IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Enumeration of Kernel Modules

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Enumeration of Kernel Modules

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Loadable Kernel Modules (or LKMs) are pieces of code that can be loaded and unloaded into the kernel upon demand. They extend the functionality of the kernel without the need to reboot the system. This identifies attempts to enumerate information about a kernel module.

Rule type: eql

Rule indices:

logs-endpoint.events.*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (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: Discovery

Version: 104

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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process where host.os.type == "linux" and event.type == "start" and
((process.name == "kmod" and process.args == "list") or (process.name == "modinfo" and process.parent.user.id != "0") or
(process.name == "depmod" and process.args in ("--all", "-a") and process.parent.user.id != "0")
or process.name == "lsmod") and not process.parent.name : ("vboxmanage", "virtualbox", "prime-offload", "vboxdrv.sh") and not
process.group_leader.name : "qualys-cloud-agent"

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
Technique:
- Name: System Information Discovery
- ID: T1082
- Reference URL: https://attack.mitre.org/techniques/T1082/

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