Potential CCleanerDU.DLL Sideloading

calendar May 15, 2025 · attack.defense-evasion attack.persistence attack.privilege-escalation attack.t1574.001  ·
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Detects potential DLL sideloading of "CCleanerDU.dll"

Sigma rule (View on GitHub)

 1title: Potential CCleanerDU.DLL Sideloading
 2id: 1fbc0671-5596-4e17-8682-f020a0b995dc
 3status: test
 4description: Detects potential DLL sideloading of "CCleanerDU.dll"
 5references:
 6    - https://lab52.io/blog/2344-2/
 7author: X__Junior (Nextron Systems)
 8date: 2023-07-13
 9tags:
10    - attack.defense-evasion
11    - attack.persistence
12    - attack.privilege-escalation
13    - attack.t1574.001
14logsource:
15    category: image_load
16    product: windows
17detection:
18    selection:
19        ImageLoaded|endswith: '\CCleanerDU.dll'
20    filter_main_path:
21        Image|startswith:
22            - 'C:\Program Files\CCleaner\'
23            - 'C:\Program Files (x86)\CCleaner\'
24        Image|endswith:
25            - '\CCleaner.exe'
26            - '\CCleaner64.exe'
27    condition: selection and not 1 of filter_main_*
28falsepositives:
29    - False positives could occur from other custom installation paths. Apply additional filters accordingly.
30level: medium

References

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