From Dual-- — {keyword};select Dbms_pipe.receive_message(chr(108)||chr(98)||chr(116)||chr(86),5)

Ensure your database user account does not have permission to execute sensitive packages like DBMS_PIPE unless absolutely necessary [8].

: This is used to terminate the original SQL statement and begin a new, unauthorized command [3]. Ensure your database user account does not have

If you are seeing this in your logs, your system is being scanned for vulnerabilities. You should take the following steps immediately: You should take the following steps immediately: Use

Use "allow-lists" to ensure only expected characters (like letters and numbers) are accepted [7]. : This is an obfuscated way of writing the string "lbtV

: This is a built-in Oracle function. In this context, it is being used to force the database to pause or "sleep" for a specific amount of time [2, 4].

: This is an obfuscated way of writing the string "lbtV." Attackers use CHR() codes to bypass simple security filters that look for specific words [5]. ,5 : This tells the database to wait for 5 seconds [2].

: DUAL is a special one-row table in Oracle used to execute functions that don't need data from a specific table [6].