sigmalowHunting

Exports Registry Key To a File

Detects the export of the target Registry key to a file.

MITRE ATT&CK

exfiltrationdiscovery

Detection Query

selection_img:
  - Image|endswith: \regedit.exe
  - OriginalFileName: REGEDIT.EXE
selection_cli:
  CommandLine|contains|windash: " -E "
filter_1:
  CommandLine|contains:
    - hklm
    - hkey_local_machine
filter_2:
  CommandLine|endswith:
    - \system
    - \sam
    - \security
condition: all of selection_* and not all of filter_*

Author

Oddvar Moe, Sander Wiebing, oscd.community

Created

2020-10-07

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.exfiltrationattack.discoveryattack.t1012

Raw Content

title: Exports Registry Key To a File
id: f0e53e89-8d22-46ea-9db5-9d4796ee2f8a
related:
    - id: 82880171-b475-4201-b811-e9c826cd5eaa
      type: similar
status: test
description: Detects the export of the target Registry key to a file.
references:
    - https://lolbas-project.github.io/lolbas/Binaries/Regedit/
    - https://gist.github.com/api0cradle/cdd2d0d0ec9abb686f0e89306e277b8f
author: Oddvar Moe, Sander Wiebing, oscd.community
date: 2020-10-07
modified: 2024-03-13
tags:
    - attack.exfiltration
    - attack.discovery
    - attack.t1012
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\regedit.exe'
        - OriginalFileName: 'REGEDIT.EXE'
    selection_cli:
        CommandLine|contains|windash: ' -E '
    filter_1:   # filters to avoid intersection with critical keys rule
        CommandLine|contains:
            - 'hklm'
            - 'hkey_local_machine'
    filter_2:
        CommandLine|endswith:
            - '\system'
            - '\sam'
            - '\security'
    condition: all of selection_* and not all of filter_*
falsepositives:
    - Legitimate export of keys
level: low