[Nicihntm]

Download and run the Microsoft Malicious Software Removal Tool first. Microsoft make some attempts to keep up with these things.

Malwarebytes can be downloaded from MajorGeeks

Install and let it launch - it will ask to update - let it do so.

Unfortunately these scam artists often install some serious nasties so it may not be enough.

Post the MBAM log so we can have a look at it.

If she provided credit card or bank details - the bank should be notified immediately.