SYSTEM AND METHOD FOR ASSESSING DATA OBJECTS ON MOBILE COMMUNICATIONS DEVICES

• US 20170230397A1
• Filed: 04/26/2017
• Published: 08/10/2017
• Est. Priority Date: 10/21/2008
• Status: Active Grant

• Current Assignee: Lookout Incorporated
• Original Assignee: Lookout Incorporated
• Inventors: Burgess, James David, Salomon, Ariel, Wyatt, Timothy Micheal, Golombek, David, Lineberry, Anthony McKay, Barton, Kyle, Evans, Daniel Lee, Mahaffey, Kevin Patrick, Richardson, David Luke
• Granted Patent: US 9,860,263 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 21/554 involving event detection and direct action
• CPC Class Codes: G06F 21/577 Assessing vulnerabilities and evaluating computer system security
• CPC Class Codes: H04L 63/0227 Filtering policies mail message filtering H04L51/212
• CPC Class Codes: H04L 63/123 received data contents, e.g. message integrity
• CPC Class Codes: H04L 63/1408 by monitoring network traffic monitoring network traffic per se H04L43/00
• CPC Class Codes: H04L 63/1425 Traffic logging, e.g. anomaly detection
• CPC Class Codes: H04L 63/1433 Vulnerability analysis
• CPC Class Codes: H04L 63/145 the attack involving the propagation of malware through the network, e.g. viruses, trojans or worms
• CPC Class Codes: H04L 63/166 at the transport layer
• CPC Class Codes: H04L 69/14 Multichannel or multilink protocols
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 12/12 Detection or prevention of fraud
• CPC Class Codes: H04W 12/67 Risk-dependent, e.g. selecting a security level depending on risk profiles

Abstract

A server receives from a mobile communication device information about a data object (e.g., application) on the device when the device cannot assess the data object. The server uses the information along with other information stored at the server to assess the data object. Based on the assessment, the device may be permitted to access the data object or the device may not be permitted to access the data object. The other information stored at the server can include data objects known to be bad, data objects known to be good, or both.

Claims

1. A non-transitory, non-volatile, non-printed computer-readable storage medium having stored thereon a plurality of instructions, which, when executed by a processor of a server, cause the server to perform the steps of a method for assessing a data object present on a mobile communications device, the assessment provided by a server, the method comprising:

before receiving data identifying at least a portion of the data object present on the mobile communications device at the server, determining if previously stored definition information stored in a local store at the mobile communications device corresponds to the data identifying at least a portion of the data object present on the mobile communications device, the local store storing a corresponding assessment for the previously stored definition information; and

,

if the previously stored definition information in the local store at the mobile communications device does not correspond to the data identifying at least a portion of the data object present on the mobile communications device, then at the server, receiving data identifying at least a portion of the data object present on the mobile communications device

at the server, determining if previously-stored definition information for a data object corresponds to the received data, the definition information stored in a data store accessible by the server, the data store storing a corresponding assessment for the definition information;

if the previously-stored definition information corresponds to the received data from the mobile communications device, then at the server, providing the assessment of the data object present on the mobile communications device corresponding to the previously-stored definition information.

2. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, wherein the data identifying at least a portion of the data object present on the mobile communications device is application data for the data object present on the mobile communications device.

3. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, wherein the data identifying at least a portion of the data object present on the mobile communications device is behavioral data for the data object present on the mobile communications device.

4. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, wherein the data identifying at least a portion of the data object present on the mobile communications device is metadata for the data object present on the mobile communications device.

5. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, wherein the data identifying at least a portion of the data object present on the mobile communications device includes at least a portion of the data object present on the mobile communications device.

6. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, wherein the previously stored definition information includes a hash identifier for the data object present on the mobile communications device.

7. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, wherein the previously stored definition information includes a package name for the data object present on the mobile communications device.

8. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, wherein the previously stored definition information includes at least a portion of the data object present on the mobile communications device.

9. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, wherein the previously stored definition information includes an identifier for the data object present on the mobile communications device.

10. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, further comprising:

if the data identifying at least a portion of the data object present on the mobile communications device does not correspond to previously stored definition information stored in the data store accessible to the server, then analyzing, by the server, at least a portion of the data identifying at least a portion of the data object present on the mobile communications device to determine an assessment corresponding to the data identifying at least a portion of the data object present on the mobile communications device; and

,

storing the assessment corresponding to the data identifying at least a portion of the data object present on the mobile communications device in the data store accessible to the server.

11. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 10, wherein analyzing at least a portion of the data identifying at least a portion of the data object present on the mobile communications device comprises analyzing by a decision component accessible by the server.

12. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, further comprising:

if the data identifying at least a portion of the data object present on the mobile communications device does not correspond to definition information stored in the data store accessible to the server, then analyzing, by the server, at least a portion of the data identifying at least a portion of the data object present on the mobile communications device to determine an assessment corresponding to the data identifying at least a portion of the data object present on the mobile communications device;

requesting, by the server, additional data pertaining to the data object present on the mobile communications device;

analyzing, by the server, at least a portion of the additional data pertaining to the data object present on the mobile communications device to determine an assessment corresponding to the data object present on the mobile communications device; and

storing the determined assessment in the data store accessible to the server.

13. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, further comprising, after the step of providing the assessment, if the assessment indicates that the data object present on the mobile communications device is undesirable, then at the server, transmitting instructions to the mobile communications device to prevent the mobile communications device from accessing the data object present on the mobile communications device.

14. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 1, further comprising, after the step of providing the assessment, if the assessment indicates that the data object present on the mobile communications device is undesirable, then at the server, transmitting a notification to the mobile communications device.

15. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 14, wherein the notification is a warning.

16. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 14, wherein the notification is an instruction to uninstall the data object.

17. A non-transitory, non-volatile, non-printed computer-readable storage medium having stored thereon a plurality of instructions, which, when executed by a processor of a server, cause the server to perform the steps of a method for assessing a data object present on a mobile communications device by a server comprising:

receiving data from the mobile communications device by the server, the received data identifying the data object present on the mobile communications device;

at the server, analyzing the received data by a known good component resident on the server to provide an assessment of the data object present on the mobile communications device;

if the analysis of the received data by the known good component on the server results in an assessment that the data object is allowed, then at the server, transmitting instructions to the mobile communications device allowing the mobile communications device to access the assessed data object present on the mobile communications device;

if, at the server, the analysis of the received data by the known good component on the server does not result in an assessment that the data object is allowed, then, at the server, analyzing the received data by a known bad component resident on the server to provide an assessment of the data object present on the mobile communications device; and

if, at the server, the analysis of the received data by the known bad component on the server results in an assessment that the data object is undesirable, then, at the server, transmitting instructions to the mobile communications device preventing the mobile communications device from accessing the data object present on the mobile communications device.

18. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 17, wherein the received data identifying the data object present on the mobile communications device is application data for the data object present on the mobile communications device.

19. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 17, wherein the received data identifying the data object present on the mobile communications device is behavioral data for the data object present on the mobile communications device.

20. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 17, wherein the received data identifying the data object present on the mobile communications device is metadata for the data object present on the mobile communications device.

21. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 17, wherein the received data identifying at least a portion of the data object present on the mobile communications device includes at least a portion of the data object present on the mobile communications device.

22. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 17, further comprising:

prior to receiving data identifying the data object present on the mobile communications device by the server, at the mobile communications device, analyzing the data identifying the data object present on the mobile communications device by a known good component resident on the mobile communications device to provide an assessment of the data object present on the mobile communications device; and

,

prior to receiving data identifying the data object present on the mobile communications device, if the analysis of the data identifying the data object present on the mobile communications device by the known good component on the mobile communications device does not result in an assessment that the data object is allowed, then, at the mobile communications device, transmitting metadata for the data identifying the data object present on the mobile communications device to the server, and, at the server, proceeding with analyzing the received metadata by the known good component on the server.

23. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 17, further comprising:

prior to receiving data identifying the data object present on the mobile communications device by the server, at the mobile communications device, analyzing the data identifying the data object present on the mobile communications device by a known bad component resident on the mobile communications device to provide an assessment of the data object present on the mobile communications device; and

,

if the analysis of the data identifying the data object present on the mobile communications device by the known bad component on the mobile communications device does not result in an assessment that the data object is undesirable, then, at the mobile communications device transmitting metadata for the data identifying the data object present on the mobile communications device to the server, and proceeding with analyzing the metadata to provide an assessment of the data object present on the mobile communications device.

24. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 17, further comprising:

prior to receiving data identifying the data object present on the mobile communications device by the server, at the mobile communications device, analyzing the data identifying the data object present on the mobile communications device by a known good component resident on the mobile communications device to provide an assessment of the data object present on the mobile communications device;

if the analysis of the data identifying the data object present on the mobile communications device by the known good component on the mobile communications device does not result in an assessment that the data object is allowed, then analyzing the data identifying the data object present on the mobile communications device by a known bad component resident on the mobile communications device to provide an assessment of the data object present on the mobile communications device; and

,

if the analysis of the data identifying the data object present on the mobile communications device by the known bad component on the mobile communications device does not result in assessment that the data object is undesirable, then transmitting at least a portion of the data identifying the data object present on the mobile communications device to the server, and at the server, proceeding with analyzing the received data to provide an assessment of the data object present on the mobile communications device.

25. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 17, further comprising:

prior to receiving data identifying the data object present on the mobile communications device by the server, at the mobile communications device, analyzing the data identifying the data object present on the mobile communications device by a known bad component resident on the mobile communications device to provide an assessment of the data object present on the mobile communications device;

if the analysis of the data identifying the data object present on the mobile communications device by the known bad component on the mobile communications device does not result in an assessment that the data object is undesirable, then analyzing the data by a known good component resident on the mobile communications device to provide an assessment of the data object present on the mobile communications device; and

,

if the analysis of the data identifying the data object present on the mobile communications device by the known good component on the mobile communications device does not result in an assessment that the data object is allowed, then transmitting at least a portion of the data identifying the data object present on the mobile communications device to the server, and at the server, proceeding with analyzing the received data to provide an assessment of the data object present on the mobile communications device.

26. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 17, further comprising:

if the assessment of the data identifying the data object present on the mobile communications device by the known good component resident on the mobile communications device does not result in a positive assessment that the data object is allowed, and if the analysis of the data identifying the data object present on the mobile communications device by the known bad component resident on the mobile communications device does not result in an assessment that the data object is undesirable, then

analyzing the data identifying the data object present on the mobile communications device by the server to provide an assessment identifying the data object present on the mobile communications device; and

,

storing the assessment of the data identifying the data object present on the mobile communications device on a data store accessible by the server.

27. A non-transitory, non-volatile, non-printed computer-readable storage medium having stored thereon a plurality of instructions, which, when executed by a processor of a server, cause the server to perform the steps of a method for assessing a data object present on a mobile communications device, the assessment provided by a server, the method comprising:

at the mobile communications device, determining, by the mobile communications device, if previously stored definition information in a local store corresponds to the data object present on the mobile communications device;

if the determination at the mobile communications device shows that the previously stored definition information in the local store does not correspond to the data object present on the mobile communications device, then, at a server, receiving data identifying at least a portion of the data object present on the mobile communications device;

determining, by the server, if previously stored definition information for a data object corresponds to the received data, the definition information stored in a data store accessible to the server, the data store storing a corresponding assessment for the definition information;

if the previously stored definition information corresponds to the received data, then, at the server, retrieving the assessment corresponding to the previously stored definition information; and

,

if the previously stored definition information in the data store accessible to the server does not correspond to the received data, then analyzing, by the server, at least a portion of the received data identifying at least a portion of the data object present on the mobile communications device to determine an assessment corresponding to the data object present on the mobile communications device.

28. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 27, wherein the data identifying at least a portion of the data object present on the mobile communications device is application data for the data object present on the mobile communications device.

29. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 27, wherein the data identifying at least a portion of the data object present on the mobile communications device is behavioral data for the data object present on the mobile communications device.

30. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 27, wherein the data identifying at least a portion of the data object present on the mobile communications device is metadata for the data object present on the mobile communications device.

31. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 27, wherein the data identifying at least a portion of the data object present on the mobile communications device includes at least a portion of the data object present on the mobile communications device.

32. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 27, wherein analyzing at least a portion of the received data identifying at least a portion of the data object present on the mobile communications device, by the server, to determine the assessment comprises analyzing the data by a decision component accessible by the server.

33. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 27, further comprising:

requesting, by the server, additional data pertaining to the data object present on the mobile communications device; and

,

analyzing the additional data to determine an assessment corresponding to the data object present on the mobile communications device.

34. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 27, further comprising, after the step of providing the assessment, if the assessment indicates that the data object present on the mobile communications device is undesirable, then at the server, transmitting instructions to the mobile communications device to prevent the mobile communications device from accessing the data object present on the mobile communications device.

35. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 27, further comprising, after the step of providing the assessment, if the assessment indicates that the data object on the mobile communications device is undesirable, then at the server, transmitting a notification to the mobile communications device.

36. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 35, wherein the notification is a warning.

37. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 35, wherein the notification is an instruction to uninstall the data object.

38. The non-transitory, non-volatile, non-printed computer-readable storage medium of claim 35, wherein the notification is an instruction preventing the mobile communications device from accessing the data object.

39. A method comprising:

storing, by a server, for each of at least one data object;

(i) definition information for the data object, and

(ii) an assessment of the data object corresponding to the definition information;

receiving, by the server, data identifying at least a portion of a first data object on a first mobile communications device after the first mobile communications device has determined that a local store at the first mobile communications device does not include definition information that corresponds to the data identifying at least a portion of the first data object;

determining, by the server, whether definition information stored by the server corresponds to the received data; and

,

when the server determines that first definition information stored by the server corresponds to the received data;

(i) retrieving, by the server, a first assessment of the first data object corresponding to the first definition information, and

(ii) providing, by the server, the first assessment to at least one of;

the first mobile communications device, a second mobile communications device, an administrator, a user, and storage accessible to the server.

40. A method comprising:

storing, by a server, for each of at least one data object;

(i) definition information for the data object, and

(ii) an assessment of the data object corresponding to the definition information;

receiving, by the server, data identifying at least a portion of a first data object on a first mobile communications device after the first mobile communications device has determined has determined that definition information stored at the first mobile communications device does not correspond to the data identifying at least a portion of the first data object;

determining, by the server, whether definition information stored by the server corresponds to the received data; and

when the server determines that first definition information stored by the server corresponds to the received data;

(i) retrieving, by the server, a first assessment of the first data object corresponding to the first definition information, and

(ii) providing, by the server, the first assessment to at least one of;

the first mobile communications device, a second mobile communications device, an administrator, a user, and storage accessible to the server; and

when the server determines that definition information stored by the server does not correspond to the received data;

(i) analyzing, by the server, at least a portion of the received data identifying at least a portion of the data object on the mobile communications device to determine a second assessment of the first data object, and

(ii) providing, by the server, the second assessment to at least one of;

the first mobile communications device, a second mobile communications device, an administrator, and a a user.

41. A method comprising:

receiving, by a server, data identifying a data object on a mobile communications device; and

when the analysis, by the known good component, of the received data results in a retrieved assessment that the data object is allowed;

(i) analyzing, by a known good component on the server, the received data to retrieve an assessment of the data object, the assessment stored by the server, and

(ii) transmitting, by the server, instructions to the mobile communications device to permit access to the data object; and

when the analysis of the received data by the known good component does not result in a retrieved assessment that the data object is allowed, analyzing, by a known bad component on the server, the received data to retrieve an assessment of the data object, the assessment stored on the server; and

when the analysis by the known bad component on the server of the received data results in a retrieved assessment that the data object is undesirable, transmitting, by the server, instructions to the mobile communications device to deny access to the data object.

42. The method of claim 41 wherein the data identifying the data object on the mobile communications device is received at the server after the mobile communications device analyzes the data identifying the data object on the mobile communications device using a known good component on the mobile communications device, and

the analysis by the known good component on the mobile communications device does not result in an assessment that the data object on the mobile communications device is allowed.

43. The method of claim 41, wherein the data identifying the data object on the mobile communications device includes metadata for data identifying the data object on the mobile communications device, and the data identifying the data object on the mobile communications device is received by the server after an analysis of the data identifying the data object on the mobile communications device by a known good component on the mobile communications device does not result in an assessment that the data object on the mobile communications device is allowed.

44. The method of claim 41 wherein the data identifying the data object on the mobile communications device is received by the server after the mobile communications device analyzes the data identifying the data object on the mobile communications device using a known bad component stored on the mobile communications device, and

the analysis does not result in an assessment that the data object is undesirable.

45. The method of claim 41 wherein the data identifying the data object on the mobile communications device includes metadata for data identifying the data object on the mobile communications device, and the data identifying the data object on the mobile communications device is received by the server after an analysis of the data identifying the data object on the mobile communications device by a known bad component on the mobile communications device does not result in an assessment that the data object on the mobile communications device is undesirable.

46. The method of claim 41 wherein the data identifying the data object on the mobile communications device is received at the server:

(i) after the mobile communications device analyzes the data identifying the data object on the mobile communications device using a known good component stored on the mobile communications device, and the analysis by the known good component does not result in an assessment that the data object is allowed, and then

(ii) after the mobile communications device analyzes the data identifying the data object on the mobile communications device using a known bad component on the mobile communications device to provide an assessment of the data object on the mobile communications device, and the analysis of the data identifying the data object on the mobile communications device using the known bad component on the mobile communications device does not result in an assessment that the data object is undesirable, the method further comprising;

receiving, by the server, at least a portion of the data identifying the data object on the mobile communications device from the mobile communications device; and

analyzing, by the server, the received data to provide an assessment of the data object on the mobile communications device.

47. The method of claim 41 wherein the data identifying the data object on the mobile communications device is received by the server:

(i) after the mobile communications device analyzes the data identifying the data object on the mobile communications device using a known bad component on the mobile communications device, and the analysis by the known bad component does not result in an assessment that the data object is undesirable, and then

(ii) after the mobile communications device analyzes the data identifying the data object on the mobile communications device using a known good component on the mobile communications device to provide an assessment of the data object on the mobile communications device, and the analysis of the data identifying the data object on the mobile communications device using the known good component does not result in an assessment that the data object is allowed, the method further comprising;

receiving, by the server, at least a portion of the data identifying the data object on the mobile communications device from the mobile communications device; and

analyzing, by the server, the received data to provide an assessment of the data object on the mobile communications device.

48. The method of claim 41 wherein the receiving by the server the data identifying the data object on the mobile communications device is in response to:

an analysis of the data identifying the data object on the mobile communications device using a known good component on the mobile communications device that does not result in a positive assessment that the data object is allowed; and

an analysis of the data identifying the data object on the mobile communications device using a known bad component on the mobile communications device that does not result in an assessment that the data object is undesirable.

49. The method of claim 41 further comprising:

transmitting, by the server, instructions to the mobile communications device to permit access to the data object, when;

(i) the analysis of the received data using the known bad component does not result in an assessment that the data object is undesirable, and

(ii) the analysis of the received data using the known good component does not result in an assessment that the data object is allowed.

50. The method of claim 41 comprising:

transmitting, by the server, instructions to the mobile communications device to deny access to the data object, when;

(i) the analysis of the received data using the known bad component does not result in an assessment that the data object is undesirable, and

(ii) the analysis of the received data using the known good component does not result in an assessment that the data object is allowed.

51. A method comprising:

receiving, by a server, data identifying a data object on a mobile communications device;

analyzing, by the server, the received data using a known bad component to retrieve an assessment of the data object stored by the server; and

;

(i) when the analysis, by the server, of the received data using the known bad component results in an assessment that the data object is undesirable, transmitting, by the server, instructions to the mobile communications device to deny access to the data object, and

(ii) when the analysis, by the server, of the received data using the known bad component does not result in the assessment that the data object is undesirable, analyzing, by the server, the received data using a known good component to retrieve an assessment of the data object stored on the server, and, when the analysis, by the server, of the received data by the known good component results in an assessment that the data object is allowed, transmitting instructions to the mobile communications device to permit access to the data object.

52. The method of claim 51 further comprising:

when the analysis, by the server, of the received data using the known bad component does not result in the assessment that the data object is undesirable, and when the analysis, by the server, of the received data using the known good component does not result in the assessment that the data object is allowed, transmitting, by the server, instructions to the mobile communications device to permit access to the data object.

53. The method of claim 51 further comprising:

when the analysis of the received data using the known bad component does not result in the assessment that the data object is undesirable, and when the analysis of the received data using the known good component does not result in the assessment that the data object is allowed, transmitting, by the server, instructions to the mobile communications device to deny access to the data object.