Is it possible to intercept the SIGKILL signal in an application?

No, the SIGKILL signal (usually number 9) cannot be caught, blocked, or handled in an application written in Go or any other language. It is a system signal that immediately terminates the process without the possibility of performing any cleanup or handling.

If you need to terminate the application properly, you should use other signals, such as SIGINT or SIGTERM, which can be caught and handled using the os/signal package in Go.