Manifestus ransomware-affected file
File type: Ransomware encrypted file, Miscellaneous file
A .fucked file is a user file encrypted and renamed by the Manifestus ransomware.
The extension identifies the ransomware's encrypted files rather than a format that can be opened normally.
File type category:
Ransomware encrypted file
Miscellaneous file
Date updated: October 14, 2026
Manifestus is ransomware known to have used the .fucked file extension in December 2016. It encrypted user files and changed their names, adding the extension to mark the affected files.
Manifestus demanded a ransom in exchange for a decryption key. The contents of a .fucked file are therefore encrypted data from the original file, not data created in a separate document format.
StupidDecryptor is the Microsoft Windows software associated with this record and was designed to decrypt files affected by Manifestus. The extension is associated with the ransomware's encrypted output, not with a separate document format.
A .fucked file cannot be opened normally while it remains encrypted. On Microsoft Windows, use StupidDecryptor to attempt to decrypt files affected by Manifestus.
After successful decryption, open the resulting file with the program that supports its original format. Keep an encrypted copy before attempting recovery.
A .fucked file cannot be meaningfully converted while it is encrypted. Decrypt it first with StupidDecryptor, then convert the recovered file with software that supports its original format.
Software apps that record to fucked files:
Microsoft Windows
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