Potential Wazuh Security Platform DLL Sideloading

 1title: Potential Wazuh Security Platform DLL Sideloading
 2id: db77ce78-7e28-4188-9337-cf30e2b3ba9f
 3status: test
 4description: Detects potential DLL side loading of DLLs that are part of the Wazuh security platform
 5references:
 6    - https://www.trendmicro.com/en_us/research/23/c/iron-tiger-sysupdate-adds-linux-targeting.html
 7author: X__Junior (Nextron Systems)
 8date: 2023/03/13
 9modified: 2023/05/12
10tags:
11    - attack.defense_evasion
12    - attack.persistence
13    - attack.privilege_escalation
14    - attack.t1574.001
15    - attack.t1574.002
16logsource:
17    category: image_load
18    product: windows
19detection:
20    selection:
21        ImageLoaded|endswith:
22            - '\libwazuhshared.dll'
23            - '\libwinpthread-1.dll'
24    filter_main_generic:
25        ImageLoaded|startswith:
26            - 'C:\Program Files\'
27            - 'C:\Program Files (x86)\'
28    filter_optional_mingw64:
29        # Note: Many third party apps installed in "AppData" or "ProgramData" and leverage "mingw64" make use of "libwinpthread-1.dll"
30        # In production its best to make a list of these apps and replace this filter with a specific one.
31        ImageLoaded|contains:
32            - '\AppData\Local\'
33            - '\ProgramData\'
34        ImageLoaded|endswith: '\mingw64\bin\libwinpthread-1.dll'
35    condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*
36falsepositives:
37    - Many legitimate applications leverage this DLL. (Visual Studio, JetBrains, Ruby, Anaconda, GithubDesktop, etc.)
38level: medium