OphionLocker Ransomware: Bitcoin Demands via Elliptic Encryption

Cybercrooks have brewed a strain of ransomware that uses elliptic curve cryptography for file encryption, and Tor for communication. The malware, dubbed OphionLocker, is spreading using a malicious advertising (malvertising) campaign featuring the RIG exploit kit. The ransomware encrypts files of particular types on infected systems before using Tor2web URL as a conduit for instructions on how to send the payment and obtain the decryptor tool. The extortionists are asking for a payoff of 1 BTC ($352 at current rates of exchange).

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