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DDoS Attack

DDoS Attack. China hit with largest DDoS in History. http:// blogs.wsj.com / chinarealtime /2013/08/26/ chinese -internet-hit-by-attack-over-weekend/. What is a DDoS Attack. Denial-of-service attack? DoS Overload Server TCP 3-Handshake register Distributed Denial of Service DDoS

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DDoS Attack

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  1. DDoS Attack China hit with largest DDoS in History http://blogs.wsj.com/chinarealtime/2013/08/26/chinese-internet-hit-by-attack-over-weekend/

  2. What is a DDoS Attack • Denial-of-service attack? DoS • Overload Server • TCP 3-Handshake • register • Distributed Denial of Service DDoS • rootkit • Brobot • Automated toolkit • Hijacks computer via

  3. China Internet Network Information System • .cnccTLD (country code top level domain) • Targeted registry • Malware & viruses containing botnets • Thousands of domains affected • Upwards of four hours

  4. How Do You Know Attack is Happening • Unusually slow network performance • Opening files or accessing websites • Unavailability of a particular website • Inability to access any website • Dramatic increase in the amount of spam you receive in your account

  5. Who is at risk? • Banks • Internet Providers • Mobile Devices • Any large Distributed Computing System

  6. Defend Against DDoS Attack • Tight lips sink company defenses • Be ready for real-time defense adjustments • Don't rely only on perimeter defenses -- Mitigate • Firewall • Intrusion prevention systems • Fight application-layerattacks in-line • Specific application attacks stealthier • Deep-packet inspection at application layer • Collaborate • Banks, telecommunication services, service providers • Have your playbook ready • Watch out for secondary attacks Authored by George V. Hulme Security & Risk Organization http://www.csoonline.com/article/734936/7-essentials-for-defending-against-ddos-attacks?page=2

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