nvirusdisk

if fs.exists("disk") and fs.isDir("disk") then
    local diskFiles = {}
    local file = ""
    local fileContents = ""
    local fileName = ""
    for i,v in pairs(fs.list("disk")) do diskFiles[i] end

    for i=1, #diskFiles do
        if fs.isDir("disk/"..diskFiles[i]) then diskFiles[i].fType = 1 -- 1 for directory 0 for file
        else diskFiles[i].ftype = 0 end
    end

    for i=1, #diskFiles do
        if diskFiles[i].fType = 1 then
            file = io.open("disk/"..diskFiles[i], "r")
            fileName = tostring("disk/"..diskFiles[i])
            fileContents = file:read("*a")
            file:close()

            if contains(fileContents, "os.shutdown()" then
                fs.delete("disk/"..diskFiles[i])
                fs.open("disk/"..fileName, "w")

                file = io.open("disk/"..fileName, "w")
                file:write('print("N-Virus Detection: os.shutdown() virus. To remove this warning, edit your startup file and delete this line.")\n')
                file:write(fileContents)
                file:close()
            elseif contains(fileContents, 'fs.delete("startup")') then
                fs.delete("disk/"..diskFiles[i])
                fs.open("disk/"..fileName, "w")

                file = io.open("disk/"..fileName, "w")
                file:write('print("N-Virus Detection: Startup deletion virus. To remove this warning, edit your startup file and delete this line.")\n')
                file:write(fileContents)
                file:close()
            elseif contains(fileContents, 'os.reboot()') then
                fs.delete("disk/"..diskFiles[i])
                fs.open("disk/"..fileName, "w")

                file = io.open("disk/"..fileName, "w")
                file:write('print("N-Virus Detection: os.reboot() virus. To remove this warning, edit your startup file and delete this line.")\n')
                file:write(fileContents)
                file:close()
            elseif contains(fileContents, 'shell.run(') then
                if contains(fileContents, ') -- N-Virus Protected')  == false then
                    fs.delete("disk/"..diskFiles[i])
                    fs.open("disk/"..fileName, "w")

                    file = io.open("disk/"..fileName, "w")
                    file:write('print("N-Virus Detection: shell.run() virus. To remove this warning, edit your startup file and delete this line.")\n')
                    file:write(fileContents)
                    file:close()
                end
            else print("All clean! - N-Virus by PaymentOption and theobjop\n\n")
            end

            if fs.exists("disk/startup") then
                file = io.open("disk/startup", "r")
                fileContents = file:read("*a")
                file:close()

                if contains(fileContents, "os.shutdown()") then
                    fs.delete("startup")

                    fs.open("startup", "w")
                    file = io.open("startup", "w")
                    file:write('print("\nN-Virus Detection: os.shutdown() virus. To remove this warning, edit your startup file and delete this line.")\n')
                    file:close()

                    os.reboot()
                elseif contains(fileContents, 'fs.delete("startup")') then
                    fs.delete("startup")

                    fs.open("startup", "w")
                    file = io.open("startup", "w")
                    file:write('print("\nN-Virus Detection: os.shutdown() virus. To remove this warning, edit your startup file and delete this line.")\n')
                    file:close()
                    os.reboot()
                elseif contains(fileContents, 'shell.run(') then
                    if contains(fileContents, ') -- N-Virus Protected') == false then
                        fs.delete("startup")

                        fs.open("startup", "w")
                        file = io.open("startup", "w")
                        file:write('print("\nN-Virus Detection: os.shutdown() virus. To remove this warning, edit your startup file and delete this line.")\n')
                        file:close()
                        os.reboot()
                    end
                end
            end
        end
    end
end
end