Patents by Inventor Gaurav S. Kc

Gaurav S. Kc 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).

  • Methods, systems, and media for detecting and preventing malcode execution
    Patent number: 8925090
    Abstract: A system for detecting and halting execution of malicious code includes a kernel-based system call interposition mechanism and a libc function interception mechanism. The kernel-based system call interposition mechanism detects a system call request from an application, determines a memory region from which the system call request emanates, and halts execution of the code responsible for the call request if the memory region from which the system call request emanates is a data memory region. The libc function interception mechanism maintains an alternative wrapper function for each of the relevant standard libc routines, intercepts a call from an application to one or more libc routines and redirects the call into the corresponding alternative wrapper function.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: December 30, 2014
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Gaurav S. Kc, Alfred V. Aho
  • METHODS, SYSTEMS, AND MEDIA FOR DETECTING AND PREVENTING MALCODE EXECUTION
    Publication number: 20110289586
    Abstract: A system for detecting and halting execution of malicious code includes a kernel-based system call interposition mechanism and a libc function interception mechanism. The kernel-based system call interposition mechanism detects a system call request from an application, determines a memory region from which the system call request emanates, and halts execution of the code responsible for the call request if the memory region from which the system call request emanates is a data memory region. The libc function interception mechanism maintains an alternative wrapper function for each of the relevant standard libc routines, intercepts a call from an application to one or more libc routines and redirects the call into the corresponding alternative wrapper function.
    Type: Application
    Filed: June 3, 2011
    Publication date: November 24, 2011
    Inventors: Gaurav S. Kc, Alfred V. Aho
  • Detecting and preventing malcode execution
    Patent number: 7971255
    Abstract: A system for detecting and halting execution of malicious code includes a kernel-based system call interposition mechanism and a libc function interception mechanism. The kernel-based system call interposition mechanism detects a system call request from an application, determines a memory region from which the system call request emanates, and halts execution of the code responsible for the call request if the memory region from which the system call request emanates is a data memory region. The libc function interception mechanism maintains an alternative wrapper function for each of the relevant standard libc routines, intercepts a call from an application to one or more libc routines and redirects the call into the corresponding alternative wrapper function.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: June 28, 2011
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Gaurav S. Kc, Alfred V. Aho