This is my FIRST EVER ATTEMPT at a Roblox anti-cheat! It’s really bad and I didn’t spent that much time on it. I just need people to critique it so that I can improve it. It kinda works at the moment but at the same time it can definitely be bypassed; easily. Thank you
I probably messed up a lot, especially with the handshakes. Yeah I tried I guess… you can criticize it as much as you need
Im gonna try to add a way to check if the distance traveled by a player is sane and also detecting no clipping
I’m gonna probably not make another whole new post until I think it’s decent; well with the changes people suggested.
Anyways, here’s the code:
Client:
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Handshake = ReplicatedStorage.Handshake
local GiveInfiniteCoins = ReplicatedStorage.GiveInfiniteCoins
local Player = game.Players.LocalPlayer
local Character = Player.Character or Player.CharacterAdded:Wait()
local HumanoidRootPart = Character:WaitForChild("HumanoidRootPart")
local Humanoid = Character:WaitForChild("Humanoid")
task.spawn(function()
while task.wait(2.5) do
Handshake:FireServer()
end
end)
while task.wait(5) do
if Humanoid.WalkSpeed > 16 then
end
end
Server:
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local RunService = game:GetService("RunService")
local Handshake = ReplicatedStorage.Handshake
local GiveInfiniteCoins = ReplicatedStorage.GiveInfiniteCoins
local Tracker = {}
local function checkStrikes(player)
if Tracker[player.Name] and Tracker[player.Name].STRIKES == 3 then
player:Kick("Too many strikes! Are you a hacker??")
else
warn("STRIKE GIVEN TO "..player.Name.."")
end
end
game.Players.PlayerAdded:Connect(function(Player)
Player.CharacterAdded:Connect(function(Character)
local HumanoidRootPart = Character:WaitForChild("HumanoidRootPart")
local Humanoid = Character:WaitForChild("Humanoid")
local leaderstats = Instance.new("Folder")
leaderstats.Name = "leaderstats"
leaderstats.Parent = Player
local Coins = Instance.new("IntValue")
Coins.Name = "Coins"
Coins.Parent = leaderstats
local Rank = Instance.new("IntValue")
Rank.Name = "Rank"
Rank.Parent = leaderstats
Tracker[Player.Name] = {
["STRIKES"] = 0,
["PreviousPosition"] = HumanoidRootPart.Position,
["PreviousTime"] = os.time()
}
local Track = Tracker[Player.Name]
task.spawn(function()
while task.wait(5) do
if os.time() - Track.PreviousTime > 10 and Player then
Track.STRIKES = 3
checkStrikes(Player)
elseif not Player then
Track = nil
end
end
end)
end)
end)
GiveInfiniteCoins.OnServerEvent:Connect(function(Player)
Tracker[Player.Name].STRIKES = 3
checkStrikes(Player)
end)
Handshake.OnServerEvent:Connect(function(Player)
print("Connected.")
Tracker[Player.Name].PreviousTime = os.time()
end)
Is this only client sided? An exploiter can just disable the script and make their own handshake to not be detected. You should make an anticheat on the server and a client anticheat as a smaller barrier since you can’t bypass the server.
Shoot I was gonna but I legit forgot that it only doesn’t detect Position changes unless you do it via script.
I’ll probably fix that today
Yeah it’s kinda clumpy (the original post), but there is a server script. I only put like a little time into this and most of the time I was just reviewing the stuff from my post.
Okay guys I fixed a couple of things and I’m starting a no clipping detection section. Uh yeah and I only made changes to the server sided anti cheat today, at least mostly. I added bloodbonniekingnoob1’s suggestion but other than that I added nothing else to the client sided script.
Idk if im gonna be able to work on it for a bit so yeah heres the updated code:
-- Variables
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local RunService = game:GetService("RunService")
local Handshake = ReplicatedStorage.Handshake
local GiveInfiniteCoins = ReplicatedStorage.GiveInfiniteCoins
local LastCheck = os.time()
local Tracker = {}
local function checkStrikes(player)
if Tracker[player.Name] and Tracker[player.Name].STRIKES == 3 then
player:Kick("Too many strikes! Are you a hacker??")
else
warn("STRIKE GIVEN TO "..player.Name.."")
end
end
local function checkSanity(character)
if not character:FindFirstChild("HumanoidRootPart") and character:FindFirstChild("Humanoid").Health == 0 then -- add more checks in the future
return true
elseif not character:FindFirstChild("HumanoidRootPart") and character:FindFirstChild("Humanoid").Health ~= 0 then
game.Players:GetPlayerFromCharacter(character):Kick("No HumanoidRootPart detected. Don't hack skid.")
end
end
local function isDistanceTraveledSane(player)
if player and workspace:FindFirstChild(player.Name) then
local HumanoidRootPart = player.Character:FindFirstChild("HumanoidRootPart")
if checkSanity(player.Character) and Tracker[player.Name] and (HumanoidRootPart.Position.X - Tracker[player.Name].PreviousPosition.X) > 35
or (HumanoidRootPart.Position.Z - Tracker[player.Name].PreviousPosition.Z) > 35
then
return false
else
Tracker[player.Name].PreviousPosition = HumanoidRootPart.Position
return true
end
end
end
local function isNoClipping(character)
if character and character:FindFirstChild("HumanoidRootPart") and Tracker[character.Name] and Tracker[character.Name].PreviousPosition then
local HumanoidRootPart = character:FindFirstChild("HumanoidRootPart")
local Ray1 = workspace:Raycast(Tracker[character.Name].PreviousPosition, CFrame.new(Tracker[character.Name].PreviousPosition).LookVector * 10)
local Ray2 = workspace:Raycast(HumanoidRootPart.Position, -HumanoidRootPart.CFrame.LookVector * 10)
if Ray1 and Ray2 then
print("take")
local Part1 = Instance.new("Part")
local Part2 = Instance.new("Part")
Part1.Parent = workspace
Part2.Parent = workspace
Part1.Position = Ray1.Position
Part2.Position = Ray2.Position
Part1.BrickColor = BrickColor.new("Tr. Green")
Part2.BrickColor = BrickColor.new("Really red")
Part1.Position = Ray1.Position
Part2.Position = Ray2.Position
Part1.Material = Enum.Material.Neon
Part2.Material = Enum.Material.Neon
Part1.Size = Vector3.new(1, 1, 1)
Part2.Size = Vector3.new(1, 1, 1)
Part1.Anchored = true
Part2.Anchored = true
return true
else
return false
end
end
end
game.Players.PlayerAdded:Connect(function(Player)
Player.CharacterAdded:Connect(function(Character)
local HumanoidRootPart = Character:WaitForChild("HumanoidRootPart")
local Humanoid = Character:WaitForChild("Humanoid")
local leaderstats = Instance.new("Folder")
leaderstats.Name = "leaderstats"
leaderstats.Parent = Player
local Coins = Instance.new("IntValue")
Coins.Name = "Coins"
Coins.Parent = leaderstats
local Rank = Instance.new("IntValue")
Rank.Name = "Rank"
Rank.Parent = leaderstats
Tracker[Player.Name] = {
["STRIKES"] = 0,
["PreviousPosition"] = HumanoidRootPart.Position,
["PreviousTime"] = os.time()
}
local Track = Tracker[Player.Name]
Player.Chatted:Connect(function(msg)
if msg:find("I am a hacker") or msg:find("I hate this game") then
Track.STRIKES = 1
checkStrikes(Player)
end
end)
task.spawn(function()
while task.wait(2.5) do
local Result = isDistanceTraveledSane(Player)
local noClipping = isNoClipping(Character)
if not Result then
Player:Kick("Suspicious movement activity detected.")
end
if noClipping then
Player:Kick("Potential no clipping being performed.")
end
end
end)
task.spawn(function()
while task.wait(5.5) do
if os.time() - Track.PreviousTime > 10 and Player then
Track.STRIKES = 1
checkStrikes(Player)
elseif not Player then
Track = nil
end
end
end)
end)
end)
game.Players.PlayerRemoving:Connect(function(Player)
if Tracker[Player.Name] then
Tracker[Player.Name] = nil
end
end)
GiveInfiniteCoins.OnServerEvent:Connect(function(Player)
Tracker[Player.Name].STRIKES = 3
checkStrikes(Player)
end)
Handshake.OnServerEvent:Connect(function(Player)
Tracker[Player.Name].PreviousTime = os.time()
end)
It does pretty good with the non sane movement detection and stuff but im still trying to figure out the math needed for the no clipping detection because its kinda funky and doesnt work atm.
Client sided if you’re wondering (which I’m copying from the original post cuz im too lazy to hop back on studio to do):
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Handshake = ReplicatedStorage.Handshake
local GiveInfiniteCoins = ReplicatedStorage.GiveInfiniteCoins
local Player = game.Players.LocalPlayer
local Character = Player.Character or Player.CharacterAdded:Wait()
local HumanoidRootPart = Character:WaitForChild("HumanoidRootPart")
local Humanoid = Character:WaitForChild("Humanoid")
task.spawn(function()
while task.wait(2.5) do
Handshake:FireServer()
end
end)
Humanoid:GetPropertyChangedSignal("WalkSpeed"):Connect(function()
warn("walk speed changed")
end)
UPDATES MADE:
Distance check [ON THE SERVER]
No Clip check but it doesn’t work [ON THE SERVER]
Checking if the player still has their HumanoidRootPart [ON THE SERVER]
Changed from a while loop checking if the player’s WalkSpeed is 16 [ON THE CLIENT]
