It looks like you’ve shared a snippet of , likely used in security testing or by automated vulnerability scanners.
It uses ') to try and close an existing data field so it can start running its own commands. It looks like you’ve shared a snippet of
The AND ('aRMv'='aRMv at the end is used to balance out the remaining syntax of the original query so the site doesn't crash or show a standard error. It asks the database to check if the
It asks the database to check if the number 7365 is equal to a value it generates. The CASE WHEN (7365=7365) is a "True/False" test
The CHAR functions are used to bypass simple text filters. They translate to specific letters (like q , b , v ) to create a "fingerprint" or marker in the database response.
The CASE WHEN (7365=7365) is a "True/False" test. Since it’s true, it returns CHAR(49) (the number 1). If the database processes this and returns a "1" or a success message, the person running the code knows the site is vulnerable.