James L Whittaker

US Patent:

7162715, Jan 9, 2007

Filed:

Mar 17, 2003

Appl. No.:

10/390397

Inventors:

James A. Whittaker - Indialantic FL, US
Rahul Chaturvedi - Melbourne FL, US
John R. Wagner - Melbourne FL, US

Assignee:

I-Squared, Inc. - Melbourne FL

International Classification:

G06F 9/44

US Classification:

717127, 717130

Abstract:

A method of executing a program in a controlled environment includes initiating execution of an operating system with which the program is adapted to execute, inserting redirection logic at the beginning of the program, and executing the program such that the redirection logic is executed. A current instruction pointer is stored, and execution control is redirected to a program loader. The program loader selects a first block of instructions of the program, based at least in part on the stored current instruction pointer. This selected block of instructions is manipulated to provide a first phantom instruction block, which is executed in the controlled environment. This manipulation includes copying at least a portion of the selected first block to form the first phantom instruction block.

US Patent:

20020178375, Nov 28, 2002

Filed:

Sep 12, 2001

Appl. No.:

09/952208

Inventors:

James Whittaker - West Melbourne FL, US
Andres De Vivanco - Palm Bay FL, US
Rahul Chaturvedi - Melbourne FL, US

Assignee:

Harris Corporation - Melbourne FL

International Classification:

G06F011/30

US Classification:

713/200000

Abstract:

A host computer including an operating system and at least one local resource controlled thereby is protected from malicious mobile code based upon a protective program stored therein. The protective program identifies mobile code received by the host computer, and modifies the operating system for monitoring access of the local resource by the mobile code. The protective program further includes transferring control of the local resource to the protective program if the mobile code calls the local resource, and determining whether the mobile code is malicious. If the mobile code is malicious, the protective program blocks access to the local resource by the mobile code. If the protective program can not determine if the mobile code is malicious or benign, the mobile code is allowed to execute while changes made to the host system by the mobile code are recorded so that if the user later determines that the mobile code is malicious, the host system can be restored to an initial condition based upon the recorded changes.

US Patent:

20070028225, Feb 1, 2007

Filed:

Sep 27, 2006

Appl. No.:

11/528982

Inventors:

James Whittaker - Indialantic FL, US
Rahul Chaturvedi - Melbourne FL, US
John Wagner - Melbourne FL, US

International Classification:

G06F 9/44

US Classification:

717162000, 717166000

Abstract:

A method of executing a program in a controlled environment includes initiating execution of an operating system with which the program is adapted to execute, inserting redirection logic at the beginning of the program, and executing the program such that the redirection logic is executed. A current instruction pointer is stored, and execution control is redirected to a program loader. The program loader selects a first block of instructions of the program, based at least in part on the stored current instruction pointer. This selected block of instructions is manipulated to provide a first phantom instruction block, which is executed in the controlled environment. This manipulation includes copying at least a portion of the selected first block to form the first phantom instruction block.