if this is the variant that jumps across network shares (and it almost certainly is), you can’t trust that your network is clean until you’ve gone through an agonizing amount of grunt work.
then you have to take into consideration that they don’t attack one or two email addresses that they’ve harvested, they attack as many as they can, and each infected client could theoretically be encrypting away whatever network shares they have access to.
but, step one is to be sure you’re clean. not a simple process.
“if this is the variant that jumps across network shares (and it almost certainly is)”
network file shares are like any other filesystem on Windows, and so yes, ransomware nukes those too. I’ve seen a whole business wiped out that way and they didn’t have any backups.
Fortunately, i was able to recover ALL of their data (which amounted to MANY gigabytes) using the system protection/previous versions i mentioned earlier, and which also btw, is secretly present in W8 but doesn’t actually work for any files over a few thousand bytes as larger files are corrupted in the version backups, AND has been removed altogether in W10. Thus, after W7, MS has removed THE BEST facility for the average person to recover from ransomware!