Amazon Inspector analyzes the behavior of applications that you run in AWS and helps you to identify potential security issues. Inspector works on an application-by-application basis. An Inspector Agent running on each of the EC2 instances that play host to the application monitors network, file system, and process activity. It also collects other details of communication with AWS services, use of secure channels, network traffic between instances, and so forth. This information provides Inspector with a complete picture of the application and its potential security or compliance issues.”]
Source: https://aws.amazon.com/blogs/aws/amazon-inspector-automated-security-assessment-service/