VMMap Unsigned Dbghelp.DLL Potential Sideloading

 1title: VMMap Unsigned Dbghelp.DLL Potential Sideloading
 2id: 273a8dd8-3742-4302-bcc7-7df5a80fe425
 3related:
 4    - id: 98ffaed4-aec2-4e04-9b07-31492fe68b3d
 5      type: similar
 6status: test
 7description: Detects potential DLL sideloading of an unsigned dbghelp.dll by the Sysinternals VMMap.
 8references:
 9    - https://techcommunity.microsoft.com/t5/sysinternals-blog/zoomit-v7-1-procdump-2-0-for-linux-process-explorer-v17-05/ba-p/3884766
10author: Nasreddine Bencherchali (Nextron Systems)
11date: 2023-07-28
12modified: 2023-09-05
13tags:
14    - attack.defense-evasion
15    - attack.persistence
16    - attack.privilege-escalation
17    - attack.t1574.001
18logsource:
19    category: image_load
20    product: windows
21detection:
22    selection:
23        ImageLoaded|contains: 'C:\Debuggers\dbghelp.dll'
24        Image|endswith:
25            - '\vmmap.exe'
26            - '\vmmap64.exe'
27    filter_main_signed:
28        Signed: 'true'
29    condition: selection and not 1 of filter_main_*
30falsepositives:
31    - Unknown
32level: high