Patents Assigned to Virsec Systems, Inc.
  • Automated runtime detection of malware
    Patent number: 10079841
    Abstract: One example method and correspond apparatus extracts a model of a computer application during load time and stores the model of the computer application in a database. This example method and corresponding apparatus also inserts instructions into the computer application to collect data at runtime. This example method and corresponding apparatus then analyzes the data collected at runtime against the stored model of the computer application to detect one or more security events and tracks the one or more security events using a state machine.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: September 18, 2018
    Assignee: Virsec Systems, Inc.
    Inventors: Satya Vrat Gupta, Raymond F. DeMeo
  • Automated code lockdown to reduce attack surface for software
    Patent number: 9727729
    Abstract: In an example embodiment, a system determines a set of instructions from the available instructions for a computer application. The determined set of instructions provides specific functionality of the computer application. The system may determine the set of instructions by performing functional testing and negative testing on the specific functionality. The system may reorganize and randomize the set of instructions in memory and write the reorganized set of instructions to a smaller memory space. For each available instruction not in the set of instructions, the system changes the respective instruction to inoperative to prevent execution of the respective instruction. The system may change the respective instruction to inoperative by overwriting the instruction with a NOP instruction. The system then captures a memory address of the computer application being accessed at runtime.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: August 8, 2017
    Assignee: Virsec Systems, Inc.
    Inventor: Satya Vrat Gupta
  • System and methods for run time detection and correction of memory corruption
    Patent number: 8966312
    Abstract: A method or apparatus detects a memory corruption of at least one portion of memory during run-time and corrects the memory corruption of the at least one portion of memory by replacing the at least one portion of memory with a backup of the at least one portion of memory. In this way, memory corruption can be corrected in a timely fashion while minimizing security risks.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: February 24, 2015
    Assignee: Virsec Systems, Inc.
    Inventors: Satya V. Gupta, Prashant Shenoy
  • System and methods for run time detection and correction of memory corruption
    Patent number: 8510596
    Abstract: A method or apparatus detects a memory corruption of at least one portion of memory during run-time and corrects the memory corruption of the at least one portion of memory by replacing the at least one portion of memory with a backup of the at least one portion of memory. In this way, memory corruption can be corrected in a timely fashion while minimizing security risks.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: August 13, 2013
    Assignee: Virsec Systems, Inc.
    Inventors: Satya V. Gupta, Prashant Shenoy