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Persistence via a Windows Installer

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Persistence via a Windows Installer

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Identifies when the Windows installer process msiexec.exe creates a new persistence entry via scheduled tasks or startup.

Rule type: eql

Rule indices:

logs-endpoint.events.registry-*
logs-endpoint.events.file-*

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 Defend

Version: 1

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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any where host.os.type == "windows" and
 (process.name : "msiexec.exe" or Effective_process.name : "msiexec.exe") and
 (
  (event.category == "file" and event.action == "creation" and
   file.path : ("?:\\Windows\\System32\\Tasks\\*",
                "?:\\programdata\\microsoft\\windows\\start menu\\programs\\startup\\*",
                "?:\\Users\\*\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\*")) or

  (event.category == "registry" and event.action == "modification" and
   registry.path : ("H*\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\*",
                    "H*\\Software\\WOW6432Node\\Microsoft\\Windows\\CurrentVersion\\Run\\*",
                    "H*\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer\\Run\\*",
                    "H*\\Software\\WOW6432Node\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer\\Run\\*"))
  )

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
Technique:
- Name: Scheduled Task/Job
- ID: T1053
- Reference URL: https://attack.mitre.org/techniques/T1053/
Sub-technique:
- Name: Scheduled Task
- ID: T1053.005
- Reference URL: https://attack.mitre.org/techniques/T1053/005/
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: System Binary Proxy Execution
- ID: T1218
- Reference URL: https://attack.mitre.org/techniques/T1218/
Sub-technique:
- Name: Msiexec
- ID: T1218.007
- Reference URL: https://attack.mitre.org/techniques/T1218/007/

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