PUA - WebBrowserPassView Execution — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: medium. Source dates: 2022-08-20 / 2023-02-14.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 0cef2336394218ca4fb96ba537ffd6ab710ebf5f8272f4613d6824fec2550029

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: PUA - WebBrowserPassView Execution
id: d0dae994-26c6-4d2d-83b5-b3c8b79ae513
status: test
description: Detects the execution of WebBrowserPassView.exe. A password recovery tool that reveals the passwords stored by the following Web browsers, Internet Explorer (Version 4.0 - 11.0), Mozilla Firefox (All Versions), Google Chrome, Safari, and Opera
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/40b77d63808dd4f4eafb83949805636735a1fd15/atomics/T1555.003/T1555.003.md
author: frack113
date: 2022-08-20
modified: 2023-02-14
tags:
    - attack.credential-access
    - attack.t1555.003
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Description: 'Web Browser Password Viewer'
        - Image|endswith: '\WebBrowserPassView.exe'
    condition: selection
falsepositives:
    - Legitimate use
level: medium

Original YAML and metadata in JSON

False positives

• Legitimate use

Source references

• https://github.com/redcanaryco/atomic-red-team/blob/40b77d63808dd4f4eafb83949805636735a1fd15/atomics/T1555.003/T1555.003.md