IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Suspicious WerFault Child Processedit
A suspicious WerFault child process was detected, which may indicate an attempt to run unnoticed. Verify process details such as command line, network connections, file writes and parent process details as well.
Rule type: query
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Defense Evasion
Version: 1
Added (Elastic Stack release): 7.10.0
Rule authors: Elastic
Rule license: Elastic License
Potential false positivesedit
Custom Windows Error Reporting Debugger
Rule queryedit
event.category:process and event.type:(start or process_started) and process.parent.name:WerFault.exe and not process.name:(cofire.exe or psr.exe or VsJITDebugger.exe or TTTracer.exe or rundll32.exe)
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Masquerading
- ID: T1036
- Reference URL: https://attack.mitre.org/techniques/T1036/