The SIEM app is now a part of the Elastic Security solution. Click here to view SIEM documentation for previous releases.

› › ›

Adding Hidden File Attribute via Attrib

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

Rule type: query

Rule indices:

Severity: low

Risk score: 21

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

Tags:

Version: 4 (version history)

Added (Elastic Stack release): 7.6.0

Last modified (Elastic Stack release): 7.9.1

Rule authors: Elastic

Rule license: Elastic License

event.category:process and event.type:(start or process_started) 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/

Version 4 (7.9.1 release)

Version 3 (7.9.0 release)

Updated query, changed from:

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

Version 2 (7.7.0 release)

Updated query, changed from:

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