IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Service DACL Modification via sc.exe
editService DACL Modification via sc.exe
editIdentifies DACL modifications to deny access to a service, making it unstoppable, or hide it from system and users.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.process-*
- logs-windows.sysmon_operational-*
- endgame-*
- logs-sentinel_one_cloud_funnel.*
- logs-m365_defender.event-*
- logs-crowdstrike.fdr*
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:
- https://blogs.jpcert.or.jp/en/2024/07/mirrorface-attack-against-japanese-organisations.html
- https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_sc_sdset_deny_service_access.yml
- https://learn.microsoft.com/en-us/windows/win32/secauthz/sid-strings
- https://www.sans.org/blog/red-team-tactics-hiding-windows-services/
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Defense Evasion
- Resources: Investigation Guide
- Data Source: Elastic Endgame
- Data Source: Elastic Defend
- Data Source: Sysmon
- Data Source: SentinelOne
- Data Source: Microsoft Defender for Endpoint
- Data Source: Crowdstrike
Version: 204
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editprocess where host.os.type == "windows" and event.type == "start" and
(process.name : "sc.exe" or ?process.pe.original_file_name : "sc.exe") and
process.args : "sdset" and process.args : "*D;*" and
process.args : ("*;IU*", "*;SU*", "*;BA*", "*;SY*", "*;WD*")
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Hide Artifacts
- ID: T1564
- Reference URL: https://attack.mitre.org/techniques/T1564/
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Create or Modify System Process
- ID: T1543
- Reference URL: https://attack.mitre.org/techniques/T1543/
-
Sub-technique:
- Name: Windows Service
- ID: T1543.003
- Reference URL: https://attack.mitre.org/techniques/T1543/003/