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: new_terms

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
Data Source: Elastic Defend

Version: 205

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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event.category:process and host.os.type:linux and event.type:start and (
 (process.name:(lsmod or modinfo)) or
 (process.name:kmod and process.args:list) or
 (process.name:depmod and process.args:(--all or -a))
) and process.parent.name:(sudo or bash or dash or ash or sh or tcsh or csh or zsh or ksh or fish) and
not process.parent.user.id:0

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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