I see. It's from phoenixminer.org, had no idea it wasn't actually his. From memory I downloaded mine from this thread but I no longer have the zip archives sadly, just the contents of them. I can't compare it with phoenix from NiceHash as my NiceHash only has up to 5.4c, not 5.5c.
Ok, no problem.
We're looking if anyone can provide latest phoenix that nicehash distributed in their package, so we can compare if they were even distributing a valid version or a virus.
Wish I could help. My NiceHash is a bit older and has 5.4c, the plugin refuses to update as well otherwise I'd be happy to share the 5.5c from NiceHash compared with my 5.5c. All I know is the NiceHash 5.4c and the 5.4c from this thread do match.