0 End))::text||(chr(113)||chr(118)||chr(112)||chr(106)||chr(113)) As Numeric): {keyword} And 5241=cast((chr(113)||chr(112)||chr(120)||chr(98)||chr(113))||(select (case When (5241=5241) Then 1 Else

The SELECT (CASE WHEN (5241=5241) THEN 1 ELSE 0 END) is a "true or false" test. Since 5241 always equals 5241, it returns 1 .

If you are seeing this in your website logs or a search bar, it’s likely an automated bot scanning for security holes. The SELECT (CASE WHEN (5241=5241) THEN 1 ELSE

The CHR() functions translate character codes into letters to bypass simple security filters. In this case, they spell out "qpxbq" and "qvpjq". they spell out "qpxbq" and "qvpjq".