Sysmon Application Crashed — Sigma Rule

Rule metadata and linked tags

Author: Tim Shelton. Source status: test; severity: high. Source dates: 2022-04-26 / 2024-01-17.

{
  "product": "windows",
  "service": "system"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 83993730946efb95e40d1110bb0bca14e7e59b3db2bd73c48e18f0d4888d1648

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Sysmon Application Crashed
id: 4d7f1827-1637-4def-8d8a-fd254f9454df
status: test
description: Detects application popup reporting a failure of the Sysmon service
references:
    - https://github.com/nasbench/EVTX-ETW-Resources/blob/f1b010ce0ee1b71e3024180de1a3e67f99701fe4/ETWProvidersManifests/Windows10/1803/W10_1803_Pro_19700101_17134.1/WEPExplorer/Application%20Popup.xml#L36
author: Tim Shelton
date: 2022-04-26
modified: 2024-01-17
tags:
    - attack.defense-impairment
    - attack.t1685
logsource:
    product: windows
    service: system
detection:
    selection:
        Provider_Name: 'Application Popup'
        EventID: 26
        Caption:
            - 'sysmon64.exe - Application Error'
            - 'sysmon.exe - Application Error'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/nasbench/EVTX-ETW-Resources/blob/f1b010ce0ee1b71e3024180de1a3e67f99701fe4/ETWProvidersManifests/Windows10/1803/W10_1803_Pro_19700101_17134.1/WEPExplorer/Application%20Popup.xml#L36