Method for recovery of a computer program infected by a computer

Details Method for recovery of a computer program infected by a computer Method for recovery of a computer program infected by a computer

1991-05-24

1995-04-18

Baker, Stephen M.

Excavating

371 30, 371 671, G06F 1108, G06F 1216, G06K 903

Patent

active

054086426

ABSTRACT:
A recovery technique allows a computer program to be recovered from a program which has been infected with a computer virus. Prior to the program being infected, a unique fingerprint of the program is taken and stored along with data relating to the beginning portion of the program at a location separate from the program. A program thought to be infected is processed by generating a fingerprint of a string in the program utilizing the stored data. The fingerprint that is generated is compared with the stored fingerprint to determine whether or not the two fingerprints match. If the fingerprints match, the program is restored from the stored information and the string. If the fingerprints do not match, the value utilized to select the string can be incremented and the process repeated.

REFERENCES:
patent: 5050212 (1991-09-01), Dyson

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