Multilevel intent analysis apparatus & method for email filtration
AssigneeBarracuda Inc.
InventorsZACHARY LEVOW, DEAN DRAKO, SHAWN ANDERSON
Life of this patent
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Abstract
A method for filtering email which contains links to uniform resource identifiers which disguise the content and identity of spam sites by multiple serial redirection.
Claims20
An email filtering apparatus comprising a processor configured to receive an electronic document, scan the document for an embedded uniform resource identifier, and transmit a query to a server having a database of categorized websites.
The apparatus of claim one further configured to scan the electronic document for a pattern expression which exhorts manual navigation to a website, and to transmit a query of that website to a server having a database of categorized websites.
A remote computing system communicatively coupled to a plurality of email filtering apparatus, the computing system configured as a database of categorized websites enabled to receive a query from the email filtering apparatus, to operate as a browser on a first uniform resource identifier, to request a second resource based on redirection received in response to the first resource if one or more links in the second resource are found in the database of categorized websites.
A method comprising the steps following:
- scanning an electronic document for at least one embedded uniform resource identifier;
- and
- querying a database of categorized uniform resource identifiers to determine if the embedded uniform resource identifier matches.
Dependencies are inferred from the claim text.