Several security researchers have discovered a new type of malware that jumps onto the ransomware bandwagon, encrypting victims’ files and then demanding a payment of half a bitcoin for the key. Named “Locky,” the malware depends on a rather low-tech installation method to take root in a user’s system: it arrives courtesy of a malicious macro in a Word document.
Source: “Locky” crypto-ransomware rides in on malicious Word document macro