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Remote Execution via File Shares

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Remote Execution via File Shares

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Identifies the execution of a file that was created by the virtual system process. This may indicate lateral movement via network file shares.

Rule type: eql

Rule indices:

logs-endpoint.events.*
winlogbeat-*
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:

https://web.archive.org/web/20230329172636/https://blog.menasec.net/2020/08/new-trick-to-detect-lateral-movement.html

Tags:

Elastic
Host
Windows
Threat Detection
Lateral Movement

Version: 2 (version history)

Added (Elastic Stack release): 7.11.0

Last modified (Elastic Stack release): 7.12.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

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sequence with maxspan=1m [file where event.type in ("creation",
"change") and process.pid == 4 and file.extension : "exe"] by host.id,
file.path [process where event.type in ("start", "process_started")]
by host.id, process.executable

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Lateral Movement
- ID: TA0008
- Reference URL: https://attack.mitre.org/tactics/TA0008/
Technique:
- Name: Remote Services
- ID: T1021
- Reference URL: https://attack.mitre.org/techniques/T1021/

Rule version history

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Version 2 (7.12.0 release)

Formatting only

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