sigmalowHunting

Suspicious Where Execution

Adversaries may enumerate browser bookmarks to learn more about compromised hosts. Browser bookmarks may reveal personal information about users (ex: banking sites, interests, social media, etc.) as well as details about internal network resources such as servers, tools/dashboards, or other related infrastructure.

MITRE ATT&CK

T1217

discovery

Detection Query

where_exe:
  - Image|endswith: \where.exe
  - OriginalFileName: where.exe
where_opt:
  CommandLine|contains:
    - places.sqlite
    - cookies.sqlite
    - formhistory.sqlite
    - logins.json
    - key4.db
    - key3.db
    - sessionstore.jsonlz4
    - History
    - Bookmarks
    - Cookies
    - Login Data
condition: all of where_*

Author

frack113, Nasreddine Bencherchali (Nextron Systems)

Created

2021-12-13

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1217/T1217.md

Tags

attack.discoveryattack.t1217

Raw Content

title: Suspicious Where Execution
id: 725a9768-0f5e-4cb3-aec2-bc5719c6831a
status: test
description: |
    Adversaries may enumerate browser bookmarks to learn more about compromised hosts.
    Browser bookmarks may reveal personal information about users (ex: banking sites, interests, social media, etc.) as well as details about
    internal network resources such as servers, tools/dashboards, or other related infrastructure.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1217/T1217.md
author: frack113, Nasreddine Bencherchali (Nextron Systems)
date: 2021-12-13
modified: 2022-06-29
tags:
    - attack.discovery
    - attack.t1217
logsource:
    category: process_creation
    product: windows
detection:
    where_exe:
        - Image|endswith: '\where.exe'
        - OriginalFileName: 'where.exe'
    where_opt:
        CommandLine|contains:
            # Firefox Data
            - 'places.sqlite'
            - 'cookies.sqlite'
            - 'formhistory.sqlite'
            - 'logins.json'
            - 'key4.db'
            - 'key3.db'
            - 'sessionstore.jsonlz4'
            # Chrome Data
            - 'History'
            - 'Bookmarks'
            - 'Cookies'
            - 'Login Data'
    condition: all of where_*
falsepositives:
    - Unknown
level: low