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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Volume Shadow Copy Deleted or Resized via VssAdmin

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Volume Shadow Copy Deleted or Resized via VssAdmin

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Identifies use of vssadmin.exe for shadow copy deletion or resizing on endpoints. This commonly occurs in tandem with ransomware or other destructive attacks.

Rule type: eql

Rule indices:

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

Severity: high

Risk score: 73

Runs every: 5 minutes

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

Maximum alerts per execution: 100

Tags:

Elastic
Host
Windows
Threat Detection
Impact

Version: 11 (version history)

Added (Elastic Stack release): 7.6.0

Last modified (Elastic Stack release): 8.1.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

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process where event.type in ("start", "process_started") and
(process.name : "vssadmin.exe" or process.pe.original_file_name ==
"VSSADMIN.EXE") and process.args in ("delete", "resize") and
process.args : "shadows*"

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Impact
- ID: TA0040
- Reference URL: https://attack.mitre.org/tactics/TA0040/
Technique:
- Name: Inhibit System Recovery
- ID: T1490
- Reference URL: https://attack.mitre.org/techniques/T1490/

Rule version history

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Version 11 (8.1.0 release)

Updated query, changed from:

process where event.type in ("start", "process_started") and
event.action == "start" and (process.name : "vssadmin.exe" or
process.pe.original_file_name == "VSSADMIN.EXE") and process.args in
("delete", "resize") and process.args : "shadows*"

Version 10 (7.16.0 release)

Rule name changed from: Volume Shadow Copy Deletion via VssAdmin

Updated query, changed from:

process where event.type in ("start", "process_started") and
(process.name : "vssadmin.exe" or process.pe.original_file_name ==
"VSSADMIN.EXE") and process.args : "delete" and process.args :
"shadows"

Version 9 (7.13.0 release)

Updated query, changed from:

event.category:process and event.type:(start or process_started) and
process.name:vssadmin.exe and process.args:(delete and shadows)

Version 8 (7.12.0 release)

Formatting only

Version 7 (7.11.2 release)

Formatting only

Version 6 (7.11.0 release)

Formatting only

Version 5 (7.10.0 release)

Formatting only

Version 4 (7.9.1 release)

Formatting only

Version 3 (7.9.0 release)

Updated query, changed from:

event.action:"Process Create (rule: ProcessCreate)" and
process.name:vssadmin.exe and process.args:(delete and shadows)

Version 2 (7.7.0 release)

Updated query, changed from:

event.action:"Process Create (rule: ProcessCreate)" and
process.name:"vssadmin.exe" and process.args:("delete" and "shadows")

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