Microsoft security software detects and removes this threat.

This trojan stops you from using your PC by showing an alert message screen. This screen can include adult content and might ask you to pay a "fine" or fee to unlock your PC.

This threat also replaces important Windows system files with copies of itself.

Due to the damage this threat can do to your PC, you might need to reinstall some files from a Windows installation disc, or a backup source.

Windows 10 protects you from ransomware. Read more:

Windows 10 Creators Update provides next-gen ransomware protection