[caiu] SIP DOS attacks in Brazil

Bruno Bicalho bruno.bicalho em usp.br
Sexta Novembro 26 14:58:04 BRST 2010

Dear Shri Deo Krishna Dwivedi,
Computer Center of Motilal Nehru National Institute of Tecnology - India

Fabio Flores <fabiocflores at gmail.com> reported in brazilian list of internet
outages an SIP DOS attack in UDP 5060 port from your website link (, this attack is an dictionary based trying to login on Fabio's
PABX VoIP server.

Please check if one of your computers are not being used for make this
attacks, or if you know who is making that please take the necessary steps
to stop it.

Thanks in advance,

Bruno Bicalho

Majoring in Bachelor of Public Management - Faculty of Filosophy and
Humanities - Federal University of Minas Gerais - Brazil
Manager from the Department of Information Tecnologies and Data Processing -
Progresso Accountancy - Brazil

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