Detection of computer viruses spanning multiple data streams

Details Detection of computer viruses spanning multiple data streams Detection of computer viruses spanning multiple data streams

1997-08-11

1999-12-21

Beausoliel, Jr., Robert W.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

714 38, G06F 1214, G06F 1100

Patent

active

060063297

ABSTRACT:
A computer system (100) and method detect computer viruses spanning multiple data streams. A virus signature is written in the form of a Boolean expression, where the operands of the Boolean expression are signatures of components of the virus. A processor (110) identifies data streams to be scanned and scans the identified data streams for components of viruses. Using the scan results, the processor (110) then evaluates the virus signatures, and, for any Boolean expression satisfied, the processor (110) determines that the virus corresponding to the expression exists in the scanned data streams.

REFERENCES:
patent: 5452442 (1995-09-01), Kephart
Vesselin Bontchev, "Possible macro virus attacks and how to prevent them", Computers & Security, pp. 595-626, Dec. 1996.

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