Threats Tagged 'yurei ransomware'

Active since September 2025, Yurei is a double extortion ransomware campaign. The operators run their own Tor data leak site with a low number of victims listed at the time of writing. It is reportedly derived from Prince Ransomware, an open-source ransomware family written in Go. Check Point researchers noted that all samples were first submitted to VirusTotal from Morocco, and that one sample did not include a ticket ID, indicating that this could be a test build, possibly uploaded by the developer themselves. Yurei ransomware samples also contained a link to SatanLockv2, based on the presence of the PDB path string “D:\satanlockv2” present in the Yurei samples.

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A sophisticated ransomware family called Yurei has emerged, targeting Windows systems with advanced encryption methods. It rapidly encrypts data using ChaCha20 and ECIES, appends .Yurei to files, and disables recovery options. The malware spreads via SMB shares, removable drives, and credential-based remote execution. It employs anti-forensics techniques, including log wiping and secure deletion. Yurei features double-extortion capabilities, threatening data leaks alongside ransom demands. Analysis suggests possible code reuse from the Prince ransomware. The ransomware's professional build, stealthy propagation, and high operational speed make it a significant threat designed for irreversible data compromise.

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