Detection rules › Sigma
Microsoft Defender threat exclusion added (native)
Detects scenarios where a threat exclusion is added to the antivirus in order to bypass its detection capacities
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Impairment |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Windows-Defender | Event ID 5007: Product Name Configuration has changed. |
Rule body
title: Microsoft Defender threat exclusion added (native)
description: Detects scenarios where a threat exclusion is added to the antivirus in order to bypass its detection capacities
references:
- https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-antivirus/troubleshoot-microsoft-defender-antivirus
- https://github.com/mdecrevoisier/EVTX-to-MITRE-Attack/tree/master/TA0005-Defense%20Evasion/T1562.001-Impair%20Defenses-Disable%20or%20Modify%20tool
tags:
- attack.defense_evasion
- attack.t1562.001
author: mdecrevoisier
status: experimental
logsource:
product: windows
service: windefend
detection:
selection:
EventID: 5007
New Value|startswith: 'HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\'
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
EventID: 5007
New Value|startswith: 'HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
New Value | starts_with |
| field:"New Value" kind:starts_with value:"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\" |