Hacking For Beginners – Manthan Desai

2010

Call Spoofing / Forging

• Call forging is method to spoof caller id number displayed on the mobile phone/landline.

• It relies on VoIP (Voice over Internet Protocol)

• VoIP is emerging & exciting innovation as far as Information technology is concerned.

• Can be considered as GEN Next Cyber Crime.

About Caller Id Forging/Spoofing

Caller ID Forging the practice of causing the telephone network number on the recipient's caller ID displaywhich is not that of the actual originating station; the term is commonly used to describe situations in which themotivation is considered nefarious by the speaker. Just as e-mail spoofing can make it appear that a message came fromany e-mail address the sender chooses, caller ID forging can make a call appear to have come from any phone number thecaller wishes. Because people are prone to assume a call is coming from the number (and hence, the associated person,question.

Firstly the voip is used to call via internet PC to a telephone.In the Voip there is a loop hole which allow a intruder to spoof a call.

There are many website on the net which provide the facility of the internet calling.

This website work as follows,first the call the source phone no then the destiation number and then bridge themtogather.

Here there is no authentication done by the website and server are normally located in US and so tracing of theintruder is not possible.

Thus the intruder logs on to this server and gives a wrong source number and then place a call over internetwhich is actually a spoofed call which shows wrong identity.

Also there a no laws regarding the call spoofing in India and so a intruder if gets traced is easily backed by theloophole of no laws for it.

thus if you get calls from other numbers dont trust it they may be spoofed calls.

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