Command and Control (TA0011)(opens in a new tab or window)
host.os.type:linux and event.category:network and event.action:(connection_attempted or connection_accepted) and
process.name:kworker* and not destination.ip:(
10.0.0.0/8 or
127.0.0.0/8 or
169.254.0.0/16 or
172.16.0.0/12 or
192.168.0.0/16 or
224.0.0.0/4 or
"::1" or
"FE80::/10" or
"FF00::/8" or
"0.0.0.0"
) and not destination.port:("2049" or "111" or "892" or "597")
Install detection rules in Elastic Security
Detect Network Activity Detected via Kworker 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).