Hi,
maybe this scn-Thread will help
Forgot password of ddic and SAP * user | SCN
or
https://scn.sap.com/thread/1262802
or
SAP* password reset query in MAXDB
or have a look at this sapnotes:
Check notes:
2383 - Dokumentation: Beschreibung der "Super-User" SAP*
http://service.sap.com/sap/support/notes/2383
8852 - Logon with SAP* password 06071992 not possible
http://service.sap.com/sap/support/notes/8852
or
68048 - Deactivating the automatic SAP* user
http://service.sap.com/sap/support/notes/68048
regards
Christoph