HackTool - EDRSilencer Execution - Filter Added
Detects execution of EDRSilencer, a tool that abuses the Windows Filtering Platform (WFP) to block the outbound traffic of running EDR agents based on specific hardcoded filter names.
Detection logic
selection
EventID:
- 5441
- 5447
FilterName|contains: Custom Outbound FilterCondition
selectionRaw YAML
title: HackTool - EDRSilencer Execution - Filter Added
id: 98054878-5eab-434c-85d4-72d4e5a3361b
status: test
description: |
Detects execution of EDRSilencer, a tool that abuses the Windows Filtering Platform (WFP) to block the outbound traffic of running EDR agents based on specific hardcoded filter names.
references:
- https://github.com/netero1010/EDRSilencer
author: Thodoris Polyzos (@SmoothDeploy)
date: 2024-01-29
modified: 2024-01-30
tags:
- attack.defense-impairment
- attack.t1685
logsource:
product: windows
service: security
definition: 'Requirements: Audit Filtering Platform Policy Change needs to be enabled'
detection:
selection:
EventID:
- 5441
- 5447
FilterName|contains: 'Custom Outbound Filter'
condition: selection
falsepositives:
- Unknown
level: highFalse positives
- Unknown