Possible VSSAudit Security Event Source Registration (via security)
This rule detects the registration of the security event source VSSAudit. It would usually trigger when volume shadow copy operations happen.
SigmainformationalWindowsv1
sigma
possible-vssaudit-security-event-source-registration-via-security
title: Possible VSSAudit Security Event Source Registration (via security)
id: a4a49042-a5ac-53ad-96b8-be0c087beeac
status: stable
description: This rule detects the registration of the security event source VSSAudit. It would usually trigger when volume shadow copy operations happen.
references:
- https://attack.mitre.org/techniques/T1003/002/
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1003.002/T1003.002.md#atomic-test-3---esentutlexe-sam-copy
author: Huntrule Team
date: 2026-05-25
tags:
- attack.credential-access
- attack.t1003.002
logsource:
product: windows
service: security
detection:
selection:
AuditSourceName: VSSAudit
EventID:
- 4904
- 4905
condition: selection
falsepositives:
- Unknown
level: informational
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.