Potential Libvlc.DLL Sideloading

Detects potential DLL sideloading of "libvlc.dll", a DLL that is legitimately used by "VLC.exe"

Sigma rule (View on GitHub)

 1title: Potential Libvlc.DLL Sideloading
 2id: bf9808c4-d24f-44a2-8398-b65227d406b6
 3status: test
 4description: Detects potential DLL sideloading of "libvlc.dll", a DLL that is legitimately used by "VLC.exe"
 5references:
 6    - https://www.trendmicro.com/en_us/research/23/c/earth-preta-updated-stealthy-strategies.html
 7    - https://hijacklibs.net/entries/3rd_party/vlc/libvlc.html
 8author: X__Junior
 9date: 2023-04-17
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: '\libvlc.dll'
22    filter_main_vlc:
23        ImageLoaded|startswith:
24            - 'C:\Program Files (x86)\VideoLAN\VLC\'
25            - 'C:\Program Files\VideoLAN\VLC\'
26    condition: selection and not 1 of filter_main_*
27falsepositives:
28    - False positives are expected if VLC is installed in non-default locations
29level: medium

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