禁止管理帐户对Users目录下所有文件的执行权限

平时经常需要维护具有很多远程桌面用户的系统里，可能会不小心运行了用户上传的EXE文件。

所以设计了这套程序，防止这种现象的事情发生。

  

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>
        /// 禁止管理帐户对Users目录下所有文件的执行权限
        /// </summary>
        static void denyExecuteFileOfAdminAtUsers()
        {
            Console.Title = "禁止管理帐户对Users目录下所有文件的执行权限";
            string FileName = @"C:Users";
            DirectoryInfo dInfo = new DirectoryInfo(FileName);
            foreach (DirectoryInfo dInfo2 in dInfo.GetDirectories())
            {
                if (isExistUser(dInfo2.Name))
                {
                    bool ret = SetAccessControl_denyExecuteFile(dInfo2, @"BUILTINAdministrators");
                    Console.WriteLine("dInfo2=>" + dInfo2.Name + " ret:" + ret.ToString());
                }
            }
            Console.WriteLine("Finish.");
        }

        /// <summary>
        /// 禁止管理帐户对指定目录下所有文件的执行权限
        /// </summary>
        /// <param name="dInfo"></param>
        /// <returns></returns>
        static bool SetAccessControl_denyExecuteFile(DirectoryInfo dInfo, string Account = @"BUILTINAdministrators")
        {
            if (!dInfo.Exists)
            {
                return false;
            }
            //string Account = @"BUILTINAdministrators";
            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>
        /// 判断用户名是否存在
        /// </summary>
        /// <param name="username">用户名</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>
        /// 添加远程桌面用户
        /// </summary>
        /// <param name="username">用户名</param>
        /// <param name="password">密码</param>
        /// <param name="displayName">显示名称</param>
        /// <returns>是否创建成功</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;
        }
    }
}