IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Attempt to Mount SMB Share via Command Line
editAttempt to Mount SMB Share via Command Line
editIdentifies the execution of macOS built-in commands to mount a Server Message Block (SMB) network share. Adversaries may use valid accounts to interact with a remote network share using SMB.
Rule type: eql
Rule indices:
- auditbeat-*
- logs-endpoint.events.*
Severity: low
Risk score: 21
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- macOS
- Threat Detection
- Lateral Movement
Version: 101
Rule authors:
- Elastic
Rule license: Elastic License v2
Investigation guide
editRule query
editprocess where event.type in ("start", "process_started") and ( process.name : "mount_smbfs" or (process.name : "open" and process.args : "smb://*") or (process.name : "mount" and process.args : "smbfs") or (process.name : "osascript" and process.command_line : "osascript*mount volume*smb://*") ) and not process.parent.executable : "/Applications/Google Drive.app/Contents/MacOS/Google Drive"
Framework: MITRE ATT&CKTM
-
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/
-
Sub-technique:
- Name: SMB/Windows Admin Shares
- ID: T1021.002
- Reference URL: https://attack.mitre.org/techniques/T1021/002/