Instead of building strings, use prepared statements. This treats input as "data" rather than "executable code."
Seeing {KEYWORD} UNION ALL SELECT in your logs is a reminder that the internet is always "knocking on the door." By using modern coding practices, you make sure that door stays locked.
If you’ve spent any time looking at server logs, you’ve probably seen it: a weird string of keywords like UNION ALL SELECT NULL . It looks like gibberish, but it’s actually an attempt to speak directly to your database behind your back. What is this string?
The snippet {KEYWORD} UNION ALL SELECT NULL,NULL,NULL-- is a classic attack pattern.
While this might seem like just a string of code, it’s actually a great jumping-off point for a blog post about and database protection . Beyond the Payload: Understanding SQL Injection and "DJGP"
: They use "NULL" to figure out exactly how many columns your database table has without triggering a data-type error.
It looks like you've provided a common SQL injection payload ( UNION ALL SELECT NULL... ) followed by the initials "DJGP."
