Automatically detecting malicious computer network reconnaissance by updating state codes in a histogram
US7734776B2 · kind B2 · utility
3Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2008 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | May 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/166
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A detection and response system that generates an Alert if unauthorized scanning is detected on a computer network that includes a look-up table to record state value corresponding to the sequence in which SYN, SYN/ACK and RST packets are observed. A set of algorithms executed on a processing engine adjusts the state value in response to observing the packets. When the state value reaches a predetermined value indicating that all three packets have been seen, the algorithm generates an Alert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.