Registry Export of Third-Party Credentials — Sigma Rule

Rule metadata and linked tags

Author: Swachchhanda Shrawan Poudel (Nextron Systems). Source status: experimental; severity: high. Source dates: 2025-05-22 / not supplied.

{
  "category": "process_creation",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 50d9fb64356e989f3a27ac55ae66aed8b5abae77eee58b0c6413fbdd160af409

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Registry Export of Third-Party Credentials
id: cc1abf27-78a3-4ac5-a51c-f3070b1d8e40
related:
    - id: 87a476dc-0079-4583-a985-dee7a20a03de
      type: similar
status: experimental
description: |
    Detects the use of reg.exe to export registry paths associated with third-party credentials.
    Credential stealers have been known to use this technique to extract sensitive information from the registry.
references:
    - https://www.virustotal.com/gui/file/fdc86a5b3d7df37a72c3272836f743747c47bfbc538f05af9ecf78547fa2e789/behavior
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-05-22
tags:
    - attack.credential-access
    - attack.t1552.002
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\reg.exe'
        - OriginalFileName: 'reg.exe'
    selection_cli_save:
        CommandLine|contains:
            - 'save'
            - 'export'
    selection_cli_path:
        CommandLine|contains:
            - '\Software\Aerofox\Foxmail\V3.1'
            - '\Software\Aerofox\FoxmailPreview'
            - '\Software\DownloadManager\Passwords'
            - '\Software\FTPWare\COREFTP\Sites'
            - '\Software\IncrediMail\Identities'
            - '\Software\Martin Prikryl\WinSCP 2\Sessions'
            - '\Software\Mobatek\MobaXterm'
            - '\Software\OpenSSH\Agent\Keys'
            - '\Software\OpenVPN-GUI\configs'
            - '\Software\ORL\WinVNC3\Password'
            - '\Software\Qualcomm\Eudora\CommandLine'
            - '\Software\RealVNC\WinVNC4'
            - '\Software\RimArts\B2\Settings'
            - '\Software\SimonTatham\PuTTY\Sessions'
            - '\Software\SimonTatham\PuTTY\SshHostKeys'
            - '\Software\Sota\FFFTP'
            - '\Software\TightVNC\Server'
            - '\Software\WOW6432Node\Radmin\v3.0\Server\Parameters\Radmin'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://www.virustotal.com/gui/file/fdc86a5b3d7df37a72c3272836f743747c47bfbc538f05af9ecf78547fa2e789/behavior