Windows Network Access Suspicious desktop.ini Action

 1title: Windows Network Access Suspicious desktop.ini Action
 2id: 35bc7e28-ee6b-492f-ab04-da58fcf6402e
 3status: test
 4description: Detects unusual processes accessing desktop.ini remotely over network share, which can be leveraged to alter how Explorer displays a folder's content (i.e. renaming files) without changing them on disk.
 5references:
 6    - https://isc.sans.edu/forums/diary/Desktopini+as+a+postexploitation+tool/25912/
 7author: Tim Shelton (HAWK.IO)
 8date: 2021-12-06
 9modified: 2022-01-16
10tags:
11    - attack.persistence
12    - attack.t1547.009
13logsource:
14    product: windows
15    service: security
16detection:
17    selection:
18        EventID: 5145
19        ObjectType: File
20        RelativeTargetName|endswith: '\desktop.ini'
21        AccessList|contains:
22            - 'WriteData'
23            - 'DELETE'
24            - 'WriteDAC'
25            - 'AppendData'
26            - 'AddSubdirectory'
27    condition: selection
28falsepositives:
29    - Read only access list authority
30level: medium