Alerts for open-source relational databases
This article lists the security alerts you might get for open-source relational databases from Microsoft Defender for Cloud and any Microsoft Defender plans you enabled. The alerts shown in your environment depend on the resources and services you're protecting, and your customized configuration.
Note
Some of the recently added alerts powered by Microsoft Defender Threat Intelligence and Microsoft Defender for Endpoint might be undocumented.
Learn how to respond to these alerts.
Note
Alerts from different sources might take different amounts of time to appear. For example, alerts that require analysis of network traffic might take longer to appear than alerts related to suspicious processes running on virtual machines.
Open-source relational databases alerts
Suspected brute force attack using a valid user
(SQL.PostgreSQL_BruteForce SQL.MariaDB_BruteForce SQL.MySQL_BruteForce)
Description: A potential brute force attack has been detected on your resource. The attacker is using the valid user (username), which has permissions to log in.
MITRE tactics: PreAttack
Severity: Medium
Suspected successful brute force attack
(SQL.PostgreSQL_BruteForce SQL.MySQL_BruteForce SQL.MariaDB_BruteForce)
Description: A successful login occurred after an apparent brute force attack on your resource.
MITRE tactics: PreAttack
Severity: High
Suspected brute force attack
(SQL.PostgreSQL_BruteForce SQL.MySQL_BruteForce SQL.MariaDB_BruteForce)
Description: A potential brute force attack has been detected on your resource.
MITRE tactics: PreAttack
Severity: Medium
Attempted logon by a potentially harmful application
(SQL.PostgreSQL_HarmfulApplication SQL.MariaDB_HarmfulApplication SQL.MySQL_HarmfulApplication)
Description: A potentially harmful application attempted to access your resource.
MITRE tactics: PreAttack
Severity: High/Medium
Login from a principal user not seen in 60 days
(SQL.PostgreSQL_PrincipalAnomaly SQL.MariaDB_PrincipalAnomaly SQL.MySQL_PrincipalAnomaly)
Description: A principal user not seen in the last 60 days has logged into your database. If this database is new or this is expected behavior caused by recent changes in the users accessing the database, Defender for Cloud will identify significant changes to the access patterns and attempt to prevent future false positives.
MITRE tactics: Exploitation
Severity: Low
Login from a domain not seen in 60 days
(SQL.MariaDB_DomainAnomaly SQL.PostgreSQL_DomainAnomaly SQL.MySQL_DomainAnomaly)
Description: A user has logged in to your resource from a domain no other users have connected from in the last 60 days. If this resource is new or this is expected behavior caused by recent changes in the users accessing the resource, Defender for Cloud will identify significant changes to the access patterns and attempt to prevent future false positives.
MITRE tactics: Exploitation
Severity: Medium
Log on from an unusual Azure Data Center
(SQL.PostgreSQL_DataCenterAnomaly SQL.MariaDB_DataCenterAnomaly SQL.MySQL_DataCenterAnomaly)
Description: Someone logged on to your resource from an unusual Azure Data Center.
MITRE tactics: Probing
Severity: Low
Logon from an unusual cloud provider
(SQL.PostgreSQL_CloudProviderAnomaly SQL.MariaDB_CloudProviderAnomaly SQL.MySQL_CloudProviderAnomaly)
Description: Someone logged on to your resource from a cloud provider not seen in the last 60 days. It's quick and easy for threat actors to obtain disposable compute power for use in their campaigns. If this is expected behavior caused by the recent adoption of a new cloud provider, Defender for Cloud will learn over time and attempt to prevent future false positives.
MITRE tactics: Exploitation
Severity: Medium
Log on from an unusual location
(SQL.MariaDB_GeoAnomaly SQL.PostgreSQL_GeoAnomaly SQL.MySQL_GeoAnomaly)
Description: Someone logged on to your resource from an unusual Azure Data Center.
MITRE tactics: Exploitation
Severity: Medium
Login from a suspicious IP
(SQL.PostgreSQL_SuspiciousIpAnomaly SQL.MariaDB_SuspiciousIpAnomaly SQL.MySQL_SuspiciousIpAnomaly)
Description: Your resource has been accessed successfully from an IP address that Microsoft Threat Intelligence has associated with suspicious activity.
MITRE tactics: PreAttack
Severity: Medium
Note
For alerts that are in preview: The Azure Preview Supplemental Terms include additional legal terms that apply to Azure features that are in beta, preview, or otherwise not yet released into general availability.
Next steps
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