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Ransom:Win32/Crilock.A
Aliases: No associated aliases
Summary
Windows Defender detects and removes this threat.
It encrypts your files and displays a webpage that asks you to pay a fee to unlock them.
This threat is usually installed on your PC by other malware. You can read more about ransomware on our Ransomware page.
Windows 10 protects you from ransomware. Read more:
Windows 10 Creators Update provides next-gen ransomware protection
Microsoft doesn’t recommend you pay the fine. There is no guarantee that paying the ransom will give you access to your files.
If you've already paid, see our ransomware page for help on what to do now.
Run antivirus or antimalware software
Use the following free Microsoft software to detect and remove this threat:
- Windows Defender for Windows 10 and Windows 8.1, or Microsoft Security Essentials for Windows 7 and Windows Vista
- Microsoft Safety Scanner
You should also run a full scan. A full scan might find other, hidden malware.
Advanced troubleshooting
You might be able to recover encrypted files by using the tool discussed in the MMPC blog post FireEye and Fox_IT tool can help recover Crilock-encrypted files.
To restore your PC, you might need to download and run Windows Defender Offline. See our advanced troubleshooting page for more help.
Get more help
You can also visit our advanced troubleshooting page or search the Microsoft virus and malware community for more help.
If you’re using Windows XP, see our Windows XP end of support page.
