From 2-spyware.com
Gcyi files virus is a threat that can be considered a malicious program because it involves money extortion and creates issues on the machine besides directly locking the commonly used files. This is a really sophisticated threat that requires immediate attention. The file-locking virus can be based on cryptocurrency extortion features,[1] and it locks down your computer immediately after infection. The infiltration is silent and quick, so none of the symptoms get noticed.