Merry X-Mas ransomware-affected file
File type: Ransomware encrypted file
A .MRCR1 file is an original user file that the Merry X-Mas ransomware encrypted and renamed.
File type category:
Ransomware encrypted file
Date updated: October 14, 2026
The MRCR1 file extension is associated with Merry X-Mas, a ransomware strain that first appeared in early January 2017.
Each MRCR1 file contains the encrypted contents of an original user file. The ransomware also creates a ransom note named YOUR_FILES_ARE_DEAD.hta.
Emsisoft Decrypter for MRCR is Microsoft Windows software designed to decrypt files affected by this ransomware. MRCR1 is a ransomware output rather than a format intended for use by ordinary applications.
MRCR1 files cannot normally be opened in the applications that created the original files. On Microsoft Windows, use Emsisoft Decrypter for MRCR to try to decrypt them.
After successful decryption, open the resulting files with applications that support their original file types.
There is no meaningful direct conversion from the MRCR1 file. First decrypt the files with Emsisoft Decrypter for MRCR.
You can convert the original files only after you have successfully decrypted the MRCR1 files. Once restored, they can be converted or exported using software that supports their original formats.
Software apps that recover MRCR1 files:
Microsoft Windows
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