禁止管理賬戶對Users目錄下全部文件的執行權限

平時常常須要維護具備不少遠程桌面用戶的系統裏，可能會不當心運行了用戶上傳的EXE文件。

因此設計了這套程序，防止這種現象的事情發生。

  

using System;
using System.IO;
using System.Security.AccessControl;
using System.DirectoryServices.AccountManagement;

namespace xcacls
{
    class Program
    {
        static void Main(string[] args)
        {
            denyExecuteFileOfAdminAtUsers();
            Console.ReadKey();
        }

        /// <summary>
        /// 禁止管理賬戶對Users目錄下全部文件的執行權限
        /// </summary>
        static void denyExecuteFileOfAdminAtUsers()
        {
            Console.Title = "禁止管理賬戶對Users目錄下全部文件的執行權限";
            string FileName = @"C:\Users\";
            DirectoryInfo dInfo = new DirectoryInfo(FileName);
            foreach (DirectoryInfo dInfo2 in dInfo.GetDirectories())
            {
                if (isExistUser(dInfo2.Name))
                {
                    bool ret = SetAccessControl_denyExecuteFile(dInfo2, @"BUILTIN\Administrators");
                    Console.WriteLine("dInfo2=>" + dInfo2.Name + " ret:" + ret.ToString());
                }
            }
            Console.WriteLine("Finish.");
        }

        /// <summary>
        /// 禁止管理賬戶對指定目錄下全部文件的執行權限
        /// </summary>
        /// <param name="dInfo"></param>
        /// <returns></returns>
        static bool SetAccessControl_denyExecuteFile(DirectoryInfo dInfo, string Account = @"BUILTIN\Administrators")
        {
            if (!dInfo.Exists)
            {
                return false;
            }
            //string Account = @"BUILTIN\Administrators";
            FileSystemRights Rights = new FileSystemRights();
            Rights = Rights | FileSystemRights.ExecuteFile;
            DirectorySecurity dSecurity = dInfo.GetAccessControl();
            FileSystemAccessRule AccessRule2 = new FileSystemAccessRule(Account, Rights, InheritanceFlags.ObjectInherit, PropagationFlags.InheritOnly, AccessControlType.Deny);
            bool modified;
            dSecurity.ModifyAccessRule(AccessControlModification.Add, AccessRule2, out modified);
            dInfo.SetAccessControl(dSecurity);
            return modified;
        }

        /// <summary>
        /// 判斷用戶名是否存在
        /// </summary>
        /// <param name="username">用戶名</param>
        /// <returns></returns>
        static bool isExistUser(string username)
        {
            PrincipalContext context = new PrincipalContext(ContextType.Machine);
            UserPrincipal userPrincipal1 = UserPrincipal.FindByIdentity(context, username);
            if (null == userPrincipal1)
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 添加遠程桌面用戶
        /// </summary>
        /// <param name="username">用戶名</param>
        /// <param name="password">密碼</param>
        /// <param name="displayName">顯示名稱</param>
        /// <returns>是否建立成功</returns>
        static bool addRemoteDesktopUser(string username, string password, string displayName = null)
        {
            PrincipalContext context = new PrincipalContext(ContextType.Machine);
            UserPrincipal user = new UserPrincipal(context);
            user.SetPassword(password);
            if (!string.IsNullOrEmpty(displayName))
            {
                user.DisplayName = displayName;
            }
            user.Name = username;
            user.UserCannotChangePassword = true;
            user.PasswordNeverExpires = true;
            try
            {
                user.Save();
            }
            catch (Exception ex)
            {
                return false;
            }
            GroupPrincipal group = GroupPrincipal.FindByIdentity(context, "Remote Desktop Users");
            group.Members.Add(user);
            group.Save();
            return true;
        }
    }
}