Nasreddine Bencherchali
37 lines
1000 B
YAML
37 lines
1000 B
YAML
title: Use of Debugfs to Access a Raw Disk
|
|
id: fb0647d7-371a-4553-8e20-33bbbe122956
|
|
status: unsupported
|
|
description: Detects access to a raw disk on a host to evade detection by security products.
|
|
references:
|
|
- https://twitter.com/0xm1rch/status/1600857731073654784?s=20&t=MdrBPqv4hnBEfAJBayMCZA
|
|
- https://github.com/Neo23x0/auditd/blob/master/audit.rules # required auditd config
|
|
author: Janantha Marasinghe
|
|
date: 2022/12/20
|
|
modified: 2023/03/24
|
|
tags:
|
|
- attack.defense_evasion
|
|
- attack.t1006
|
|
logsource:
|
|
product: linux
|
|
service: auditd
|
|
detection:
|
|
selection_debugfs:
|
|
type: 'EXECVE'
|
|
a0: 'debugfs'
|
|
selection_tools:
|
|
type: 'EXECVE'
|
|
a0:
|
|
- 'df'
|
|
- 'lsblk'
|
|
- 'pvs'
|
|
- 'fdisk'
|
|
- 'blkid'
|
|
- 'parted'
|
|
- 'hwinfo'
|
|
- 'inxi'
|
|
timeframe: 5m
|
|
condition: selection_debugfs | near selection_tools # requires both
|
|
falsepositives:
|
|
- Unknown
|
|
level: medium
|