The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2010
Filed:
May. 05, 2006
Craig Sprosts, San Francisco, CA (US);
Scot Kennedy, San Bruno, CA (US);
Daniel Quinlan, San Bruno, CA (US);
Larry Rosenstein, San Bruno, CA (US);
Charles Slater, San Bruno, CA (US);
Craig Sprosts, San Francisco, CA (US);
Scot Kennedy, San Bruno, CA (US);
Daniel Quinlan, San Bruno, CA (US);
Larry Rosenstein, San Bruno, CA (US);
Charles Slater, San Bruno, CA (US);
Ironport Systems, Inc., San Bruno, CA (US);
Abstract
Early detection of computer viruses and other message-borne threats is provided by applying heuristic tests to message content and examining sender reputation information when no virus signature information is available. As a result, a messaging gateway can suspend delivery of messages early in a virus outbreak, providing sufficient time for updating an anti-virus checker that can strip virus code from the messages. A dynamic and flexible threat quarantine queue is provided with a variety of exit criteria and exit actions that permits early release of messages in other than first in, first-out order. A message scanning method is described in which early exit from parsing and scanning can occur by matching threat rules only to selected message elements and stopping rule matching as soon as a match on one message element exceeds a threat threshold.