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Entropy and the Second Law of Thermodynamics01:20

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The second law of thermodynamics can be stated quantitatively using the concept of entropy. Entropy is the measure of disorder of the system.
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Applications of EEG Neuroimaging Data: Event-related Potentials, Spectral Power, and Multiscale Entropy
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Effective Ransomware Detection Using Entropy Estimation of Files for Cloud Services.

Kyungroul Lee1, Jaehyuk Lee2, Sun-Young Lee3

  • 1Department of Information Security Engineering, Mokpo National University, Muan 58554, Republic of Korea.

Sensors (Basel, Switzerland)
|March 30, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a novel ransomware detection method for cloud services. It effectively identifies encrypted files using entropy estimation, preventing data loss and enabling recovery.

Keywords:
cloud serviceentropymalicious coderansomware

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Area of Science:

  • Computer Science
  • Cybersecurity
  • Data Integrity

Background:

  • Data-based services like cloud and big data are prevalent.
  • Ransomware attacks encrypt data, making recovery difficult, even with cloud backups.
  • Current cloud backups synchronize encrypted files, hindering restoration.

Purpose of the Study:

  • To propose an effective ransomware detection method for cloud services.
  • To prevent the synchronization of ransomware-infected files with cloud storage.
  • To enable the restoration of original files from cloud backups.

Main Methods:

  • File synchronization based on entropy estimation.
  • Detecting encrypted files by analyzing uniformity.
  • Experimental validation using sensitive user and system files.

Main Results:

  • 100% detection rate for ransomware-infected files across all formats.
  • Zero false positives and zero false negatives achieved.
  • Demonstrated superior effectiveness compared to existing methods.

Conclusions:

  • The proposed method effectively detects ransomware in cloud services.
  • Prevents synchronization of infected files, safeguarding cloud backups.
  • Facilitates the restoration of original data from cloud storage.