It's a little snippet of Python code – 6KB – that strikes fast and nasty, taking less than three hours to complete from initial breach to encryption.

Operators of an unknown ransomware gang are using a Python script to encrypt virtual machines hosted on VMware ESXi servers.

A previously undocumented Python backdoor targeting VMware ESXi servers has been spotted, enabling hackers to execute commands remotely on a compromised system.

Attackers used a script written in Python during a recent ransomware attack which took just three hours, encrypting all the virtual disks on the target's virtual machine hypervisor. Andrew ...