All Select Null,null,null,null,'qbqvq'||'lbznmmwdachxaypteqetdoupxsqdsedwqcwkldne'||'qqbqq',null,null,null,null-- Exgp - -4640 Union

: A unique tag often used by automated tools (like sqlmap or commercial scanners) to track specific injection attempts. Security Implications

If this string was found in your server logs or application inputs, it indicates that an was performed against your system. It is a signature of a tool checking if it can "reflect" data back to itself through your database. : A unique tag often used by automated

: Scanners look for the unique middle string ( LBzNMMwda... ) surrounded by these markers in the server's response. If it appears, the vulnerability is confirmed. -- ExGP : : A unique tag often used by automated