process where host.os.type == "macos" and event.type in ("start", "process_started") and event.action == "exec" and
process.name == "networksetup" and process.args like~ ("-setwebproxy", "-setsecurewebproxy", "-setautoproxyurl") and
(process.parent.name like~ ("osascript", "bash", "sh", "zsh", "Terminal", "Python*") or (process.parent.code_signature.exists == false or process.parent.code_signature.trusted == false))
Install detection rules in Elastic Security
Detect WebProxy Settings Modification in the Elastic Security detection engine by installing this rule into your Elastic Stack.
To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).