Nullification of malicious code by data file transformation
US8051482B2 · kind B2 · utility
2Cited by
3References
22Claims
0Family size
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Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Aug 31, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/568
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To nullify any malicious code potentially contained within a data file, a transformation engine randomly selects a transformation from a number of available file transformations each arranged to alter the bit pattern of a file to which it is applied while still enabling manifestation of at least some of the file's semantic content to a user. The selected transformation is then applied to the data file to produce a transformed file. Preferably, the transformation engine runs in a dedicated virtual machine of a computing platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.