{keyword}' Union All Select Null,null,null,char(113)||char(122)||char(106)||char(112)||char(113)||char(114)||char(87)||char(120)||char(118)||char(109)||char(100)||char(76)||char(120)||char(70)||char(80)||char(78)||char(120)||char(83)||char(78)||char(104)|| Today

: These act as placeholders to ensure the attacker's "injected" query has the exact same number of columns as the original database query, which is required for the UNION command to work.

When the CHAR codes in your query are translated from ASCII, they form the following text: : These act as placeholders to ensure the

This random-looking string is used as a "canary." If an attacker sees this exact string appear on the webpage after submitting the query, they know the site is vulnerable to SQL injection and can begin stealing data. The sequence you provided decodes to a specific

: This command attempts to combine the results of the original search (for a keyword) with a new set of data defined by the attacker. : These act as placeholders to ensure the

The sequence you provided decodes to a specific string used by automated security scanners (like ) to confirm if a website is vulnerable. Decoded String