sigmamediumHunting

Potential Configuration And Service Reconnaissance Via Reg.EXE

Detects the usage of "reg.exe" in order to query reconnaissance information from the registry. Adversaries may interact with the Windows registry to gather information about credentials, the system, configuration, and installed software.

MITRE ATT&CK

T1012 T1007

discovery

Detection Query

selection_img:
  - Image|endswith: \reg.exe
  - OriginalFileName: reg.exe
selection_flag:
  CommandLine|contains: query
selection_key:
  CommandLine|contains:
    - currentVersion\windows
    - winlogon\
    - currentVersion\shellServiceObjectDelayLoad
    - currentVersion\run
    - currentVersion\policies\explorer\run
    - currentcontrolset\services
condition: all of selection_*

Author

Timur Zinniatullin, oscd.community

Created

2019-10-21

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1012/T1012.md

Tags

attack.discoveryattack.t1012attack.t1007

Raw Content

title: Potential Configuration And Service Reconnaissance Via Reg.EXE
id: 970007b7-ce32-49d0-a4a4-fbef016950bd
status: test
description: Detects the usage of "reg.exe" in order to query reconnaissance information from the registry. Adversaries may interact with the Windows registry to gather information about credentials, the system, configuration, and installed software.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1012/T1012.md
author: Timur Zinniatullin, oscd.community
date: 2019-10-21
modified: 2023-02-05
tags:
    - attack.discovery
    - attack.t1012
    - attack.t1007
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\reg.exe'
        - OriginalFileName: 'reg.exe'
    selection_flag:
        CommandLine|contains: 'query'
    selection_key:
        CommandLine|contains:
            - 'currentVersion\windows'
            - 'winlogon\'
            - 'currentVersion\shellServiceObjectDelayLoad'
            - 'currentVersion\run' # Also covers the strings "RunOnce", "RunOnceEx" and "runServicesOnce"
            - 'currentVersion\policies\explorer\run'
            - 'currentcontrolset\services'
    condition: all of selection_*
falsepositives:
    - Discord
level: medium