Ncircle Network Security, Inc.

Tripwire, Inc.

Brian Buchanan

Timothy David Keanini

John S Flowers

Martin A Quiroga

Jeremy Cooper

Andrew Molitor

John-Mark Gurney

A system comprises a security manager to scan a network for host instances representing hosts on the network at that time, and record characteristics of the host instances in a host record. The security manager subsequently scans the network for host instances in order to identify persistent hosts. A host profiling module takes snapshots of the network to generate host instances based on characteristics such as an IP address, a NetBIOS name, a DNS name, a MAC address. A host matching module correlates host instances from different snapshots using weighted rules (predetermined or customized) to discriminate between multiple potential matching host instances. Also, security logic makes security decisions based on data including persistent host information.

Persistent host determination

A system and method for providing distributed security of a network. Several device profilers are placed at different locations of a network to assess vulnerabilities from different perspectives. The device profiler identifies the hosts on the network, and characteristics such as operating system and applications running on the hosts. The device profiler traverses a vulnerability tree having nodes representative of characteristics of the hosts, each node having an associated set of potential vulnerabilities. Verification rules can verify the potential vulnerabilities. A centralized correlation server, at a centrally accessible location in the network, stores the determined vulnerabilities of the network and associates the determined vulnerabilities with attack signatures. Traffic monitors access the attack signatures and monitor network traffic for attacks against the determined vulnerabilities.

Network security system having a device profiler communicatively coupled to a traffic monitor

A system and method for providing distributed security of a network. Several device profilers are placed at different locations of a network to assess vulnerabilities from different perspectives. The device profiler identifies the hosts on the network, and characteristics such as operating system and applications running on the hosts. The device profiler traverses a vulnerability tree having nodes representative of characteristics of the hosts, each node having an associated set of potential vulnerabilities. Verification rules can verify the potential vulnerabilities. A centralized correlation server, at a centrally accessible location in the network, stores the determined vulnerabilities of the network and associates the determined vulnerabilities with attach signatures. Traffic monitors access the attack signatures and monitor network traffic for attacks against the determined vulnerabilities.

Growing community of inventors

San Leandro, CA, United States of America

Brian Buchanan