Patents by Inventor Saumyavapuh Lugani

Saumyavapuh Lugani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Anomaly information distribution with threshold
    Patent number: 8677480
    Abstract: Embodiments of the present disclosure provide techniques for distributing information about possible anomalies in a network. A sensor in a network may detect packets with payloads that match an anomaly signature. Address dispersion information, for example, in the form of source and address bitmaps, may be gathered at the sensor. The address dispersion information may be distributed to one or more peer sensors if the information indicates that the number of different addresses of the detected matching packets exceeds a threshold.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: March 18, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Chui-Tin Yen, Saumyavapuh Lugani, Snigdhendu Mukhopadhyay, Rajiv Raghunarayan, Sumeet Singh
  • Detecting botnets
    Patent number: 8661544
    Abstract: A method is disclosed for distributed detection of botnets via a plurality of sensors on a network. According to embodiments, DNS information, including domain names and addresses, is received at a sensor, the number of unique subnets corresponding to a domain name is determined and an alert is sent to other sensors when the number of unique subnets exceeds a first threshold. Other embodiments are also disclosed.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: February 25, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Chui-Tin Yen, Saumyavapuh Lugani, Snigdhendu Mukhopadhyay, Kuntal Daftary
  • METHOD AND APPARATUS FOR DETECTING BOTNETS
    Publication number: 20120054869
    Abstract: A method is disclosed for distributed detection of botnets via a plurality of sensors on a network. According to embodiments, DNS information, including domain names and addresses, is received at a sensor, the number of unique subnets corresponding to a domain name is determined and an alert is sent to other sensors when the number of unique subnets exceeds a first threshold. Other embodiments are also disclosed.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 1, 2012
    Inventors: Chui-Tin Yen, Saumyavapuh Lugani, Snigdhendu Mukhopadhyay, Kuntal Daftary
  • ANOMALY INFORMATION DISTRIBUTION WITH THRESHOLD
    Publication number: 20100058469
    Abstract: Embodiments of the present disclosure provide techniques for distributing information about possible anomalies in a network. A sensor in a network may detect packets with payloads that match an anomaly signature. Address dispersion information, for example, in the form of source and address bitmaps, may be gathered at the sensor. The address dispersion information may be distributed to one or more peer sensors if the information indicates that the number of different addresses of the detected matching packets exceeds a threshold.
    Type: Application
    Filed: September 3, 2008
    Publication date: March 4, 2010
    Inventors: Chui-Tin Yen, Saumyavapuh Lugani, Snigdhendu Mukhopadhyay, Rajiv Raghunarayan, Sumeet Singh