Spider ransomware is a terrible virus, which may encrypt a different data on your PC, and make impossible to view and edit it. The malware programm, also called “File Spider”, firstly encrypts all known files on your PC and changes files extension on . Since encryption happened, user can’t use infected file(s). Photos and paints can’t be opened and text documents are opened in coded unreadable form. Besides that, the virus creates and opens the PowerShell and in that window shows operations to decode user’s files, by the payloads.