IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Installation of Security Support Provider

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Installation of Security Support Provider

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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.*
logs-windows.sysmon_operational-*
endgame-*

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

Version: 107

Rule authors:

Elastic

Rule license: Elastic License v2

Setup

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Setup

If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define event.ingested and default fallback for EQL rules was not added until version 8.2. Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate event.ingested to @timestamp. For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html

Rule query

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registry where host.os.type == "windows" 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*"
   ) 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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