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.

Date of Patent:
May. 02, 2017

Filed:

Feb. 03, 2015
Applicant:

F-secure Corporation, Helsinki, FI;

Inventor:

Daavid Hentunen, Helsinki, FI;

Assignee:

F-Secure Corporation, Helsinki, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 17/30 (2006.01); H04L 29/06 (2006.01); G06F 21/54 (2013.01);
U.S. Cl.
CPC ...
H04L 63/145 (2013.01); G06F 21/54 (2013.01);
Abstract

The invention relates to computer security and to systems and methods for detecting and protecting against malicious content such as computer viruses. Gateway () and security () computers for protecting a client computer () against dynamically generated malicious content. The gateway computer includes: a receiver configured to receive original content, the original content including a call to an original function, the call including an associated input. The gateway computer further includes: a content modifier unit configured to modify the original content to produce modified content, wherein the modified content includes at least a portion of the original content and a call to a shielding function, the shielding function being operable to cause the client computer to transmit an instruction to a security computer () to inspect the input associated with the call to the original function. The gateway computer further includes: a transmitter configured to transmit the original content to the security computer and to transmit the modified content to the client computer, thereby allowing, based on the original content, detection of dynamically generated malicious content.


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