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HackTool - NoFilter Execution

Detects execution of NoFilter, a tool for abusing the Windows Filtering Platform for privilege escalation via hardcoded policy name indicators

MITRE ATT&CK

T1134T1134.001
defense-evasionprivilege-escalation

Detection Query

selection_5447:
  EventID: 5447
  FilterName|contains: RonPolicy
selection_5449:
  EventID: 5449
  ProviderContextName|contains: RonPolicy
condition: 1 of selection_*

Author

Stamatis Chatzimangou (st0pp3r)

Created

2024-01-05

Data Sources

windowssecurity

Platforms

windows

References

Tags

attack.defense-evasionattack.privilege-escalationattack.t1134attack.t1134.001
Raw Content
title: HackTool - NoFilter Execution
id: 7b14c76a-c602-4ae6-9717-eff868153fc0
status: test
description: |
    Detects execution of NoFilter, a tool for abusing the Windows Filtering Platform for privilege escalation via hardcoded policy name indicators
references:
    - https://github.com/deepinstinct/NoFilter/blob/121d215ab130c5e8e3ad45a7e7fcd56f4de97b4d/NoFilter/Consts.cpp
    - https://github.com/deepinstinct/NoFilter
    - https://www.deepinstinct.com/blog/nofilter-abusing-windows-filtering-platform-for-privilege-escalation
    - https://x.com/_st0pp3r_/status/1742203752361128162?s=20
author: Stamatis Chatzimangou (st0pp3r)
date: 2024-01-05
tags:
    - attack.defense-evasion
    - attack.privilege-escalation
    - attack.t1134
    - attack.t1134.001
logsource:
    product: windows
    service: security
    definition: 'Requirements: Audit Filtering Platform Policy Change needs to be enabled'
detection:
    selection_5447:
        EventID: 5447
        FilterName|contains: 'RonPolicy'
    selection_5449:
        EventID: 5449
        ProviderContextName|contains: 'RonPolicy'
    condition: 1 of selection_*
falsepositives:
    - Unknown
level: high