IP Library › Granted Patent US 11,895,156
Granted Patent B2
US 11,895,156 · App. 17/931,595 · Granted Feb 6, 2024

Securing network resources from known threats

Inventors: Supreeth Hosur Nagesh Rao (Cupertino, CA); Navindra Yadav (Cupertino, CA); Tapan Shrikrishna Patwardhan (Mountain View, CA); Umamaheswaran Arumugam (San Jose, CA); Darshan Shrinath Purandare (Fremont, CA); Aiyesha Ma (San Francisco, CA); Hongyang Zhang (Mountain View, CA); Kai Zhu (San Jose, CA)
Assignee: Cisco Technology, Inc.
H04L63/20H04L63/101H04L63/145H04L63/1416
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Quick Facts
Patent No.
US 11,895,156
App. No.
17/931,595
Filed
Sep 13, 2022
Granted
Feb 6, 2024
Kind
B2
Examiner
DO, KHANG D
Art Unit
2492
USPC
726/1
Abstract

The present disclosure relates to securing workloads of a network by identifying compromised elements in communication with the network and preventing their access to network resources. In one aspect, a method includes monitoring network traffic at network elements of a network; detecting a compromised element in communication with one or more of the network elements, the compromised element being associated with at least one network threat; and based on a defined network policy, applying one of a number of different access prevention schemes to the compromised element to prevent access to the network by the compromised element.

Claims (53)

1. A method comprising:

receiving a list of network threats;

transforming the list of network threats into a format compatible with existing exchange protocols between a server and sensors of a network;

packaging the transformed list into existing data packs exchanged between the server and the sensors;

defining policies for the threats by creating annotations to tag compromised network elements;

deploying the defined policies and the existing data packs with the transformed list of threats feeds to the sensors;

collecting continuous feedback from the sensors on various statistics collected by the sensors on performance and data traffic between their respective network elements; and

updating the policies based upon the collected statistics.

2. The method of claim 1 , further comprising:

detecting, a compromised network element in communication with one or more other network elements, the compromised network element being associated with at least one network threat.

3. The method of claim 2 , wherein the compromised network element is an endpoint registered with the network, the endpoint having accessed an external source having the at least one network threat.

4. The method of claim 2 , further comprising:

tagging the compromised network element with a tag from one of the policies.

5. The method of claim 4 , further comprising:

based on the defined policies, applying by the server through the sensors one of a number of different access prevention schemes to the compromised network element to prevent access to the network by the compromised network element.

6. The method of claim 2 , further comprising:

based on the defined policies, applying by the server through the sensors one of a number of different access prevention schemes to the compromised network element to prevent access to the network by the compromised network element.

7. A system, comprising:

a non-transitory computer readable media storing instructions; and

a processing component comprising software in combination with electronic computer hardware programmed to cooperate with the instruction to perform operations including:

receive a list of network threats;

transform the list of network threats into a format compatible with existing exchange protocols between a server and sensors of a network;

package the transformed list into existing data packs exchanged between the server and the sensors;

define policies for the threats by creating annotations to tag any compromised network elements;

deploy the defined policies and the existing data packs with the transformed list of threats feeds to the sensors;

collect continuous feedback from the sensors on various statistics collected by the sensors on performance and data traffic between their respective network elements; and

update the policies based upon the collected statistics.

8. The system of claim 7 , the operations further comprising:

detecting, a compromised network element in communication with one or more other network elements, the compromised network element being associated with at least one network threat.

9. The system of claim 8 , wherein the compromised network element is an endpoint registered with the network, the endpoint having accessed an external source having the at least one network threat.

10. The system of claim 8 , the operations further comprising:

tagging the compromised network element with a tag from one of the policies.

11. The system of claim 10 , the operations further comprising:

based on the defined policies, applying by the server through the sensors one of a number of different access prevention schemes to the compromised network element to prevent access to the network by the compromised network element.

12. The system of claim 8 , the operations further comprising:

based on the defined policies, applying by the server through the sensors one of a number of different access prevention schemes to the compromised network element to prevent access to the network by the compromised network element.

13. A non-transitory computer readable media storing instructions which when executed by a processor cause the processor to perform operations comprising:

receive a list of network threats;

transform the list of network threats into a format compatible with existing exchange protocols between a server and sensors of a network;

package the transformed list into existing data packs exchanged between the server and the sensors;

define policies for the threats by creating annotations to tag any compromised network elements;

deploy the defined policies and the existing data packs with the transformed list of threats feeds to the sensors;

collect continuous feedback from the sensors on various statistics collected by the sensors on performance and data traffic between their respective network elements; and

update the policies based upon the collected statistics.

14. The non-transitory computer readable media of claim 13 , the operations further comprising:

detecting, a compromised network element in communication with one or more other network elements, the compromised network element being associated with at least one network threat.

15. The non-transitory computer readable media of claim 14 , wherein the compromised network element is an endpoint registered with the network, the endpoint having accessed an external source having the at least one network threat.

16. The non-transitory computer readable media of claim 14 , the operations further comprising:

tagging the compromised network element with a tag from one of the policies.

17. The non-transitory computer readable media of claim 16 , the operations further comprising:

based on the defined policies, applying by the server through the sensors one of a number of different access prevention schemes to the compromised network element to prevent access to the network by the compromised network element.

18. The non-transitory computer readable media of claim 14 , the operations further comprising:

based on the defined policies, applying by the server through the sensors one of a number of different access prevention schemes to the compromised network element to prevent access to the network by the compromised network element.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 13, 2022
From: RAO, SUPREETH HOSUR NAGESH; YADAV, NAVINDRA; PATWARDHAN, TAPAN SHRIKRISHNA; ARUMUGAM, UMAMAHESWARAN; PURANDARE, DARSHAN SHRINATH; MA, AIYESHA; ZHANG, HONGYANG; ZHU, KAI
To: CISCO TECHNOLOGY, INC.
Reel/Frame 061074/0417 →
Continuity (2)
Continuation 17003364 · Aug 26, 2020
Related Publication 20230012641A1 · Jan 19, 2023