Cisco Isovalent - Potential Escape to Host

splApache-2.0from splunk/security_content

This analytic detects potential container escape or reconnaissance attempts by monitoring for the rapid execution of multiple suspicious Linux commands (nsenter, mount, ps aux, and ls) within a short time window. The search aggregates process execution logs into 5-minute buckets and identifies when two or more distinct commands occur in quick succession. This behavior is noteworthy because attackers often chain these commands together to pivot from a container into the host, enumerate processes, or browse filesystems. For a SOC, catching these clustered command executions is important because it highlights possible adversary activity attempting to break isolation and escalate privileges inside a Kubernetes environment.