Adding Hidden File Attribute via Attrib

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Adversaries can add the hidden attribute to files to hide them from the user in an attempt to evade detection.

Rule indices:

Severity: low

Risk score: 21

Runs every: 5 minutes

Searches indices from: now-6m (Date Math format, see also Additional look-back time)

Maximum signals per execution: 100

Tags:

Rule version: 1

Added (Elastic Stack release): 7.6.0

event.action:"Process Create (rule: ProcessCreate)" and
process.name:"attrib.exe" and process.args:"+h"

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Hidden Files and Directories
- ID: T1158
- Reference URL: https://attack.mitre.org/techniques/T1158/
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
Technique:
- Name: Hidden Files and Directories
- ID: T1158
- Reference URL: https://attack.mitre.org/techniques/T1158/