IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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File Deletion via Shred

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File Deletion via Shred

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Malware or other files dropped or created on a system by an adversary may leave traces behind as to what was done within a network and how. Adversaries may remove these files over the course of an intrusion to keep their footprint low or remove them at the end as part of the post-intrusion cleanup process.

Rule type: query

Rule indices:

auditbeat-*
logs-endpoint.events.*
endgame-*

Severity: low

Risk score: 21

Runs every: 5m

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

Maximum alerts per execution: 100

References: None

Tags:

Elastic
Host
Linux
Threat Detection
Defense Evasion
Elastic Endgame

Version: 103

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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event.category:process and host.os.type:linux and event.type:(start or process_started) and process.name:shred and
  process.args:("-u" or "--remove" or "-z" or "--zero")

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Indicator Removal
- ID: T1070
- Reference URL: https://attack.mitre.org/techniques/T1070/
Sub-technique:
- Name: File Deletion
- ID: T1070.004
- Reference URL: https://attack.mitre.org/techniques/T1070/004/

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