I have a contact who has been analyzing the malware, he tested it multiple times with Win XP and it was hit or miss in regards to if it worked or not. From an article I read from other hackers who analyzed it, some of it was specific to Windows 7, so on other versions of Windows it had a lower probability of actually working whereas on Windows 7 it had a high probability of working. You really had to have the perfect storm of fuck ups to be compromised by this. Old version of Tor Browser, javascript enabled, on Windows and especially Windows 7, without isolation of the browser, without a VPN (although VPN would only help you somewhat), without firewall rules.