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 likely a placeholder where a legitimate search term or data value would normally go.

If you are seeing this in your logs, your system is being scanned for vulnerabilities. You should take the following steps immediately: Ensure your database user account does not have

The goal of this specific "Sleep" command isn't to steal data immediately, but to . If the application takes exactly 5 seconds longer than usual to respond when this string is entered, the attacker knows the database is vulnerable to SQL injection [2]. Once confirmed, they can use similar time-based techniques to extract sensitive data one character at a time. How to Protect Your System

Use "Prepared Statements" so the database treats the input as literal text, not executable code [7]. You should take the following steps immediately: The

It looks like you've shared a snippet of code designed for an attack, specifically a time-based blind injection [1, 2]. Technical Breakdown

: 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]. How to Protect Your System Use "Prepared Statements"

: 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].