Potential Rcdll.DLL Sideloading

Detects potential DLL sideloading of rcdll.dll

Sigma rule (View on GitHub)

 1title: Potential Rcdll.DLL Sideloading
 2id: 6e78b74f-c762-4800-82ad-f66787f10c8a
 3status: test
 4description: Detects potential DLL sideloading of rcdll.dll
 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: 2023/03/15
10tags:
11    - attack.defense_evasion
12    - attack.privilege_escalation
13    - attack.t1574.001
14    - attack.t1574.002
15logsource:
16    category: image_load
17    product: windows
18detection:
19    selection:
20        ImageLoaded|endswith: '\rcdll.dll'
21    filter:
22        ImageLoaded|startswith:
23            - 'C:\Program Files (x86)\Microsoft Visual Studio\'
24            - 'C:\Program Files (x86)\Windows Kits\'
25    condition: selection and not filter
26falsepositives:
27    - Unknown
28level: high

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