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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.*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Persistence

Version: 7 (version history)

Added (Elastic Stack release): 7.11.0

Last modified (Elastic Stack release): 8.4.0

Rule authors: Elastic

Rule license: Elastic License v2

Investigation guide

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Rule query

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registry where registry.path :
("HKLM\\SYSTEM\\*ControlSet*\\Control\\Lsa\\Security Packages*",
"HKLM\\SYSTEM\\*ControlSet*\\Control\\Lsa\\OSConfig\\Security
Packages*") and not process.executable :
("C:\\Windows\\System32\\msiexec.exe",
"C:\\Windows\\SysWOW64\\msiexec.exe")

Threat mapping

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Framework: MITRE ATT&CKTM

Rule version history

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Version 7 (8.4.0 release)
  • Updated query, changed from:

    registry where registry.path :
    ("HKLM\\SYSTEM\\*ControlSet*\\Control\\Lsa\\Security Packages*",
    "HKLM\\SYSTEM\\*ControlSet*\\Control\\Lsa\\OSConfig\\Security
    Packages*") and not process.executable :
    ("C:\\Windows\\System32\\msiexec.exe",
    "C:\\Windows\\SysWOW64\\msiexec.exe")
Version 5 (8.2.0 release)
  • Formatting only
Version 4 (8.1.0 release)
  • Updated query, changed from:

    registry where registry.path :
    ("HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa\\Security Packages*",
    "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa\\OSConfig\\Security
    Packages*") and not process.executable :
    ("C:\\Windows\\System32\\msiexec.exe",
    "C:\\Windows\\SysWOW64\\msiexec.exe")
Version 3 (7.12.0 release)
  • Formatting only
Version 2 (7.11.2 release)
  • Formatting only
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