Access to Browser Login Data
Adversaries may acquire credentials from web browsers by reading files specific to the target browser. Web browsers commonly save credentials such as website usernames and passwords so that they do not need to be entered manually in the future. Web browsers typically store the credentials in an encrypted format within a credential store.
Detection logic
selection_cmd
ScriptBlockText|contains|all:
- Copy-Item
- -Destinationselection_path
ScriptBlockText|contains:
- \Opera Software\Opera Stable\Login Data
- \Mozilla\Firefox\Profiles
- \Microsoft\Edge\User Data\Default
- \Google\Chrome\User Data\Default\Login Data
- \Google\Chrome\User Data\Default\Login Data For AccountCondition
all of selection_*Raw YAML
title: Access to Browser Login Data
id: fc028194-969d-4122-8abe-0470d5b8f12f
related:
- id: 98f4c75c-3089-44f3-b733-b327b9cd9c9d
type: obsolete
- id: 47147b5b-9e17-4d76-b8d2-7bac24c5ce1b
type: similar
status: test
description: |
Adversaries may acquire credentials from web browsers by reading files specific to the target browser.
Web browsers commonly save credentials such as website usernames and passwords so that they do not need to be entered manually in the future.
Web browsers typically store the credentials in an encrypted format within a credential store.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1555.003/T1555.003.md
author: frack113
date: 2022-01-30
tags:
- attack.credential-access
- attack.t1555.003
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection_cmd:
ScriptBlockText|contains|all:
- Copy-Item
- '-Destination'
selection_path:
ScriptBlockText|contains:
- '\Opera Software\Opera Stable\Login Data'
- '\Mozilla\Firefox\Profiles'
- '\Microsoft\Edge\User Data\Default'
- '\Google\Chrome\User Data\Default\Login Data'
- '\Google\Chrome\User Data\Default\Login Data For Account'
condition: all of selection_*
falsepositives:
- Unknown
level: mediumFalse positives
- Unknown
References
Related rules
- obsolete98f4c75c-3089-44f3-b733-b327b9cd9c9d
- similar47147b5b-9e17-4d76-b8d2-7bac24c5ce1b
Similar rules
HackTool - WinPwn Execution - ScriptBlock
highwindows · Shares T1555
Dump Credentials from Windows Credential Manager With PowerShell
mediumwindows · Shares T1555
Enumerate Credentials from Windows Credential Manager With PowerShell
mediumwindows · Shares T1555
Access To Browser Credential Files By Uncommon Applications - Security
lowwindows · Shares T1555