Sniffer for detecting lost mobile.pptx

7/27/2019 Sniffer for detecting lost mobile.pptx

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Snifferfor detecting lost mobile

By Asmita Tarar

Amravati


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What Happens when you lost

Mobile Phone?


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ReportingSearching Pra


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But still not found?


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What is the best Solution th


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What is the best Solution then?

Sniffer


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What is Sniffer?

Precise

Small Size Mobile Base Station

Unidirectional Antenna

Tracking S/W


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What Sniffer actually has?


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What Sniffer actually has?

Small Base Station

Plays ma

Transceiver section

operated at frequency (different)

Directional antenna

Includes:


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What is IMEI?(International Mobile Equipment Identifier)


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

Unique number

Used for blocking of call made by unauthorized person

15 digit unique code

identify-GSM/DCS/PCM

check EIR


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

IfEIR & IMEI matched

NETWORKS CAN DO NO. OF THINGS

TO KNOW IMEI NUMBER DIAL *#06#

BUT, We use IMEI EFFECTIVELY in SNIFFER

For the purpose of DETECTON


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

Black ListListing the phone from being used on any

number where there is an EMI match


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Designing for the Sniff1.SNIFFER BASE STATION

2.UNIDIRECTIONAL ANTENNA3.TRACKING S/W


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Design Of Unidirectional Ant

Designing for the Sniffer - Design Of Unidirectional A

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

(Unidirectiona


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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)


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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


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S/W for the Tracking

Designing for the Sniffer - S/W for the Tracking

RAM

IMEI Number

Lost mobile

Signali

i/p


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Working of a Sniffer Devic Sniffer works as a transceiver

BTS (Base Transceiver Station) - Act as a middle MTSO (Mobile Telephone Switching office) =

MSC(Mobile Switching Centre)


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Before Sniffer Increase The Frequency


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After Sniffer Increase The Frequency

IMEI no. provided by MTSO or MSC

BTS(base transceiver station)-act as a middle man

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


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Sniffer tries to Communicate with the Lost Mobile


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Is browser sniffing the only viable afor mobile device detection?


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ADVANTAGES Useful for lost mobile

effective cost low power consumption

easy to design


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ConclusionCertain boundaries :

Power of mobile should be good enough mobile should not been in shadow regain

Note: Method can been improved by using modern technology an


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Thank You

Documents

Sniffer for detecting lost mobile.pptx