Computer network malicious code scanner
US5983348A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Sep 10, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A network scanner for security checking of application programs (e.g. Java applets or Active X controls) received over the Internet or an Intranet has both static (pre-run time) and dynamic (run time) scanning. Static scanning at the HTTP proxy server identifies suspicious instructions and instruments them e.g. a pre-and-post filter instruction sequence or otherwise. The instrumented applet is then transferred to the client (web browser) together with security monitoring code. During run time at the client, the instrumented instructions are thereby monitored for security policy violations, and execution of an instruction is prevented in the event of such a violation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.