Detection of scripting-language-based exploits using parse tree transformation
US8499283B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 20, 2011 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Jan 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0281
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for protecting client computers are described. One exemplary system includes an initial filter that gathers scripting-language-data from webpage data and a signature database of signatures of known scripting-language-data exploits. In addition, a parser generates a parse tree from the scripting-language-data, and a normalization and signature matching component reduces a complexity of the parse tree, generates a representation of at least a portion of a structure of the parse tree, and prevents the scripting-language-data from reaching an intended recipient if the representation matches one of the signatures of known scripting-language-data exploits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.