Non-invasive program execution protection
US11294783B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2020 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Sep 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/366
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for use in a computing device having a processor, the method comprising: executing a computer program on the processor; while the computer program is running, detecting whether any of a plurality of transition instructions of the computer program is executed, the detecting being performed by using resources that are external to the computer program; in response to detecting that a given one of the transition instructions is executed, detecting whether a current execution flow of the computer program matches a control flow graph for the computer program; and performing a countermeasure action based on one of a mismatch of the current execution flow of the computer program and the control flow graph or a current value of a memory location associated with the computer program; wherein the control flow graph for the computer program is generated by simulating an execution of the computer program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.