This indicates a connection attempt to the Oracle database. It does not indicate any exploit or attack.
The Oracle Database is a relational database management system (RDBMS) developed by the Oracle Corporation. It is widely used in large corporations and web sites.
Risk
Medium
Popularity
High
Characteristic
Loss of productivity? Have disclosed vulnerability? Can bypass firewall policy? Contain built-in function for other purposes? Can communicate in clear text or via proxy? Can support file transfer? Can be misused? Can tunnel other apps?