Creation of Kernel Moduleedit

Identifies activity related to loading kernel modules on Linux via creation of new ko files in the LKM directory.

Rule type: eql

Rule indices:

  • logs-endpoint.events.*
  • endgame-*

Severity: low

Risk score: 21

Runs every: 60m

Searches indices from: now-119m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References: None

Tags:

  • Domain: Endpoint
  • OS: Linux
  • Use Case: Threat Detection
  • Tactic: Persistence
  • Rule Type: BBR
  • Data Source: Elastic Defend
  • Data Source: Elastic Endgame

Version: 3

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule queryedit

file where host.os.type == "linux" and event.type in ("change", "creation") and file.path : "/lib/modules/*" and
file.extension == "ko" and not process.name : (
  "dpkg", "systemd", "falcon-sensor*", "dnf", "yum", "rpm", "cp"
)

Framework: MITRE ATT&CKTM