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:
Aug. 27, 2013
Filed:
Jun. 27, 2008
Aaron Goldsmid, New York, NY (US);
Ping Xie, Redmond, WA (US);
Scott Miller, Redmond, WA (US);
Nir Ben Zvi, Redmond, WA (US);
Nathan Jeffrey Ide, Bothell, WA (US);
Manoj R. Mehta, Redmond, WA (US);
Aaron Goldsmid, New York, NY (US);
Ping Xie, Redmond, WA (US);
Scott Miller, Redmond, WA (US);
Nir Ben Zvi, Redmond, WA (US);
Nathan Jeffrey Ide, Bothell, WA (US);
Manoj R. Mehta, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Presented is an anti-tampering method that validates and protects specific sections of a binary file. In one embodiment, this method permits a proxy engine to execute (via emulation by a virtual machine) the protected code on behalf of the binary in kernel mode upon successful completion of an integrity check. The integrity check can optionally check only the specific parts of code that the developer wishes to validate. The integrity check can cross binary boundaries. Moreover, the integrity check can be done on a hard drive or in memory. Furthermore, since the encrypted code is executed by the proxy engine in kernel mode, hackers are further deterred from modifying the code. Additionally, a method of creating a protected binary file is described herein.