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MediumSigmaHQNasreddine Bencherchali (Nextron Systems)

Remove Immutable File Attribute

Detects usage of the 'chattr' utility to remove immutable file attribute.

Detection logic

Detection requirements

Platform
LinuxmacOS

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

  • Administrator interacting with immutable files (e.g. for instance backups).

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