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:
Oct. 13, 2015
Filed:
May. 13, 2014
Qualcomm Incorporated, San Diego, CA (US);
Mihai Christodorescu, San Jose, CA (US);
Rajarshi Gupta, Sunnyvale, CA (US);
David Jerome Fiala, Raleigh, NC (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Methods and devices for detecting performance-degrading behaviors include identifying a data source component that inputs data into an application executing on a mobile device, and identifying a data sink component that consumes data output from the application. Using a measured runtime control-flow parameter, a likelihood that the data source component is a critical data resource may be determined. Using the probability value, a behavior model that identifies a mobile device feature associated with the critical data resource may be updated and used to determine whether the software application is malicious. Measured runtime control-flow parameters may include a program execution distance between data source and sink components based on heuristics. Determining program execution distances between data sources and sinks may include computing call graph distances by comparing a source call stack length and a sink call stack length, or by counting method invocations or functional calls between data sources and sinks.