Methods and systems for detecting and mitigating a high-rate distributed denial of service (DDoS) attack
US9167004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2012 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Sep 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for detecting and mitigating high-rate Distributed Denial of Service (DDoS) attacks are herein described. The present invention contemplates a variety of improved techniques for using a flow-based statistical collection mechanism to monitor and detect deviations in server usage data. The method further includes combining multiple anomaly algorithms in a unique way to improve the accuracy of identifying a high-rate DDoS attack. The DDoS solution includes a two-phase approach of detection and mitigation, both of which operate on a local- and a global-basis. Moreover, the anomaly algorithms can be modified or extrapolated to obtain the traffic deviation parameters and therefore, the attack probabilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.