In plain English, this specific string is designed to test if a database is vulnerable by forcing it to perform a logical operation and return a specific result.
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. In plain English, this specific string is designed
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. They translate to specific letters (like q ,
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. If the database processes this and returns a