Ammyy+exe

It is not malware, so it is not going to be found by any Anti-Virus scanner.
 * Ammyy exe **

[|Ammyy] does not require installation, therefore will not need un-installing, either, just delete the program file and it is gone.

It is just a remote control program, similar to Teamviewer and needs to be run by the local user before the remote user (the 'phone scammer) can take control.

Even then, you can see everything they do and could stop them at any time.