After infection by this Trojan, you’re completely locked out of the system.
You get this screen –– it takes over your entire desktop:
Click on “Click to activate new license”, you get this screen:
Turns out it’s coming from a website, which I’ve posted the same screens, below:
Different countries have different numbers. For example, here is the UK:
And here is France:
Incidentally, a search on the US 900 number shows the first link as passwordtwoenter com, which shares an IP with a number of other similar sites:
Apparently, this is a payment processor that’s now being used for malware, whether they know it or not.
(thanks Adam Thomas and Patrick Jordan)
Update: Pay-by-phone processor cancels account. More here.