Files with grt extension may be also sometimes found as files that were encrypted and renamed by a variant of HiddenTear ransomware called Karmen.

There is one other file type using
the GRT file extension!

empty icon.grt - MegaHAL greeting file

Detailed description

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GRT file - Karmen HiddenTear (variant) ransomware affected file

What is grt file? How to open grt files?

File type specification:

Ransomware encrypted file type icon Ransomware encrypted file type

File extension grt seems to be also used by a variant of HiddenTear ransomware described as Karmen.

Much like other similar ransomware, it encrypts and renames affected files and demands payment in bitcoins for the decryption key.

Help how to open:

HiddenTear decrypters may be of help here.

How to convert:

You can only convert the original data once you have decrypted .grt files.

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