sigmahighHunting

Possible Privilege Escalation via Weak Service Permissions

Detection of sc.exe utility spawning by user with Medium integrity level to change service ImagePath or FailureCommand

MITRE ATT&CK

persistencedefense-evasionprivilege-escalation

Detection Query

scbynonadmin:
  Image|endswith: \sc.exe
  IntegrityLevel:
    - Medium
    - S-1-16-8192
selection_binpath:
  CommandLine|contains|all:
    - config
    - binPath
selection_failure:
  CommandLine|contains|all:
    - failure
    - command
condition: scbynonadmin and 1 of selection_*

Author

Teymur Kheirkhabarov

Created

2019-10-26

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.persistenceattack.defense-evasionattack.privilege-escalationattack.t1574.011

Raw Content

title: Possible Privilege Escalation via Weak Service Permissions
id: d937b75f-a665-4480-88a5-2f20e9f9b22a
status: test
description: Detection of sc.exe utility spawning by user with Medium integrity level to change service ImagePath or FailureCommand
references:
    - https://speakerdeck.com/heirhabarov/hunting-for-privilege-escalation-in-windows-environment
    - https://pentestlab.blog/2017/03/30/weak-service-permissions/
author: Teymur Kheirkhabarov
date: 2019-10-26
modified: 2024-12-01
tags:
    - attack.persistence
    - attack.defense-evasion
    - attack.privilege-escalation
    - attack.t1574.011
logsource:
    category: process_creation
    product: windows
detection:
    scbynonadmin:
        Image|endswith: '\sc.exe'
        IntegrityLevel:
            - 'Medium'
            - 'S-1-16-8192'
    selection_binpath:
        CommandLine|contains|all:
            - 'config'
            - 'binPath'
    selection_failure:
        CommandLine|contains|all:
            - 'failure'
            - 'command'
    condition: scbynonadmin and 1 of selection_*
falsepositives:
    - Unknown
level: high