The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2015
Filed:
Jul. 06, 2005
William A. Arbaugh, Ellicott City, MD (US);
Nick Louis Petroni, Jr., Glassboro, NH (US);
Timothy Jon Fraser, Redmond, WA (US);
Jesus Maria Molina-terriza, Washington, DC (US);
William A. Arbaugh, Ellicott City, MD (US);
Nick Louis Petroni, Jr., Glassboro, NH (US);
Timothy Jon Fraser, Redmond, WA (US);
Jesus Maria Molina-Terriza, Washington, DC (US);
University of Maryland College Park, College Park, MD (US);
Abstract
A host system integrity monitor for monitoring memory, operating systems, applications, domain manager, and other host system's structures of interest is isolated and independent of the CPU and operating system of commodity systems. The system requires no modifications to the protected (monitored) host's software, and operates correctly even when the host system is compromised. Either arranged as a stand-alone computer on the add-in card which communicates with the monitored host system through the PCI bus, or as the co-processor based monitor located on the motherboard of the host system, or residing on one of the virtual CPU while the monitored system resides on another virtual CPU, or residing within the domain manager of the host system, the monitor monitors the integrity of the examined structure by calculating hash values of the structure, comparing them with expected hash values, and sending error reports once the discrepancy between these values is detected.