Method and system for reducing an impact of malware during a booting sequence
US8478974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2010 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Nov 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/74
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods for reducing the impact of malware during a booting sequence for an interrupt driven computing device are disclosed. One or more parameters associated with an interrupt vector table (IVT) are manipulated to force the computing device into a clean state following a system level portion of the booting sequence. In another embodiment, occurring prior to the loading of an operating system or a call to a non-returnable main( ) function, one or more unused interrupt vectors in an IVT are replaced. A function filter is implemented for one or more interrupt vectors in the IVT to disallow unnecessary interrupt functions from being executed. One or more required interrupt vector functions are replaced with one or more corresponding custom vector functions. One or more memory locations are wiped if the one or more memory locations do not hold at least a portion of the IVT and/or the interrupt vector functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.