Connectionless port scan detection on a network

Details Connectionless port scan detection on a network Connectionless port scan detection on a network

2011-03-15

2011-03-15

Srivastava, Vivek (Department: 2433)

Information security

Monitoring or scanning of software or data including attack...

C370S388000, C370S390000, C370S392000, C370S396000

Reexamination Certificate

active

07908655

ABSTRACT:
A system and a method for detecting port scanning activities on a computer network. A probability variable is assigned to a device on a computer network. The probability variable indicates the probability that the device is conducting port-scanning activities. Data describing transmissions by the device during multiple intervals of time is accessed, and, for each of the time intervals, a determination is made concerning whether or not the device conducted port-scanning activities. Based on these determinations, the probability variable is updated for each of the time intervals.

REFERENCES:
patent: 7500266 (2009-03-01), Vukelich et al.
patent: 2003/0105976 (2003-06-01), Copeland, III
patent: 2004/0117478 (2004-06-01), Triulzi et al.

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