Ransomware Group
Kyber
Kyber is a recently identified ransomware group using sophisticated hybrid encryption (AES-256-CTR with X25519 and Kyber1024), operating Tor-based communication channels and employing double-extortion with free partial decryption offered to build negotiation trust, discovered through underground forum monitoring in 2025.
Known victims1
Threat level
LOW
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Known infrastructure
The following Tor hidden services have been associated with this group:
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These sites are malicious. Open them only from an isolated environment.
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