I am watching processes via htop and see that the following is running vey often and consumes 100% of the processor utilisation for approximately 10 seconds.
This is impacting audio quality on the installed asterisk server.
What does it do?
How can I disable it?
or how can I get it to run less often?
check your logs? sounds like a system live check. webmin checks servers every 5 or 10 min which you can set. if its daily it could be a standard report. the file is a wrapper to run a SINGLE FUNCTION on behalf of other cron jobs. looks like a permissions enabler. notice it runs as root to accomplish this.
CHECK YOU LOGS. CHECK YOUR CRON JOBS.