Method and system for detection of malicious bots
US9294502B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2014 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Feb 18, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1416
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A computerized method and system for detecting access of a protected server by malicious bots are provided. The method comprises receiving a request from a client machine; generating a polymorphic script code challenge that includes a scrambled secret; sending the polymorphic script code challenge to the client machine in response to the received request; receiving a token from the client machine in response to the polymorphic script code challenge; comparing contents of the token to the secret in its unscrambled form; and determining the client machine to be a malicious bot in an event including any one of the token does not match the secret and a token has not been received, wherein a new polymorphic script code challenge containing a new scrambled secret is generated for each new request received from a client machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.