MSSQL servers are increasingly scanned
Everyone who runs an MSSQL instance somewhere should please make sure that it is configured as securely as possible. Hints can be found at Microsoft: https://learn.microsoft.com/de-de/sql/relational-databases/security/securing-sql-server?view=sql-server-ver16
Change default passwords, restrict network access, check for updates are first steps.
More on this topic: https://www.heise.de/news/Ransomware-Cyberangriffe-auf-MSSQL-Datenbanken-9293829.html