Windows Security: Security-Enabled Global Group Deletion (Event ID 4730/634)

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1098Account Manipulation
Priv Esc
- T1098Account Manipulation
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule flags Windows Security log events indicating a security-enabled global group was deleted (Event ID 4730 and 634). Attackers may delete groups to disrupt access controls or remove persistence and auditing context tied to group memberships. The detection relies on Windows Security auditing telemetry from the event records for these specific deletion events.

Reporting behind it

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Windows Security: Security-Enabled Global Group Deletion (Event ID 4730/634)

Pivot detection · T1098 · 9 related

Changelog

v2

v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

windows-security-logs-security-enabled-global-group-deletion-event-id-4730-634-b237c54b

title: "Windows Security: Security-Enabled Global Group Deletion (Event ID 4730/634)"
id: b034151d-cb48-43c3-83eb-3b79e00d3f89
related:
  - id: 9cf01b6c-e723-4841-a868-6d7f8245ca6e
    type: obsolete
  - id: b237c54b-0f15-4612-a819-44b735e0de27
    type: derived
status: stable
description: This rule flags Windows Security log events indicating a security-enabled global group was deleted (Event ID 4730 and 634). Attackers may delete groups to disrupt access controls or remove persistence and auditing context tied to group memberships. The detection relies on Windows Security auditing telemetry from the event records for these specific deletion events.
references:
  - https://www.cisecurity.org/controls/cis-controls-list/
  - https://www.pcisecuritystandards.org/documents/PCI_DSS_v3-2-1.pdf
  - https://nvlpubs.nist.gov/nistpubs/CSWP/NIST.CSWP.04162018.pdf
  - https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventID=4730
  - https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventID=634
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/builtin/security/account_management/win_security_security_enabled_global_group_deleted.yml
author: Alexandr Yampolskyi, SOC Prime, Huntrule Team
date: 2023-04-26
tags:
  - attack.privilege-escalation
  - attack.persistence
  - attack.t1098
logsource:
  product: windows
  service: security
detection:
  selection:
    EventID:
      - 4730
      - 634
  condition: selection
falsepositives:
  - Unknown
level: low
license: DRL-1.1

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