Potential Rcdll.DLL Sideloading

calendar Apr 28, 2026 · attack.persistence attack.privilege-escalation attack.execution attack.stealth attack.t1574.001  ·
Share on: linkedin copy

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.persistence
12    - attack.privilege-escalation
13    - attack.execution
14    - attack.stealth
15    - attack.t1574.001
16logsource:
17    category: image_load
18    product: windows
19detection:
20    selection:
21        ImageLoaded|endswith: '\rcdll.dll'
22    filter:
23        ImageLoaded|startswith:
24            - 'C:\Program Files (x86)\Microsoft Visual Studio\'
25            - 'C:\Program Files (x86)\Windows Kits\'
26    condition: selection and not filter
27falsepositives:
28    - Unknown
29level: high

References

Related rules

to-top