Hyun-Cheol Jeong

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SIP is a signaling protocol used for establishing, modifying, terminating sessions in multimedia services such as VoIP, instant messaging, and video conferencing. Existing IP network security solutions can not detect new SIP specified network threats because they can not reflect characteristics of SIP. In this paper, we propose SIP-aware DDoS Attack(More)
While the Web provides much convenience and many people all over the world use it almost every day, it is often misused as a medium for distributing malware without users' knowledge. Special care is particularly needed with regard to Websites that are popular with users, since their infection with malware can greatly extend the scope of any damage. Damage(More)
While there are many ongoing research efforts for Denial-of-Service (DoS) attacks in the general Internet environment, there is insufficient research on voice networks. In this paper, we present the design and evaluation of a SIP-TRW algorithm for detection of DDoS attack traffic in VoIP networks. We analyzed existing TRW algorithms for detection of DDoS(More)