Detection rules › Sigma
Fsutil Drive Enumeration
Attackers may leverage fsutil to enumerated connected drives.
Known false positives
- Certain software or administrative tasks may trigger false positives.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
Rule body
title: Fsutil Drive Enumeration
id: 63de06b9-a385-40b5-8b32-73f2b9ef84b6
status: test
description: Attackers may leverage fsutil to enumerated connected drives.
references:
- Turla has used fsutil fsinfo drives to list connected drives.
- https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/discovery_peripheral_device.toml
author: Christopher Peacock '@securepeacock', SCYTHE '@scythe_io'
date: 2022-03-29
modified: 2022-07-14
tags:
- attack.discovery
- attack.t1120
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\fsutil.exe'
- OriginalFileName: 'fsutil.exe'
selection_cli:
CommandLine|contains: 'drives'
condition: all of selection_*
falsepositives:
- Certain software or administrative tasks may trigger false positives.
level: low
Stages and Predicates
Stage 0: condition
all of selection_*Stage 1: selection_img
selection_img:
- Image|endswith: '\fsutil.exe'
- OriginalFileName: 'fsutil.exe'
Stage 2: selection_cli
selection_cli:
CommandLine|contains: 'drives'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match value:"drives" |
Image | ends_with |
| field:"Image" kind:ends_with value:"\fsutil.exe" |
OriginalFileName | eq |
| field:"OriginalFileName" kind:eq value:"fsutil.exe" |