This is an issue I've faced several times and i recall it from a couple of versions back. Right now we're using AV-USM 4.2.2. I think this is a bug.
The process alienvault-setup keeps on running even though it's been a long time since I last used it. Consuming about 20% CPU on a dual-core AWS instance. I cannot find if it is writing to a logfile so I really don't know what it's up to. If I kill the process the load average goes down and nothing else seems to be affected.
Is there a good way to check what's going on here, and see what the process is doing? -Should- it be running 24/7?