System and method for detecting malicious attacks in a telecommunication network
US10327137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2015 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Mar 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/72
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The solution introduces a method and system in a network node of a telecommunication network such as the MME. The method includes receiving, from an eNodeB, an attach request that originated from a UE, the attach request including an identifier associated with a subscriber of the UE; checking a UE blacklist to determine whether the identifier in the attach request is on the UE blacklist; in response to the UE identifier being on the UE blacklist: rejecting the attach request; updating a success rate metric to reflect the failed attach request; comparing the success rate metric to a threshold; and in response to a decrease in the success rate metric below the threshold, recognizing a malicious attack and taking mitigating steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.