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MediumSplunk security contentTeoderick Contreras +1

Linux Auditd Unload Module Via Modprobe

The following analytic detects suspicious use of the `modprobe` command to unload kernel modules, which may indicate an attempt to disable critical system components or evade detection. The `modprobe` utility manages…

Description

The following analytic detects suspicious use of the `modprobe` command to unload kernel modules, which may indicate an attempt to disable critical system components or evade detection. The `modprobe` utility manages kernel modules, and unauthorized unloading of modules can disrupt system security features, remove logging capabilities, or conceal malicious activities. By monitoring for unusual or unauthorized `modprobe` operations involving module unloading, this analytic helps identify potential tampering with kernel functionality, enabling security teams to investigate and address possible threats to system integrity.

Detection logic

Detection requirements

Platform
LinuxmacOS

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
linux_auditd_execve

Known benign triggers

  • Administrator or network operator can use this application for automation purposes. Please update the filter macros to remove false positives.

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