Crypt.rar -

"Crypt" is a frequent naming convention for ransomware variants. If you have found a file with this name or your files have been renamed with a .crypt or .rar extension, your system may be infected.

: Tools like Advanced Archive Password Recovery from Elcomsoft are designed specifically for this purpose. crypt.rar

There are legitimate utilities and libraries used to "crypt" (encrypt) RAR files: "Crypt" is a frequent naming convention for ransomware

Are you trying to for a RAR file, or are you concerned your computer has been infected with ransomware ? To crypt, or to mine – that is the question - Securelist crypt.rar

: Recent variants of this ransomware append extensions like .rar to victims' files (e.g., image.jpg.[ID].rar ) and leave a ransom note named Read.txt .