Detection rules › Sigma
All Rules Have Been Deleted From The Windows Firewall Configuration
Detects when a all the rules have been deleted from the Windows Defender Firewall configuration
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Impairment |
Telemetry coverage
Rule body
title: All Rules Have Been Deleted From The Windows Firewall Configuration
id: 79609c82-a488-426e-abcf-9f341a39365d
status: test
description: Detects when a all the rules have been deleted from the Windows Defender Firewall configuration
references:
- https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/dd364427(v=ws.10)
author: frack113, Nasreddine Bencherchali (Nextron Systems)
date: 2023-01-17
modified: 2024-01-22
tags:
- attack.defense-impairment
- attack.t1686.003
logsource:
product: windows
service: firewall-as
detection:
selection:
EventID:
- 2033 # All rules have been deleted from the Windows Defender Firewall configuration on this computer
- 2059 # All rules have been deleted from the Windows Defender Firewall configuration on this computer. (Windows 11)
filter_main_svchost:
ModifyingApplication|endswith: ':\Windows\System32\svchost.exe'
filter_optional_msmpeng:
ModifyingApplication|contains|all:
- ':\ProgramData\Microsoft\Windows Defender\Platform\'
- '\MsMpEng.exe'
condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*
level: high
Stages and Predicates
Stage 0: condition
selection and not 1 of filter_main_* and not 1 of filter_optional_*Stage 1: selection
selection:
EventID:
- 2033
- 2059
Stage 2: not filter_main_svchost
filter_main_svchost:
ModifyingApplication|endswith: ':\Windows\System32\svchost.exe'
Stage 3: not filter_optional_msmpeng
filter_optional_msmpeng:
ModifyingApplication|contains|all:
- ':\ProgramData\Microsoft\Windows Defender\Platform\'
- '\MsMpEng.exe'
Exclusions
The rule actively suppresses these predicates.
| Field | Kind | Excluded values | Search |
|---|---|---|---|
ModifyingApplication | ends_with | :\Windows\System32\svchost.exe | excludes:ModifyingApplication field:"ModifyingApplication" value:":\Windows\System32\svchost.exe" |
ModifyingApplication | match | :\ProgramData\Microsoft\Windows Defender\Platform\ | excludes:ModifyingApplication field:"ModifyingApplication" value:":\ProgramData\Microsoft\Windows Defender\Platform\" |
ModifyingApplication | match | \MsMpEng.exe | excludes:ModifyingApplication field:"ModifyingApplication" value:"\MsMpEng.exe" |