The File Extensions Database


.REMK File Extension

  • Category: Ransomware encrypted Files

What is an .REMK file?

.REMK is STOP Ransomware variant

File extension remk is used by one of the variants of STOP ransomware that appeared during the COVID-19 crisis (March 2020) and affected several hospitals. Pretty much like any other ransomware it encrypts users files, renames the file extension and demands ransom in bitcoins.

You can find decrypters for previous versions of STOP ransomware, so it's just matter of time before decrypter for this variant is available as well.


How to open:

When dealing with encrypted files caused by some ransomware, you basically have three choices:1. restore from backup2. wait for some researcher or AV company to release decryptor for your particular ransomware version3. pay the ransomHowever, even paying the ransom does not guarantee you that you will get your files back, as lots of ransomware are just pure scams.

How to convert:

You cannot convert these files to anything else. You first have to recover / decrypt the files before you can convert them to anything else.

How to solve problems with REMK files

  • Associate the REMK file extension with the correct application. On :
    Windows: Right click on any REMK file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.REMK files". Mac: Right click (or Ctrl-click) the REMK file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .REMK is STOP Ransomware variant. Because only the current version supports the latest REMK file format. Search, therefore, e.g. on the manufacturer website after an available .REMK is STOP Ransomware variant update.
  • To make sure that your REMK file is not corrupted or virus-infected, get the file again and scan it with antivirus software.