TrailDiscover (Beta)

Enrich incoming CloudTrail events with TrailDiscover data

Overview

TrailDiscover enrichment is in open beta starting with Panther version 1.107, and is available to all customers. Please share any bug reports and feature requests with your Panther support team.

TrailDiscover is a continuously evolving repository of CloudTrail events containing detailed descriptions, MITRE ATT&CK insights, real-world incident references, research links, and information about security implications.

Learn how to view stored Enrichment Provider data here, and how to view log events with enrichment data here.

How TrailDiscover works

The TrailDiscover Enrichment Provider enriches CloudTrail events with relevant information from TrailDiscover, using the log's eventName key. If you use Amazon Security Lake, TrailDiscover enriches the api.operation field, which contains the CloudTrail event name.

Setting up TrailDiscover enrichment

Console

How to set up TrailDiscover enrichment in the Panther Console

1. In the left-hand navigation bar in your Panther Console, click Build > Packs.

2. Search for "TrailDiscover," and on the TrailDiscover Lookup Tables tile, click the Enabled toggle ON.

3. In the pop-up confirmation modal, click Continue.

4. To verify the Lookup Table is enabled, from the left sidebar menu, click Configure > Enrichment Providers.

   • On this page, you can see Panther-managed Enrichment Providers. You can also see whether the sources are currently enabled or disabled and when a source’s data was last refreshed.

CLI

How to set up TrailDiscover enrichment in the CLI workflow

• To set up TrailDiscover in the CLI workflow, follow the instructions for Enrichment Providers on Managing Lookup Tables and Enrichment Providers with the Panther Analysis Tool. Set up in the Panther Console is not currently available.

Please note the following considerations:

• CI/CD users do not need to use Detection Packs to get TrailDiscover Lookup Tables. You can pull in the latest release of panther-analysis and use the panther_analysis_tool (PAT) to upload the TrailDiscover Lookup Tables.

  • To enable the TrailDiscover Tables using the panther-analysis repo, make sure to open each corresponding YAML configuration file and set enabled: true.

• It is possible for CI/CD users to enable TrailDiscover Lookup Tables via Detection Packs, as long as you do not customize the TrailDiscover tables using PAT.

  • If you choose to manage TrailDiscover through PAT after enabling it in the Panther Console, you must first disable the Detection Packs in the Panther Console. Simultaneous use of both the Panther Console and PAT to manage TrailDiscover is not supported.

• For more information on how to manage TrailDiscover Lookup Tables, please see the TrailDiscover files in Panther's GitHub repository.

Example event enriched with TrailDiscover

Below is a CloudTrail log enriched with TrailDiscover data. The TrailDiscover object within p_enrichment contains additional information about the AssumeRole event, such as links to associated incidents, research, and MITRE ATT&CK tactics and techniques.

{
  "awsRegion": "us-east-1",
  "correlation_rule_matches": {},
  "database_name": "panther_logs",
  "eventCategory": "Management",
  "eventID": "5d0ee1aa-cac2-3876-9808-aecdc2b720ab",
  "eventName": "AssumeRole",
  "eventSource": "sts.amazonaws.com",
  "eventTime": "2024-04-24 19:23:36.000000000",
  "eventType": "AwsApiCall",
  "eventVersion": "1.08",
  "managementEvent": true,
  "p_enrichment": {
    "TrailDiscover": {
      "eventName": {
        "awsService": "STS",
        "description": "Returns a set of temporary security credentials that you can use to access AWS resources.",
        "eventName": "AssumeRole",
        "eventSource": "sts.amazonaws.com",
        "incidents": [
          {
            "description": "The curious case of [email protected]",
            "link": "https://www.invictus-ir.com/news/the-curious-case-of-dangerdev-protonmail-me"
          },
          {
            "description": "Trouble in Paradise",
            "link": "https://blog.darklab.hk/2021/07/06/trouble-in-paradise/"
          }
        ],
        "mitreAttackTactics": [
          "TA0001 - Initial Access",
          "TA0003 - Persistence",
          "TA0004 - Privilege Escalation"
        ],
        "mitreAttackTechniques": [
          "T1199 - Trusted Relationship",
          "T1078 - Valid Accounts"
        ],
        "p_match": "AssumeRole",
        "permissions": "https://aws.permissions.cloud/iam/sts#sts-AssumeRole",
        "researchLinks": [
          {
            "description": "Role Chain Juggling",
            "link": "https://hackingthe.cloud/aws/post_exploitation/role-chain-juggling/"
          },
          {
            "description": "Detecting and removing risky actions out of your IAM security policies",
            "link": "https://www.solvo.cloud/blog/detecting-and-removing-risky-actions-out-of-your-iam-security-policies/"
          }
        ],
        "securityImplications": "Attackers might use AssumeRole to gain unauthorized access to an AWS role. This might allow them to gain initial access, escalate privileges or in specific scenarios gain persistence.",
        "simulation": [
          {
            "type": "commandLine",
            "value": "aws sts assume-role --role-arn arn:aws:iam::123456789012:role/TrailDiscover --role-session-name TrailDiscover"
          }
        ],
        "usedInWild": true
      }
    }
  },
  "readOnly": true,
  "recipientAccountId": "123456789012",
  "requestID": "ddcb3c89-b762-43a1-a2b7-33f6f1afac53",
  "requestParameters": {
    "roleArn": "arn:aws:iam::123456789012:role/some-role",
    "roleSessionName": "SOME_SESSION"
  },
  "resources": [
    {
      "accountId": "123456789012",
      "arn": "arn:aws:iam::123456789012:role/some-role",
      "type": "AWS::IAM::Role"
    }
  ],
  "responseElements": {
    "assumedRoleUser": {
      "arn": "arn:aws:sts::123456789012:assumed-role/some-role/SOME_SESSION",
      "assumedRoleId": "AROASXP6SDABCDEFGL:SOME_SESSION"
    },
    "credentials": {
      "accessKeyId": "ASIASXABCDEFGRGZ",
      "expiration": "Apr 24, 2024, 8:23:36 PM",
      "sessionToken": "token"
    }
  },
  "sharedEventID": "a077320f-2184-482c-8e6d-e1e9ddfde08f",
  "sourceIPAddress": "cloudtrail.amazonaws.com",
  "table_name": "aws_cloudtrail",
  "userAgent": "cloudtrail.amazonaws.com",
  "userIdentity": {
    "invokedBy": "cloudtrail.amazonaws.com",
    "type": "AWSService"
  }
}