IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Unusual Executable File Creation by a System Critical Processedit
Identifies an unexpected executable file being created or modified by a Windows system critical process, which may indicate activity related to remote code execution or other forms of exploitation.
Rule type: query
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
Severity: high
Risk score: 73
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Defense Evasion
Version: 2 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.11.2
Rule authors: Elastic
Rule license: Elastic License
Rule queryedit
event.category:file and not event.type:deletion and file.extension:(exe or dll) and process.name:(smss.exe or autochk.exe or csrss.exe or wininit.exe or services.exe or lsass.exe or winlogon.exe or userinit.exe or LogonUI.exe)
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Exploitation for Defense Evasion
- ID: T1211
- Reference URL: https://attack.mitre.org/techniques/T1211/
Rule version historyedit
- Version 2 (7.11.2 release)
-
- Formatting only