Systems and method for identifying modified program data

Patent metadata

Field	Value
Publication number	US-2022152513-A1
Application number	US-202217592944-A
Country	US
Kind code	A1
Filing date	Feb 4, 2022
Priority date	Sep 21, 2020
Publication date	May 19, 2022
Grant date	—

Abstract

The technology described implements attestation programs that employ “code reuse” techniques. In particular, the technology relates to auto-generating attestation programs for, among other aspects, detecting whether a program has been modified. In one non-limiting example, the technology uses a tool that scans a software program (e.g., a video game) code for usable code sequences. The tool can automatically combine code sequences to generate a large number of attestation programs of different variety (e.g., memory checks, hashing).

First claim

At least the following is claimed:

1 . A system for detecting modifications to program data, comprising:
a processor; and a memory configured to store computer readable instructions that, when executed by the processor, cause the system to:
obtain program code for a first program configured for execution on a client device;
scan the program code for the first program for usable code sequences;
combine portions of the usable code sequences to form a first attestation program having a first attestation result;
store the first attestation program having the first attestation result into a database in the memory of the system;
transmit data associated with the first attestation program to the client device to run an attestation check against the first program executing on the client device, the attestation check generating a first attestation check result;
receive the first attestation check result from the client device;
compare the first attestation check result to the first attestation result associated with the first attestation program to determine if the first attestation result matches the first attestation check result; and
perform an action associated with the client device based on the comparison.

Assignees

• Nintendo Co Ltd

Inventors

• Tran David
• Borisov Eugene
• Stevens Tanner

Classifications

• A63F13/75

  Enforcing rules, e.g. detecting foul play or generating lists of cheating players · CPC title

• A63F13/73 Primary

  Authorising game programs or game devices, e.g. checking authenticity · CPC title

• A63F13/35

  Details of game servers · CPC title

• G06F8/433

  Dependency analysis; Data or control flow analysis · CPC title

• G06F21/51

  at application loading time, e.g. accepting, rejecting, starting or inhibiting executable software based on integrity or source reliability · CPC title