SNIFFER FOR MOBILE PHONES

Introduction

• The main scope is to detect the lost mobiles

• For the detection of lost mobile SNIFFER plays a vital role

• The sniffer device has to be designed precisely and size

should be reduced for easy mobility for the purpose of detection

The sniffer is basically a transceiver that works in

the frequency which is in the special unused range

that is operated by the service provided or it can

designed to operate at a frequency that is of much

different frequency than the one that is being used

What a SNIFFER is ?

SOFTWARE FOR THE TRACKING

• The software part plays a major role in the tracking of the lost

mobile phone.

• The mobile phone that is lost has certain IMEI number that is

embedded in the chip

• The software that is to be designed in such a way that the software

has the input as the IMEI number of the lost mobile phone

•After getting the input of the lost mobile phones IMEI

number it checks the comport for getting the information

•It checks whether it obtains any signaling information

from the lost device that might respond to the signal sent

by the sniffer

Working of sniffers

The working of sniffers is of two phases:

Before Sniffer increases the frequency

After Sniffer increases the frequency

Before Sniffer increases 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

Before Sniffer increases 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

After Sniffer increases the frequency

After Sniffer increases the frequency

From the above figure we have clearly observed the racing of

the lost mobile.

We have identified the lost mobile using IMEI.

But,

The location where it is present can be known by seeing at the

output of the software.

Which depicts and retrieves the details of the lost mobile as

shown in the next slides.

GUI snapshot of MAC table

GUI snapshot of packet table of MAC

• 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.

• Let all of us hope for the advancement of the technology

in this domain.

• Which will be very helpful for each and every persons

who are lost mobiles.

CONCLUSION