Virus protection in computer systems
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United States of America Patent
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-
Sep 1, 1998
Grant Date -
N/A
app pub date -
Jul 26, 1996
filing date -
Jul 31, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for preventing the virus infection of computer systems from a diskette carrying a boot sector virus. System ROM code in the computer system includes a routine that is executed before passing control to a bootable media. This routine is designed to execute when Power On Self Test has completed and the boot record from the bootable media, either hardfile or diskette, has been loaded into system memory. The boot record is scanned for the presence of known boot sector viruses, signatures of which are stored in FLASH ROM within the computer system.
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