Telephone Switching Office)

• MSC (Mobile Station Switching Controller)

• BTS (Base transceiver station)

ConclusionDesigning for the Sniffer - S/W for the Tracking

• Feature: help to create database using RAM

• IMEA - embedded in a chip

• RAM stores - IMEI no.

• Act as a database

ReferenceDesigning for the Sniffer - S/W for the Tracking

• http://www.google.com

• http://www.seminarsonly.com

• John D Kraus, “Electromagnetics”, TMH,

• Schiller , “Mobile Communication”, Pearson Education 1 Edition, 7th reprint-2003

• Jordan et al, “Electromagnetic waves

Thank You