Skip to main content
Published Oct 15, 2014 | Updated Sep 15, 2017

Win32/Teerac

Severe |Detected with Windows Defender Antivirus

Aliases: No associated aliases

Summary

Windows Defender detects and removes this threat.

This ransomware family encrypts your files and shows you a webpage that asks you to pay a fee to unlock them.

They can be installed on your PC by other malware, such as TrojanDownloader:O97M/Donoff, or as a spam email attachment.

Our ransomware FAQ page has more information on this type of threat.

Read our latest comprehensive ransomware report:

Ransomware 1H 2017 review: Global outbreaks reinforce the value of security hygiene

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:

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.