AlertResponder - Automatic Security Alert Response Framework By AWS Serverless Application Model

1. Inspector investigates entities that are appeaered in the alert including IP address, Domain name and store a result: reputation, history of malicious activities, associated cloud instance and etc. Following components are already provided to integrate with your AlertResponder environment. Also you can create own inspector to check logs that is stored into original log storage or log search system.
   • VirusTotalInspector
2. Reviewer receives the alert with result(s) of Inspector and evaluate severity of the alert. Reviewer should be written by each security operator/administrator of your organization because security policies are differ from organazation to organization.
3. Emitter finally receives the alert with result of Reviewer's severity evaluation. After that, Emitter sends external integrated system. E.g. PagerDuty, Slack, Github Enterprise, etc. Also automatic quarantine can be configured by AWS Lambda function.
   • GheReporter

• Pull based correlation analysis
• Alert aggregation
• Pluggable Inspectors and Emitters

• $REGION: Replace it with your AWS region. (e.g. ap-northeast-1)
• $STACK_NAME: Replace it with CloudFormation stack name

$ curl -o alert_responder.yml https://s3-$REGION.amazonaws.com/cfn-assets.$REGION/AlertResponder/templates/latest.yml
$ aws cloudformation deploy --template-file alert_responder.yml --stack-name $STACK_NAME --capabilities CAPABILITY_IAM

• awscli >= 1.16.20
• Go >= 1.11
• GNU automake >= 1.16.1

$ cat config.json
{
  "StackName": "your-alert-responder-name",
  "TestStackName": "your-test-stack-name",
  "CodeS3Bucket": "your-some-bucket",
  "CodeS3Prefix": "for-example-functions",

  "InspectionDelay": "1",
  "ReviewDelay": "10"
}
$ env AR_CONFIG=config.json make deploy

$ cd tester/
$ make AR_CONFIG=../config.json deploy

$ cat params.json
{
  "AccountId": "214219211678",
  "Region": "ap-northeast-1",
  "Inspector": "slam-alert-responder-test-functions-Inspector-1OBGU89CT1P4B",
  "Reporter": "slam-alert-responder-test-functions-Reporter-1NDHU0VDI8OPA"
}

$ go test -v
=== RUN   TestInvokeBySns
--- PASS: TestInvokeBySns (3.39s)
           (snip)
PASS
ok      github.com/m-mizutani/AlertResponder    20.110s