Context Aware Network Security Monitoring for Threat Detection

• US 20130305357A1
• Filed: 12/06/2012
• Published: 11/14/2013
• Est. Priority Date: 11/18/2010
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Ayyagari, Arun, Aldrich, Timothy M., Corman, David E., Gutt, Gregory M., Whelan, David A.
• Granted Patent: US 9,215,244 B2
• Time in Patent Office: Days
• US Class Current: 726/22
• CPC Class Codes: G06F 21/552 involving long-term monitoring or reporting
• CPC Class Codes: G06F 9/00 Arrangements for program control, e.g. control units program control for peripheral devices G06F13/10
• CPC Class Codes: H04B 7/18593 Arrangements for preventing unauthorised access or for providing user protection arrangements for secret or secure communication H04L9/00
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor
• CPC Class Codes: H04L 41/069 using logs of notifications; Post-processing of notifications
• CPC Class Codes: H04L 43/04 Processing captured monitoring data, e.g. for logfile generation
• CPC Class Codes: H04L 43/0817 by checking functioning
• CPC Class Codes: H04L 43/0876 Network utilisation, e.g. volume of load or congestion level
• CPC Class Codes: H04L 43/12 Network monitoring probes
• CPC Class Codes: H04L 63/14 for detecting or protecting against malicious traffic
• 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 63/166 at the transport layer
• CPC Class Codes: H04L 67/306 User profiles
• CPC Class Codes: H04L 67/535 Tracking the activity of the user network monitoring arrangements H04L43/00; recording of computer activity G06F11/34
• CPC Class Codes: H04L 9/0872 using geo-location information, e.g. location data, time, relative position or proximity to other entities
• CPC Class Codes: H04L 9/3236 using cryptographic hash functions
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/12 Detection or prevention of fraud
• CPC Class Codes: H04W 12/61 Time-dependent
• CPC Class Codes: H04W 12/63 : Location-dependent; Proximity-dependent
• CPC Class Codes: H04W 12/64 : using geofenced areas

Abstract

The disclosed method involves monitoring behavior of at least one node, associated with at least one user, in a network to generate a behavior profile for the user(s). The method further involves comparing the behavior profile for at least one user with a baseline behavior profile for the user(s). Also, the method involves determining when there is a difference between the behavior profile for at least one user and the baseline behavior profile for the user(s). Further, the method involves flagging an event associated with the difference: when the difference exceeds a baseline threshold level, does not exceed a baseline threshold level, meets at least one criterion, and/or does not meet at least one criterion. Additionally, the method involves classifying the event to an event classification. Further, the method involves transmitting the event to at least one other node in the network and/or a network operations center.

Claims

1. A method for context aware network security monitoring for threat detection, the method comprising:

monitoring, by at least one processor, behavior of at least one node, associated with at least one user, in a network to generate a behavior profile for the at least one user;

comparing, by the at least one processor, the behavior profile for the at least one user with a baseline behavior profile for the at least one user;

determining, by the at least one processor, when there is a difference between the behavior profile for the at least one user and the baseline behavior profile for the at least one user;

flagging an event associated with the difference, by the at least one processor, when the difference at least one of exceeds a baseline threshold level, does not exceed a baseline threshold level, meets at least one criterion, and does not meet at least one criterion; and

classifying the event, by the at least one processor, to an event classification.

2. The method of claim 1, wherein the method further comprises transmitting, by at least one transmitter associated with the at least one node associated with the at least one user, the event to at least one of at least one other node in the network and a network operations center.

3. The method of claim 1, wherein the method further comprises initially monitoring, by the at least one processor, the behavior of the at least one node, associated with the at least one user, in the network to generate the baseline behavior profile for the at least one user.

4. The method of claim 1, wherein the method further comprises transmitting, by at least one transmission source, the baseline behavior profile for the at least one user to the at least one node associated with the at least one user;

and

receiving, by at least one receiver associated with the at least one node associated with the at least one user, the baseline behavior profile for the at least one user.

5. The method of claim 4, wherein the at least one transmission source is employed in at least one of at least one satellite and at least one pseudo-satellite.

6. The method of claim 5, wherein the at least one satellite is at least one of a Lower Earth Orbiting (LEO) satellite, a Medium Earth Orbiting (MEO) satellite, and a Geosynchronous Earth Orbiting (GEO) satellite.

7. The method of claim 4, wherein the at least one transmission source is associated with at least one of at least one other node in the network and the network operations center.

8. The method of claim 1, wherein the at least one processor is associated with at least one of the at least one node associated with the at least one user, at least one other node in the network, and the network operations center.

9. The method of claim 1, wherein the method further comprises transmitting, by at least one transmission source, an event update to the at least one network node associated with the at least one user;

and

updating, by the at least one processor, the baseline behavior profile for the at least one user by using the event update.

10. The method of claim 9, wherein the at least one transmission source is employed in at least one of at least one satellite and at least one pseudo-satellite.

11. The method of claim 10, wherein the at least one satellite is at least one of a Lower Earth Orbiting (LEO) satellite, a Medium Earth Orbiting (MEO) satellite, and a Geosynchronous Earth Orbiting (GEO) satellite.

12. The method of claim 9, wherein the at least one transmission source is associated with at least one of at least one other node in the network and the network operations center.

13. The method of claim 1, wherein the monitoring of the behavior of the at least one node associated with the at least one user includes at least one of:

monitoring usage of the at least one node associated with the at least one user;

monitoring a location of the at least one node associated with the at least one user;

monitoring data passing through the at least one node associated with the at least one user;

monitoring a quantity of the data passing through the at least one node associated with the at least one user;

monitoring a time of the data passing through the at least one node associated with the at least one user;

monitoring a date of the data passing through the at least one node associated with the at least one user;

monitoring an origination source the data is being transmitted from originally; and

monitoring a final destination the data is being transmitted.

14. The method of claim 1, wherein the method further comprises authenticating, with at least one authenticator device, a location of the at least one node associated with the at least one user.

15. The method of claim 14, wherein the at least one authenticator device authenticates the location of the at least one node associated with the at least one user by evaluating at least one authentication signal.

16. The method of claim 15, wherein the at least one authentication signal is transmitted by at least one transmission source, and is received by at least one receiving source associated with the at least one node associated with the at least one user.

17. The method of claim 16, wherein the at least one transmission source is employed in at least one of at least one satellite and at least one pseudo-satellite.

18. The method of claim 17, wherein the at least one satellite is at least one of a Lower Earth Orbiting (LEO) satellite, a Medium Earth Orbiting (MEO) satellite, and a Geosynchronous Earth Orbiting (GEO) satellite.

19. The method of claim 1, wherein the at least one criterion is related to at least one of:

a location of the at least one network node associated with the at least one user;

a type of data passing through the at least one network node associated with the at least one user;

a time the at least one network node associated with the at least one user receives the data;

a day the at least one network node associated with the at least one user receives the data;

a time the at least one network node associated with the at least one user transmits the data;

a day the at least one network node associated with the at least one user transmits the data;

a location of an origination source the data is transmitted from originally; and

a location of a final destination source the data is being transmitted.

20. A system for context aware network security monitoring for threat detection, the system comprising:

at least one processor to monitor behavior of at least one node associated with at least one user in a network to generate a behavior profile for the at least one user;

compare the behavior profile for the at least one user with a baseline behavior profile for the at least one user;

determine when there is a difference between the behavior profile for the at least one user and the baseline behavior profile for the at least one user;

flag an event associated with the difference, when the difference at least one of exceeds a baseline threshold level, does not exceed a baseline threshold level, meets at least one criterion, and does not meet at least one criterion; and

classify the event to an event classification; and

at least one transmitter, associated with the at least one node associated with the at least one user, to transmit the event to at least one of at least one other node in the network and a network operations center.

21. The system of claim 20, wherein the processor is further to initially monitor the behavior of the at least one node associated with the at least one user in the network to generate the baseline behavior profile for the at least one user.

22. The system of claim 20, wherein the system further comprises:

at least one transmission source to transmit the baseline behavior profile for the at least one user to the at least one node associated with the at least one user; and

at least one receiver, associated with the at least one node associated with the at least one user, to receive the baseline behavior profile for the at least one user.

23. The system of claim 22, wherein the at least one transmission source is employed in at least one of at least one satellite and at least one pseudo-satellite.

24. The system of claim 23, wherein the at least one satellite is at least one of a Lower Earth Orbiting (LEO) satellite, a Medium Earth Orbiting (MEO) satellite, and a Geosynchronous Earth Orbiting (GEO) satellite.

25. The system of claim 22, wherein the at least one transmission source is associated with at least one of at least one other node in the network and the network operations center.

26. The system of claim 20, wherein the at least one processor is associated with at least one of the at least one node associated with the at least one user, at least one other node in the network, and the network operations center.

27. The system of claim 20, wherein the system further comprises at least one transmission source to transmit an event update to the at least one network node associated with the at least one user;

and

the at least one processor is to further update the baseline behavior profile for the at least one user by using the event update.

28. The system of claim 27, wherein the at least one transmission source is employed in at least one of at least one satellite and at least one pseudo-satellite.

29. The system of claim 28, wherein the at least one satellite is at least one of a Lower Earth Orbiting (LEO) satellite, a Medium Earth Orbiting (MEO) satellite, and a Geosynchronous Earth Orbiting (GEO) satellite.

30. The system of claim 27, wherein the at least one transmission source is associated with at least one of at least one other node in the network and the network operations center.

31. The system of claim 20, wherein the monitoring of the behavior of the at least one node associated with the at least one user includes at least one of:

monitoring usage of the at least one node associated with the at least one user;

monitoring a location of the at least one node associated with the at least one user;

monitoring data passing through the at least one node associated with the at least one user;

monitoring a quantity of the data passing through the at least one node associated with the at least one user;

monitoring a time of the data passing through the at least one node associated with the at least one user;

monitoring a date of the data passing through the at least one node associated with the at least one user;

monitoring an origination source the data is being transmitted from originally; and

monitoring a final destination the data is being transmitted.

32. The system of claim 20, wherein the system further comprises at least one authenticator device to authenticate a location of the at least one node associated with the at least one user.

33. The system of claim 32, wherein the at least one authenticator device authenticates the location of the at least one node, associated with the at least one user, by evaluating at least one authentication signal.

34. The system of claim 33, wherein the at least one authentication signal is transmitted by at least one transmission source, and is received by at least one receiving source associated with the at least one node associated with the at least one user.

35. The system of claim 34, wherein the at least one transmission source is employed in at least one of at least one satellite and at least one pseudo-satellite.

36. The system of claim 35, wherein the at least one satellite is at least one of a Lower Earth Orbiting (LEO) satellite, a Medium Earth Orbiting (MEO) satellite, and a Geosynchronous Earth Orbiting (GEO) satellite.

37. The system of claim 20, wherein the at least one criterion is related to at least one of:

a location of the at least one network node associated with the at least one user;

a type of data passing through the at least one network node associated with the at least one user;

a time the at least one network node associated with the at least one user receives the data;

a day the at least one network node associated with the at least one user receives the data;

a time the at least one network node associated with the at least one user transmits the data;

a day the at least one network node associated with the at least one user transmits the data;

a location of an origination source the data is transmitted from originally; and

a location of a final destination source the data is being transmitted.