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:
Jul. 05, 2016
Filed:
Mar. 28, 2014
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventor:
Amit Klein, Herzliya, IL;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2006.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); G06F 2009/45591 (2013.01);
Abstract
Detecting the operation of a virtual machine by identifying seed candidates from sets of random numbers generated at a computer, where each of the sets includes multiple random numbers, identifying candidate performance counter frequencies from the seed candidates and from timing information associated with the sets of random numbers, and determining that the computer is operating as a virtual machine if any of the candidate performance counter frequencies is consistent with a predefined virtual machine performance counter frequency.