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MediumSigmaHQ@d4ns4n_ (Wuerth-Phoenix)

Potential Suspicious Change To Sensitive/Critical Files

Detects changes of sensitive and critical files. Monitors files that you don't expect to change without planning on Linux system. These files include, but are not limited to, system configuration files,…

Description

Detects changes of sensitive and critical files. Monitors files that you don't expect to change without planning on Linux system. These files include, but are not limited to, system configuration files, authentication files, and critical application files. Attackers often target these files to maintain persistence, escalate privileges, or disrupt system operations.

Detection logic

Detection requirements

Platform
LinuxmacOSWindows

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

Log source product
linux
Log source category
process_creation

Known benign triggers

  • Some false positives are to be expected on user or administrator machines. Apply additional filters as needed.

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