Enable detection tracking

This example shows you how to create a trigger that performs the following actions:

1. Log in to the ExtraHop system through https://<extrahop-hostname-or-IP-address>.
2. Click the System Settings icon and then click Triggers.
3. Click New.
4. Specify a name and optional description for the trigger.
5. From the Events list, select DETECTION_UPDATE.
   The DETECTION_UPDATE event runs every time that a detection is created or updated in the ExtraHop system.
6. In the right pane, specify Detection class parameters in a JavaScript object. These parameters determine the information that is sent to your ticketing system.
   The following example code adds the detection ID, description, title, categories, MITRE techniques and tactics, and risk score to a JavaScript object called payload:

   const summary = "ExtraHop Detection: " + Detection.id + ": " + Detection.title;
   const description = "ExtraHop has detected the following event on your network: " + Detection.description 
   const payload = {
       "fields": {
           "summary": summary,
           "assignee": {
               "name": "escalations_team"
           },
           "reporter": {
               "name": "ExtraHop"
           },
           "priority": {
               "id": Detection.riskScore
           },
           "labels": Detection.categories,
           "mitreCategories": Detection.mitreCategories,
           "description": description
       }
   };

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7. Next, define the HTTP request parameters in a JavaScript object below the previous JavaScript object.
   The following example code defines an HTTP request for the payload described in the previous example: defines a request with a JSON payload:

   const req = {
       'path': '/rest/api/issue',
       'headers': {
           'Content-Type': 'application/json'
       },
       'payload': JSON.stringify(payload)
   };

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   For more information about ODS request objects, see Open data stream classes.

8. Finally, specify the HTTP POST request that sends the information to the ODS target. The following example code sends the HTTP request described in the previous example to an ODS target named ticket-server:

   Remote.HTTP('ticket-server').post(req);

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const summary = "ExtraHop Detection: " + Detection.id + ": " + Detection.title;
const description = "ExtraHop has detected the following event on your network: " + Detection.description 
const payload = {
    "fields": {
        "summary": summary,
        "assignee": {
            "name": "escalations_team"
        },
        "reporter": {
            "name": "ExtraHop"
        },
        "priority": {
            "id": Detection.riskScore
        },
        "labels": Detection.categories,
        "mitreCategories": Detection.mitreCategories,
        "description": description
    }
};

const req = {
    'path': '/rest/api/issue',
    'headers': {
        'Content-Type': 'application/json'
    },
    'payload': JSON.stringify(payload)
};

Remote.HTTP('ticket-server').post(req);

After you have configured a trigger to create tickets for detections in your ticket tracking system, you can update ticket information on your ExtraHop system through the REST API.

#!/usr/bin/python3

import json
import requests
import csv

API_KEY = '123456789abcdefghijklmnop'
HOST = 'https://extrahop.example.com/'

# Method that updates detections on an ExtraHop system
def updateDetection(detection):
    url = HOST + 'api/v1/detections/' + detection['detection_id']
    del detection['detection_id']
    data = json.dumps(detection)
    headers = {'Content-Type': 'application/json',
               'Accept': 'application/json',
               'Authorization': 'ExtraHop apikey=%s' % API_KEY}
    r = requests.patch(url, data=data, headers=headers)
    print(r.status_code)
    print(r.text)

# Array of detection information
detections = [
                 {
                     "detection_id": "1",
                     "ticket_id": "TK-16982",
                     "status": "new",
                     "assignee": "sally",
                     "resolution": None,
                 },
                 {
                     "detection_id": "2",
                     "ticket_id": "TK-2078",
                     "status": None,
                     "assignee": "jim",
                     "resolution": None,
                 },
                 {
                     "detection_id": "3",
                     "ticket_id": "TK-3452",
                     "status": None,
                     "assignee": "alex",
                     "resolution": None,
                 }
             ]

for detection in detections:
    updateDetection(detection)

requests.get(url, headers=headers, verify=False)

After ticket tracking is configured, ticket details are displayed in the left pane of the detection details, similar to the following figure:

Status

The status of the ticket associated with the detection. Ticket tracking supports the following statuses:

• New
• In Progress
• Closed
• Closed with Action Taken
• Closed with No Action Taken

Ticket ID

The ID of the ticket in your work-tracking system that is associated with the detection. If you have configured a template URL, you can click the ticket ID to open the ticket in your work-tracking system.

Assignee

The username assigned to the ticket associated with the detection. Usernames in gray indicate a non-ExtraHop account.