Detection rules › Sigma
Loading of Kernel Module via Insmod
Detects loading of kernel modules with insmod command. Loadable Kernel Modules (LKMs) are pieces of code that can be loaded and unloaded into the kernel upon demand. Adversaries may use LKMs to obtain persistence within the system or elevate the privileges.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | T1547.006 Boot or Logon Autostart Execution: Kernel Modules and Extensions |
| Privilege Escalation | T1547.006 Boot or Logon Autostart Execution: Kernel Modules and Extensions |
Event coverage
| Provider | Event |
|---|---|
| Linux-Auditd | Event ID 1300 |
Rule body yaml
title: Loading of Kernel Module via Insmod
id: 106d7cbd-80ff-4985-b682-a7043e5acb72
status: test
description: |
Detects loading of kernel modules with insmod command.
Loadable Kernel Modules (LKMs) are pieces of code that can be loaded and unloaded into the kernel upon demand.
Adversaries may use LKMs to obtain persistence within the system or elevate the privileges.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.006/T1547.006.md
- https://linux.die.net/man/8/insmod
- https://man7.org/linux/man-pages/man8/kmod.8.html
author: 'Pawel Mazur'
date: 2021-11-02
modified: 2022-12-25
tags:
- attack.persistence
- attack.privilege-escalation
- attack.t1547.006
logsource:
product: linux
service: auditd
detection:
selection:
type: 'SYSCALL'
comm: insmod
exe: /usr/bin/kmod
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
type: 'SYSCALL'
comm: insmod
exe: /usr/bin/kmod
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.