Yes you can -send-sigstop to SIGSTOP the process and then do whatever you’d like on your -on-touched-exe such as attach via ptrace, dump all memory, etc. My current one will send a notification and dump the memory of the offending process.

Definitely pay attention to the warning about running this on a server. With a KVM attached in a home lab you should be able to easily recover I guess. I think you could also set yourself up a little UDP service to SIGUSR1 the daemon since incoming packets are not dropped, but I haven’t tested that.