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Convert indexed Sigma rules into analyst-ready detections.

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Indexed Rules

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Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

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Active Rule

Windows Update Error

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Windows Update Error

Using Splunk · Default · sigma-cli 2.0.2

Translation controls

Adjust the rule on the left, then regenerate when you want a fresh backend-native query.

BackendSplunkFormatDefaultVersion2.0.2

title: Windows Update Error
id: 13cfeb75-9e33-4d04-b0f7-ab8faaa95a59
status: stable
description: |
    Detects Windows update errors including installation failures and connection issues. Defenders should observe this in case critical update KBs aren't installed.
references:
    - https://github.com/nasbench/EVTX-ETW-Resources/blob/f1b010ce0ee1b71e3024180de1a3e67f99701fe4/ETWProvidersManifests/Windows10/1903/W10_1903_Pro_20200714_18362.959/WEPExplorer/Microsoft-Windows-WindowsUpdateClient.xml
author: frack113
date: 2021-12-04
modified: 2023-09-07
tags:
    - attack.impact
    - attack.resource-development
    - attack.t1584
logsource:
    product: windows
    service: system
detection:
    selection:
        Provider_Name: Microsoft-Windows-WindowsUpdateClient
        EventID:
            - 16 # Unable to Connect: Windows is unable to connect to the automatic updates service and therefore cannot download and install updates according to the set schedule
            - 20 # Installation Failure: Windows failed to install the following update with error
            - 24 # Uninstallation Failure: Windows failed to uninstall the following update with error
            - 213 # Revert Failure: Windows failed to revert the following update with error
            - 217 # Commit Failure: Windows failed to commit the following update with error
    condition: selection
falsepositives:
    - Unknown
level: informational

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/windows/builtin/system/microsoft_windows_windows_update_client/win_system_susp_system_update_error.yml