Installation of Security Support Provider

Identifies registry modifications related to the Windows Security Support Provider (SSP) configuration. Adversaries may abuse this to establish persistence in an environment.

Rule type: eql

Rule indices:

winlogbeat-*
logs-endpoint.events.registry-*
logs-windows.sysmon_operational-*
endgame-*
logs-m365_defender.event-*
logs-sentinel_one_cloud_funnel.*

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: None

Tags:

Domain: Endpoint
OS: Windows
Use Case: Threat Detection
Tactic: Persistence
Tactic: Defense Evasion
Data Source: Elastic Endgame
Data Source: Elastic Defend
Data Source: Sysmon
Data Source: Microsoft Defender for Endpoint
Data Source: SentinelOne

Version: 309

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

edit

registry where host.os.type == "windows" and event.type == "change" and
   registry.path : (
      "HKLM\\SYSTEM\\*ControlSet*\\Control\\Lsa\\Security Packages*",
      "HKLM\\SYSTEM\\*ControlSet*\\Control\\Lsa\\OSConfig\\Security Packages*",
      "\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Control\\Lsa\\Security Packages*",
      "\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Control\\Lsa\\OSConfig\\Security Packages*",
      "MACHINE\\SYSTEM\\*ControlSet*\\Control\\Lsa\\Security Packages*",
      "MACHINE\\SYSTEM\\*ControlSet*\\Control\\Lsa\\OSConfig\\Security Packages*"
   ) and
   not process.executable : ("C:\\Windows\\System32\\msiexec.exe", "C:\\Windows\\SysWOW64\\msiexec.exe")

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
Technique:
- Name: Boot or Logon Autostart Execution
- ID: T1547
- Reference URL: https://attack.mitre.org/techniques/T1547/
Sub-technique:
- Name: Security Support Provider
- ID: T1547.005
- Reference URL: https://attack.mitre.org/techniques/T1547/005/
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Modify Registry
- ID: T1112
- Reference URL: https://attack.mitre.org/techniques/T1112/

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