KillDisk-wiping malware known as KillDisk has been given an update. Now, the malware works on Linux as well as Windows systems and includes the ability to encrypt files, demand a bitcoin ransom and leave Linux systems unbootable. The ransom demand is the same for both Linux and Windows systems: 222 bitcoins, currently worth about $210,000. It’s not even clear if attackers would be able to provide a decryption key – at least for the Linux version – to prevent it from booting, instead displaying only a ransom message.”]
Source: https://www.healthcareinfosecurity.com/linux-killdisk-ransomware-cant-decrypt-a-9619

