Microsoft Malware Protection Center (MMPC) is now Windows Defender Security Intelligence (WDSI). Watch out for even more info about threats and protecting you and your Windows computer.
Alert level: Severe Detected with Windows Defender Antivirus
Also detected as: No associated aliases
Windows Defender detects and removes this threat.
The threat might get into your PC through spam emails or by being downloaded by other malware.
It encrypts your files and holds them for ransom; it demands that you pay to get access to your files back. It might display a message that looks like this:
It can also lower your PC's security by changing certain settings.
Read more about threats like this in our ransomware page.