Remove Immutable File Attribute - Auditd

Detects removing immutable file attribute.

Detection logic

Detection requirements

Platform: Linux macOS
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: linux
Log source service: auditd

Known benign triggers

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

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1222.002/T1222.002.md	Detection test	3

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Detection rules

Remove Immutable File Attribute - Auditd

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules