IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

« Suspicious Execution via Microsoft Office Add-Ins Windows Script Executing PowerShell »

› ›

First Time Seen Removable Device

edit

First Time Seen Removable Device

edit

Identifies newly seen removable devices by device friendly name using registry modification events. While this activity is not inherently malicious, analysts can use those events to aid monitoring for data exfiltration over those devices.

Rule type: new_terms

Rule indices:

logs-endpoint.events.*
winlogbeat-*
logs-windows.sysmon_operational-*
endgame-*

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:

Domain: Endpoint
OS: Windows
Use Case: Threat Detection
Tactic: Initial Access
Tactic: Exfiltration
Data Source: Elastic Endgame
Data Source: Elastic Defend
Data Source: Sysmon

Version: 3

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

edit

event.category:"registry" and host.os.type:"windows" and registry.value:"FriendlyName" and registry.path:*USBSTOR*

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Initial Access
- ID: TA0001
- Reference URL: https://attack.mitre.org/tactics/TA0001/
Technique:
- Name: Replication Through Removable Media
- ID: T1091
- Reference URL: https://attack.mitre.org/techniques/T1091/
Tactic:
- Name: Exfiltration
- ID: TA0010
- Reference URL: https://attack.mitre.org/tactics/TA0010/
Technique:
- Name: Exfiltration Over Physical Medium
- ID: T1052
- Reference URL: https://attack.mitre.org/techniques/T1052/
Sub-technique:
- Name: Exfiltration over USB
- ID: T1052.001
- Reference URL: https://attack.mitre.org/techniques/T1052/001/

« Suspicious Execution via Microsoft Office Add-Ins Windows Script Executing PowerShell »