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.
Sigma rule (View on GitHub)
1title: Suspicious Where Execution
2id: 725a9768-0f5e-4cb3-aec2-bc5719c6831a
3status: test
4description: |
5 Adversaries may enumerate browser bookmarks to learn more about compromised hosts.
6 Browser bookmarks may reveal personal information about users (ex: banking sites, interests, social media, etc.) as well as details about
7 internal network resources such as servers, tools/dashboards, or other related infrastructure.
8references:
9 - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1217/T1217.md
10author: frack113, Nasreddine Bencherchali (Nextron Systems)
11date: 2021-12-13
12modified: 2022-06-29
13tags:
14 - attack.discovery
15 - attack.t1217
16logsource:
17 category: process_creation
18 product: windows
19detection:
20 where_exe:
21 - Image|endswith: '\where.exe'
22 - OriginalFileName: 'where.exe'
23 where_opt:
24 CommandLine|contains:
25 # Firefox Data
26 - 'places.sqlite'
27 - 'cookies.sqlite'
28 - 'formhistory.sqlite'
29 - 'logins.json'
30 - 'key4.db'
31 - 'key3.db'
32 - 'sessionstore.jsonlz4'
33 # Chrome Data
34 - 'History'
35 - 'Bookmarks'
36 - 'Cookies'
37 - 'Login Data'
38 condition: all of where_*
39falsepositives:
40 - Unknown
41level: low
References
Related rules
- Automated Collection Bookmarks Using Get-ChildItem PowerShell
- File And SubFolder Enumeration Via Dir Command
- AADInternals PowerShell Cmdlets Execution - ProccessCreation
- AADInternals PowerShell Cmdlets Execution - PsScript
- AD Groups Or Users Enumeration Using PowerShell - PoshModule