Method and apparatus for protecting a computer system from computer viruses
US5511184A · kind A · utility
88Cited by
16References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1993 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Oct 22, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/575
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for protection against attack by computer virus. Detection and prevention of a virus attack at boot time is achieved by write-protecting the storage devices of the system before the booting process and by detecting the presence of virus by checking integrity of the interrupt vectors of the system. Similar checks may be run on the system modules, device drivers, and application programs, using, for example, a checksum to insure that no further viruses are present in those programs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.