Remote File Download via MpCmdRunedit
Identifies the Windows Defender configuration utility (MpCmdRun.exe) being used to download a remote file.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
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
- Command and Control
Version: 5 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.13.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guideedit
Triage and analysis
Investigating Remote File Download via MpCmdRun
Verify details such as the parent process, URL reputation, and downloaded file details. Additionally, MpCmdRun logs this information in the Appdata Temp folder in MpCmdRun.log.
Rule queryedit
process where event.type == "start" and (process.name : "MpCmdRun.exe" or process.pe.original_file_name == "MpCmdRun.exe") and process.args : "-DownloadFile" and process.args : "-url" and process.args : "-path"
Threat mappingedit
Framework: MITRE ATT&CKTM
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Tactic:
- Name: Command and Control
- ID: TA0011
- Reference URL: https://attack.mitre.org/tactics/TA0011/
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Technique:
- Name: Ingress Tool Transfer
- ID: T1105
- Reference URL: https://attack.mitre.org/techniques/T1105/
Rule version historyedit
- Version 5 (7.13.0 release)
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-
Updated query, changed from:
event.category:process and event.type:(start or process_started) and (process.name:MpCmdRun.exe or process.pe.original_file_name:MpCmdRun.exe) and process.args:(("-DownloadFile" or "-downloadfile") and "-url" and "-path")
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- Version 4 (7.12.0 release)
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- Formatting only
- Version 3 (7.11.2 release)
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- Formatting only
- Version 2 (7.11.0 release)
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-
Updated query, changed from:
event.category:process and event.type:(start or process_started) and (process.name:MpCmdRun.exe or process.pe.original_file_name:MpCmdRun.exe or winlog.event_data.OriginalFileName:MpCmdRun.exe) and process.args:(("-DownloadFile" or "-downloadfile") and "-url" and "-path")
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