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Detection rules › Sigma

NTFS Vulnerability Exploitation

Status
test
Severity
high
Log source
product windows, service system
Author
Florian Roth (Nextron Systems)
Source
github.com/SigmaHQ/sigma

This the exploitation of a NTFS vulnerability as reported without many details via Twitter

Known false positives

  • Unlikely

MITRE ATT&CK coverage

TacticTechniques
Impact

Telemetry coverage

ProviderRecord / event type
NtfsEvent ID 55: A corruption was discovered in the file system structure on volume DriveName.

Rule body

title: NTFS Vulnerability Exploitation
id: f14719ce-d3ab-4e25-9ce6-2899092260b0
status: test
description: This the exploitation of a NTFS vulnerability as reported without many details via Twitter
references:
    - https://twitter.com/jonasLyk/status/1347900440000811010
    - https://twitter.com/wdormann/status/1347958161609809921
    - https://www.bleepingcomputer.com/news/security/windows-10-bug-corrupts-your-hard-drive-on-seeing-this-files-icon/
author: Florian Roth (Nextron Systems)
date: 2021-01-11
modified: 2022-12-25
tags:
    - attack.impact
    - attack.t1499.001
logsource:
    product: windows
    service: system
detection:
    selection:
        Provider_Name: Ntfs
        EventID: 55
        Origin: 'File System Driver'
        Description|contains|all:
            - 'contains a corrupted file record'
            - 'The name of the file is "\"'
    condition: selection
falsepositives:
    - Unlikely
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    Provider_Name: Ntfs
    EventID: 55
    Origin: 'File System Driver'
    Description|contains|all:
        - 'contains a corrupted file record'
        - 'The name of the file is "\"'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
Descriptionmatch
  • The name of the file is "\"
  • contains a corrupted file record
field:"Description" kind:match
Origineq
  • File System Driver
field:"Origin" kind:eq value:"File System Driver"
Provider_Nameeq
  • Ntfs
field:"Provider_Name" kind:eq value:"Ntfs"