What is Sniffer and how does it work for

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Presentation transcript:

What is Sniffer and how does it work for detecting lost mobile and its use -Hrullekha Kodali

What is Sniffer? What is sniffer? IMEI Sniffer Based Station Unidirectional Antenna Tracking S/W Uses and certain boundaries

operated at frequency (different) What Sniffer actually has? Small Base Station Includes: Transceiver section operated at frequency (different) Directional antenna Plays major role

International Mobile Equipment Identifier What is IMEI? International Mobile Equipment Identifier Unique number Used for blocking of call made by unauthorized person 15 digit unique code identify-GSM/DCS/PCM check EIR

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)

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)

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

Designing for the Sniffer - S/W for the Tracking Signaling information RAM Signaling information s/w got checks IMEI Number i/p Programming done-c/java Back end- oracle SQL Front end-VB Lost mobile

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 and 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)

Sniffer tries to Communicate with the Lost Mobile

ADVANTAGES Uses: Useful for lost mobile effective cost low power consumption easy to design Certain boundaries : Power of mobile should be good enough mobile should not been in shadow regain References www.ijettjournal.org/volume-4/issue-4/IJETT-V4I4P335.pdf seminarprojects.org/q/ppt-detection-of-lost-mobile-using-imei-number ADVANTAGES

Thank You