Apparatus, system, and method for preventing infection by malicious code
US8813229B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Feb 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/567
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to an apparatus for preventing infection by malicious code, comprising: a database in which files installed in an agent system, DNA values for each part of the files, and index information for indicating whether each file is normal or malicious are stored; a calculation unit which calculates a DNA value for a part of a file for which an execution is requested in the agent system; and a file inspection unit which searches the database to extract, in a group, files having the DNA value calculated by the calculation unit, inspects whether an object file is normal or malicious on the basis of the index information on the files extracted in a group, and allows the execution of the object file or makes a request for the calculation of DNA values of other parts which selectively include one part of the object file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.