You can create your own notificationCommunication of an important event, typically through an email message or other desktop display. In USM Appliance, notifications are typically triggered by events, policies, and correlation directives, and in USM Anywhere, they are typically triggered by notification rules or directly from alarms. rules from the Orchestration Rules page or from the AlarmsAlarms provide notification of an event or sequence of events that require attention or investigation. details page, which is the easiest way to configure the matching conditions.
To create a Notification Rule from the alarms page
- Go to Activity > Alarms.
- Search the alarms that you want to include in the notification rule and click one of them. See Searching Alarms for more information.
- Select Create Rule > Create Notification Rule.
- Enter a name for the rule.
- Select a notification method:
- Amazon SNS: This requires the setup of the Amazon Simple Notification Service (SNS) API call from the USM Anywhere server. There is no limit to the number of Amazon SNS endpoint notifications sent. However, this method requires having an Amazon Web Services (AWS) account for setup and use. The Amazon SNS allows the first 1,000 email notifications per month to fall into the free messaging tier. See Sending Notifications Through Amazon SNS for more information.
- Datadog: This requires the creation of a Datadog API key and additional steps. See Sending USM Anywhere Notifications to Datadog for more information.
- Email: This method sends the notification by email. You need to enter information for the email subject and enter a destination email address. Multiple comma-separated email addresses are possible. This method uses a built-in integration with the Amazon Simple Email Service (SES) function and is limited to a maximum of 200 emails per rolling 24-hour period. The only user-customizable information available is the email subject line.
- PagerDuty: This method is performed using an integration in the product, and the user setup is required. See Sending USM Anywhere Notifications to PagerDuty for more information.
- Slack: This method makes use of a user created Slack Webhook integration. Slack integration can also be performed using Amazon SNS. See Sending USM Anywhere Notifications to Slack for more information.
Note: The rolling 24-hour 200 email limit refers to all email accounts. For example, you can have a rule with multiple emails, which counts as a single email delivery. Alternately, if you can have several rules with several emails, each of these counts as an individual email account. Sensor disconnect emails do not count against this number because they are critical and are only sent out to users whose role is manager.
- You have already suggested property values to create a matching condition, but if you want to add new property values, click Add Condition.
- (Optional.) Click Add Group of Conditions to group your conditions.
(Optional.) Click the More link to include a multiple occurrence parameter.
These options function together to specify the number of occurrences within a time period that will produce a match for the rule. For example, you can define a rule to trigger an alarmAlarms provide notification of an event or sequence of events that require attention or investigation. for an unauthorized accessAn incident-type categorization that may be a precursor to other actions or stages of an attack. attempt when a failed SSHProgram to securely log into another computer over a network, to execute commands in a remote machine, and to move files from one machine to another through Secure Copy (SCP). loginLog in (verb): Process in which an individual gains access to a computer system after providing sufficient credentials to authenticate their unique identity. Login (noun): User credentials, typically a username and matching password. occurs three times within a five-minute window. These are the two options that you can modify:
- Occurrences: Specify the number of event occurrences that produce a match on the conditional expression to trigger the rule. You can enter the number of occurrences or use the arrow to scroll the value up or down. You need to enter a number between 1 and 100.
Length: Specify the length of the window used to identify a match for multiple occurrences. Enter the number and choose a time-unit value of seconds, minutes, or hours.
This duration identifies the amount of time that transpires from the first to last. If the number of occurrences is not met within this period, the rule is not a match.
In this example, the rule applies when the configured conditions happen five times every three hours.
- Click Save Rule.
Note: If the field is related to the name of a country, you should use the country code defined by the ISO 3166.
Note: Keep in mind that the Sources or Destinations field needs to match the universally unique identifier (UUID) of the event or alarm. You can use the Source Name or Destination Name field instead.
Important: Instead of using the equals and equals, case insensitive operators for array fields, AT&T Cybersecurity recommends the use of the in or contains operators.
Note: If you need to add a property value that maps with a property key, you need to know the mapping of the field. See Determining the Mapping of a Field for more information.
Note: See Operators in the Orchestration Rules for more information.
The notification rule has been created. You can see it from Settings > Rules. See Orchestration Rules for more information.