win:security 5140
A network share object was accessed.
- Log source
- Windows Security event log
- Host type
- Windows (workstation, member server, domain controller)
- How to enable
- Advanced Audit Policy: Object Access > Audit File Share
- Audit category
- Object Access
- Audit subcategory
- Audit File Share
- Tier, host type
- Minimum
- Techniques
- 1
- Rules depending on it
- Splunk 2, Sigma 2
Why this tier
DISA STIG (workstation); Microsoft audit baseline (dc); Microsoft audit baseline (server); Microsoft audit baseline (workstation); NSA
By role
| Role | Tier | Basis |
|---|---|---|
| Windows workstation | Minimum | DISA STIG (workstation); Microsoft audit baseline (workstation); NSA |
| Windows member server | Minimum | Microsoft audit baseline (server); NSA |
| Windows domain controller | Minimum | Microsoft audit baseline (dc); Microsoft audit baseline (server); NSA |
| Windows web server (IIS), internet-facing | Minimum | Microsoft audit baseline (server); NSA |
Techniques it helps detect
Rules that depend on it
Splunk 2
Sigma 2
- Access To ADMIN$ Network Share by Florian Roth (Nextron Systems)
- Potential CVE-2023-36884 Exploitation - Share Access by Nasreddine Bencherchali (Nextron Systems)
Standards and guidance naming it
| Requirement | Relation | Basis |
|---|---|---|
| OMB M-26-14: Attack vectors and lateral movementAppendix B item 5(10) | Supports an activity | our analysis: share access |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows 11 V2R11 (2026-10-05) | Names this event | WN11-AU-000081 (workstation): Audit File Share Failure |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows 11 V2R11 (2026-10-05) | Names this event | WN11-AU-000082 (workstation): Audit File Share Success |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows 10 V3R6 (2026-01-23) | Names this event | WN10-AU-000081 (workstation): Audit File Share Failure |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows 10 V3R6 (2026-01-23) | Names this event | WN10-AU-000082 (workstation): Audit File Share Success |
| NSA: Recommended Windows events to forwardEvent Forwarding Guidance (RecommendedEvents.csv) | Names this event | Network Policy: Network share accessed |
| Microsoft: Events to monitor with potential criticalityAppendix L: Events to Monitor (Windows Server AD DS best practices) | Names this event | potential criticality Low: A network share object was accessed. |