{keyword}' - And (select Chr(100)||chr(85)||chr(102)||chr(83) From Sysibm.sysdummy1)=chr(100)||chr(85)||chr(102)||chr(83) And 'ikjv'='ikjv

If it works, the attacker will replace the "True" statement with a query that asks for sensitive data, such as: "Is the first letter of the admin password 'A'?"

The 'KEYWORD' starts by closing a legitimate search or input field with a single quote. This allows the attacker to append their own logic.

If the page loads, the answer is "Yes." If it fails, the answer is "No." By repeating this, they can extract entire databases character by character. How to Prevent This If it works, the attacker will replace the

If you are a developer, seeing this in your logs means someone is scanning your site for holes. You can stop these attacks by using (Prepared Statements). This ensures the database treats input as "just text" rather than executable code, rendering the single quotes and CHR commands harmless.

This is a final "always true" statement used to ensure the rest of the original, legitimate SQL query doesn't break the injection. What is the Goal? How to Prevent This If you are a

The payload uses AND statements. For the database to return a result, the conditions following the AND must be true.

CHR(100)||CHR(85)||CHR(102)||CHR(83) translates to the string "dUfS" .The code asks the database: "Does dUfS equal dUfS?" Since this is always true, the database will process the request without an error. This is a final "always true" statement used

If the website loads normally, the attacker knows the database processed the "True" statement ( dUfS = dUfS ) successfully.