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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Symbolic Link to Shadow Copy Created

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Symbolic Link to Shadow Copy Created

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Identifies the creation of symbolic links to a shadow copy. Symbolic Links can be used to access files in the shadow copy, including sensitive files that may contain credential information.

Rule type: eql

Rule indices:

winlogbeat-*
logs-endpoint.events.*
logs-windows.*

Severity: medium

Risk score: 47

Runs every: 5 minutes

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

Maximum alerts per execution: 100

References:

Tags:

Elastic
Host
Windows
Threat Detection
Credential Access

Version: 1

Added (Elastic Stack release): 8.0.0

Rule authors: Austin Songer

Rule license: Elastic License v2

Potential false positives

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Legitimate administrative activity related to shadow copies

Rule query

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process where event.type in ("start", "process_started") and
process.pe.original_file_name == "Cmd.Exe" and process.args :
"*mklink*" and process.args :
"*\\GLOBALROOT\\Device\\HarddiskVolumeShadowCopy*"

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
Technique:
- Name: OS Credential Dumping
- ID: T1003
- Reference URL: https://attack.mitre.org/techniques/T1003/

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