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Ransomware group profile · #443 by claimed victims

Entropy ransomware

Entropy is a ransomware first seen in 1st quarter of 2022, is being used in conjunction of Dridex infection. The ransomware uses a custom packer to pack itself which has been seen in some early dridex samples.

Active First seen Sep 2026
0Victims claimed on leak sites
0Victims in the last 30 days
0Victims in the last 90 days
0Countries hit
1Leak-site URLs tracked, 0 online
—Latest claim recorded

Tactics, techniques and procedures

ATT&CK technique mapping for Entropy is in progress. Victimology, infrastructure status and leak-site tracking are live above.

Indicators, detections and the full playbook

Hashes, C2 addresses, onion services, Sigma and YARA detections per technique, and the negotiation transcripts are available to signed-in analysts.

See full IOCs

Frequently asked

Is Entropy ransomware still active?
Entropy is tracked as active.
How many victims has Entropy claimed?
VULONE has recorded 0 leak-site victim claims attributed to Entropy, across 0 countries and 0 sectors.
Which industries does Entropy target?
Sector data for Entropy victims is not yet available.
Which countries are most affected by Entropy?
Country data for Entropy victims is not yet available.
Where does VULONE get Entropy victim data?
Claims are collected continuously from the group's own leak sites and cross-checked with ransomware.live and RansomLook. A claim is the group's assertion, not a confirmed breach.

VULONE research mentioning Entropy

Flotilla: Anatomy of an Undocumented Cross-Platform Covert-Browser Botnet Delivered Through the GCleaner ChannelAn undocumented Turkish-language malware platform running a covert Electron browser botnet on Windows and arm64 agents on macOS, sharing one

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Victim claims are collected from leak sites and enrichment partners (ransomware.live, RansomLook) and represent the group's own assertions, not confirmed breaches. Profile last updated 16 September 2026. Questions or corrections: [email protected].