{keyword}' Union All Select Null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null From Msysaccessobjects-- Grlt -

: A comment indicator that tells the database to ignore the rest of the original query, preventing syntax errors from trailing code.

: Likely a unique identifier or "signature" used by automated vulnerability scanners (such as Burp Suite or sqlmap ) to track and identify successful injections in the server's response. Why This is Used Security professionals and attackers use these strings to: : A comment indicator that tells the database

: Targets a standard internal system table unique to Microsoft Access to confirm the database type. : A comment indicator that tells the database

: Closes the original string literal in the application's query to allow the attacker to append their own SQL commands. : A comment indicator that tells the database