what is "77" virus? my GameGuard Anti Virus V2 Plugin detected this script as "77" virus

hello my anti virus plugin detected this script is virus as "77" and what is "77" and what do you think about this script? does it contain viruses? btw i'm using GameGuard Anti Virus V2 Plugin

--Sound id's are for an EMD 567E3 engine sound set Crank = script.Parent.Crank Engine = script.Parent.Engine Move = script.Parent.Move Engine.SoundId = "rbxassetid://4350210821" Startup = "rbxassetid://4350209751" --Two parts of a compressor sound with it's start and loop. Startup2 = "rbxassetid://160735142" Move.SoundId = "rbxassetid://452475904" Shutdown = "rbxassetid://137884205" function VentsOn(Bool) local V = Bool local Get = script.Parent.Parent:GetChildren() for i = 1, #Get do if Get[i].Name == "Vent" then Get[i].Smoke.Enabled = V end end end script.Parent.Parent:WaitForChild("Drive").Locotrol.Event:connect(function(data) if data["Engine"]==true then Crank.SoundId = Startup Crank:Play() wait(Crank.TimeLength) Crank.SoundId = Startup2 Crank:Play() wait(3)--Adjust the length to run the compressor. Crank:Stop() Engine:Play() VentsOn(true) Move.Run.Disabled = false elseif data["Engine"]==false then Move.Run.Disabled = true Engine:Stop() Crank.SoundId = Shutdown Crank:Play() VentsOn(false) end end) --Engine Sound Code, Metrotren