Spam over Internet Telephony with SPITFILE
Miroslav VOZNAK, Filip REZAC (CESNET)
One of the most extended attacks in the Internet environment is Spam. It is estimated that Spam takes 80 - 90% of total attacks on the Internet. Security experts predict that Spam over Internet Telephony (SPIT) will be a major threat in the future. The level of annoying factor is even greater than classical Spam. On an avarage we recieve 5 Spam emails per day and we delete them and most of us have to take this as a daily routine. Now instead of unwanted emails we can imagine a machine generating many calls and replaying a message. It is really inconvenient thought. An experimental SPIT attack has been developed as an application at CESNET. The software was given a name SPITFILE and has been written in Python and based on the famous call generator SIPp. The presented paper deals with the SPITFILE as an example of SPIT attack and of course, how to defend against these attacks.
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