sigmahighHunting

Change User Account Associated with the FAX Service

Detect change of the user account associated with the FAX service to avoid the escalation problem.

MITRE ATT&CK

persistencedefense-evasion

Detection Query

selection:
  TargetObject: HKLM\System\CurrentControlSet\Services\Fax\ObjectName
filter:
  Details|contains: NetworkService
condition: selection and not filter

Author

frack113

Created

2022-07-17

Data Sources

windowsRegistry Set Events

Platforms

windows

References

Tags

attack.persistenceattack.defense-evasionattack.t1112

Raw Content

title: Change User Account Associated with the FAX Service
id: e3fdf743-f05b-4051-990a-b66919be1743
status: test
description: Detect change of the user account associated with the FAX service to avoid the escalation problem.
references:
    - https://twitter.com/dottor_morte/status/1544652325570191361
    - https://raw.githubusercontent.com/RiccardoAncarani/talks/master/F-Secure/unorthodox-lateral-movement.pdf
author: frack113
date: 2022-07-17
modified: 2022-12-30
tags:
    - attack.persistence
    - attack.defense-evasion
    - attack.t1112
logsource:
    product: windows
    category: registry_set
detection:
    selection:
        TargetObject: HKLM\System\CurrentControlSet\Services\Fax\ObjectName
    filter:
        Details|contains: NetworkService
    condition: selection and not filter
falsepositives:
    - Unknown
level: high