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PULSE DETAIL
ShadowByt3$ is a ransomware group that emerged in late October 2025, actively recruiting affiliates across dark web forums. While they seek to present themselves as a sophisticated ransomware operation, a detailed analysis reveals significant shortcomings in their technical execution. Their primary ransomware variant employs AES-256-GCM for file data encryption and uses RSA-2048 for key wrapping, while an alternative Windows variant utilizes the ECIES scheme with ChaCha20. Notably, their malware incorporates a polymorphic builder that generates unique hashes for every deployment, yielding low detection rates on VirusTotal-0 out of 65 for the Linux version and 4 out of 72 for Windows.
MITRE ATT&CK & Malware Families
Indicators of Compromise (1 / 8 total)
| TYPE | INDICATOR | DESCRIPTION | CREATED | |
|---|---|---|---|---|
| URL | http://mfbbt65kir2drc7tuoukwibikgvxquauscnzgbeltkmidjtgqlzm2qad.onion/leaks.php | — | 2026-04-26 |