sigmamediumHunting

Potential CCleanerReactivator.DLL Sideloading

Detects potential DLL sideloading of "CCleanerReactivator.dll"

MITRE ATT&CK

defense-evasionpersistenceprivilege-escalation

Detection Query

selection:
  ImageLoaded|endswith: \CCleanerReactivator.dll
filter_main_path:
  Image|startswith:
    - C:\Program Files\CCleaner\
    - C:\Program Files (x86)\CCleaner\
  Image|endswith: \CCleanerReactivator.exe
condition: selection and not 1 of filter_main_*

Author

X__Junior

Created

2023-07-13

Data Sources

windowsImage Load Events

Platforms

windows

References

https://lab52.io/blog/2344-2/

Tags

attack.defense-evasionattack.persistenceattack.privilege-escalationattack.t1574.001

Raw Content

title: Potential CCleanerReactivator.DLL Sideloading
id: 3735d5ac-d770-4da0-99ff-156b180bc600
status: test
description: Detects potential DLL sideloading of "CCleanerReactivator.dll"
references:
    - https://lab52.io/blog/2344-2/
author: X__Junior
date: 2023-07-13
tags:
    - attack.defense-evasion
    - attack.persistence
    - attack.privilege-escalation
    - attack.t1574.001
logsource:
    category: image_load
    product: windows
detection:
    selection:
        ImageLoaded|endswith: '\CCleanerReactivator.dll'
    filter_main_path:
        Image|startswith:
            - 'C:\Program Files\CCleaner\'
            - 'C:\Program Files (x86)\CCleaner\'
        Image|endswith: '\CCleanerReactivator.exe'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - False positives could occur from other custom installation paths. Apply additional filters accordingly.
level: medium