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Sniffer for detecting lost mobile

Sniffer for detecting lost mobile. B y N AVANEETHAN V IGNESHWARAN M OHAMED ASHIKALI. What Happens when you lost your Mobile Phone?. Searching…. Reporting…. Praying…. But still not found?. What is the best Solution then?.

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Sniffer for detecting lost mobile

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  1. Sniffer for detecting lost mobile By NAVANEETHAN VIGNESHWARAN MOHAMED ASHIKALI

  2. What Happens when you lost your Mobile Phone?

  3. Searching… Reporting… Praying…

  4. But still not found?

  5. What is the best Solution then?

  6. What is the best Solution then? Sniffer

  7. What is Sniffer? • Precise • Small Size • Mobile Base Station • Unidirectional Antenna • Tracking S/W

  8. What Sniffer actually has?

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

  10. What is IMEI? (International Mobile Equipment Identifier)

  11. 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

  12. What is IMEI? International Mobile Equipment Identifier Networks can do NO. OF THINGS If EIR & IMEI matched To know IMEI Number DIAL *#06# BUT, We use IMEI EFFECTIVELY in SNIFFER For the purpose of DETECTON

  13. Gray List Allow the Phone to be used, but can be tracked to see who has it. Black List Listing the phone from being used on any number where there is an EMI match

  14. Designing for the Sniffer SNIFFER BASE STATION UNIDIRECTIONAL ANTENNA TRACKING S/W

  15. 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)

  16. 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)

  17. 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

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

  19. Working of a Sniffer Device • Sniffer works as a transceiver • The working of sniffers is of two phases: • Before Sniffer increases the frequency • After Sniffer increases the frequency • BTS (Base Transceiver Station) - Act as a middle man • MTSO (Mobile Telephone Switching office) = MSC(Mobile Switching Centre)

  20. Before Sniffer Increase The Frequency • By default Mobile devices always connects to the BTS(Base Station) and MSC(Mobile Switching Center). • Now the sniffer increases the frequency and amplitude. • As shown in the figure in the next slide

  21. Before Sniffer Increase The Frequency

  22. After Sniffer Increase The Frequency • So, only the particular user with the IMEI will be connected to the particular frequency. • The other mobile devices of the surroundings will not be connected. • As shown in the figure in the next slide

  23. 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)

  24. Sniffer tries to Communicate with the Lost Mobile

  25. Is browser sniffing the only viable approach for mobile device detection?

  26. ADVANTAGES • Useful for lost mobile • effective cost • low power consumption • easy to design

  27. Conclusion • The idea of development “Sniffer for the detection of lost Mobile phones” paves a way by means of which the lost mobile phones can be recovered. • Certain boundaries : • Power of mobile should be good enough • mobile should not been in shadow regain Note: “Method can been improved by using modern technology and devices”

  28. ANY QURIES…?

  29. Thank You

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