Computer virus detection and removal
US6802028B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1997 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Oct 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/567
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided for detecting viruses in a computer system without relying on possibly infected system software or a possibly infected standard BIOS. The invention uses a separate BIOS designed specifically for virus detection and removal. This trusted BIOS is tailored to the controller hardware. The invention can detect viruses by detecting inconsistencies between results returned by the standard BIOS and results obtained using the trusted BIOS. The invention may also provide a virus remover. The virus remover relocates facade structures to their proper location, reconstructs boot sectors and Master Boot Records, and otherwise removes viruses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.