Baseline-Based Cloud Threat Detection With Noise Thresholding
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Solution Overview
Problem
Existing cybersecurity threat detection methods for cloud computing environments face challenges due to the impracticality of agent-based solutions, which require heavy resource usage and root privileges, and the incompleteness of agentless solutions, which lack real-time threat detection and runtime data, leading to undetected threats and noisy results.
Innovation Solution
A system utilizing sensors deployed on resources in a cloud computing environment to perform runtime and static analysis, generating noise metrics and thresholds to detect cybersecurity events, and initiating mitigation actions based on predefined thresholds, complemented by a sensor backend server and inspection controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If agent-based solutions are deployed for threat detection, then detection completeness is improved, but resource consumption increases
Solution Approach 1:
The patent introduces sensors as intermediary components that collect runtime data and pass it to a backend analysis system. The sensors themselves consume minimal resources, while the heavy lifting of threat detection is performed by the backend server that has access to established baselines. This mediator approach allows comprehensive detection without burdening the endpoint resources.
Solution Approach 2:
The patent extracts the computationally intensive threat detection logic from the endpoint agents and relocates it to a centralized backend system. The agents/sensors only retain the lightweight function of data collection and transmission, while the complex analysis using established baselines is performed remotely, reducing endpoint resource consumption.
2Reliability
If agent-based solutions are deployed for threat detection, then detection completeness is improved, but system complexity increases
Solution Approach 1:
The backend server acts as an intermediary that manages the complexity of threat detection logic, rule updates, and baseline establishment. Sensors on endpoints simply collect and report data, while the backend handles the complex tasks of analysis and response coordination, simplifying the endpoint deployment.
Solution Approach 2:
The centralized backend system provides universal threat detection capabilities that serve multiple endpoints simultaneously. It handles baseline management, threat analysis, and response coordination for all connected sensors, reducing the need for each endpoint to have full detection capabilities and thereby reducing overall system complexity.
3Use of energy by moving object
If agentless static analysis solutions are used, then resource consumption is reduced, but real-time detection capability is lost
Solution Approach 1:
The patent merges the advantages of both agentless and agent-based approaches by deploying lightweight sensors that collect runtime data (enabling real-time detection) while using a centralized backend for analysis (maintaining low resource consumption). This combination achieves real-time threat detection without the heavy resource usage of traditional agents.
Solution Approach 2:
The backend server serves as an intermediary that receives runtime data from sensors and performs comprehensive threat analysis using established baselines. This allows real-time detection capabilities to be achieved without requiring heavy local processing at each endpoint, thus maintaining low resource consumption while enabling real-time response.
4Measurement precision
If runtime data collection is expanded for better detection, then detection accuracy is improved, but noise level increases
Solution Approach 1:
The system changes the parameter of data processing by using established baselines to contextualize runtime events. Instead of treating all events equally, the system compares events against known normal behavior patterns, transforming raw event data into meaningful threat indicators. This parameter change enables accurate detection while filtering out noise that deviates from established baselines.
Solution Approach 2:
The system implements feedback mechanisms where detection results and noise patterns are continuously analyzed to refine baseline establishment. By feeding back detection outcomes into the baseline update process, the system learns to distinguish between legitimate runtime variations and actual threats, improving detection accuracy while reducing false positives over time.
Data Source
AI summary
A system and method for reducing false positive detection of cybersecurity events is disclosed. The method includes: configuring a plurality of resources to deploy a sensor, each sensor configured to listen on a data link layer for an event; receiving from each sensor a plurality of events, each event including an event type; generating a group of resources having a common attribute; generating a noise metric for the group of resources based on a number of events of an event type; generating a threshold based on the noise metric; configuring each sensor of a resource from the group of resources to detect a number of events exceeding the threshold; detecting a cybersecurity event in response to determining that a first resource from the group of resources has a number of events of a first type exceeding the threshold; and initiating a mitigation action based on the detected cybersecurity event.


