Symbolic Link to Shadow Copy Created

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: 5m

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: 2

Rule authors:

Austin Songer

Rule license: Elastic License v2

Rule query

edit

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*"

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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