xp_cmdshell禁用及新的恢复办法

删除

drop procedure sp_addextendedproc

drop procedure sp_oacreate

exec sp_dropextendedproc 'xp_cmdshell'

恢复

dbcc addextendedproc ("sp_oacreate","odsole70.dll")

dbcc addextendedproc ("xp_cmdshell","xplog70.dll")

这样可以直接恢复，不用去管sp_addextendedproc是不是存在

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删除扩展存储过过程xp_cmdshell的语句:

exec sp_dropextendedproc 'xp_cmdshell'

恢复cmdshell的sql语句

exec sp_addextendedproc xp_cmdshell ,@dllname ='xplog70.dll'

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

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删除sql危险存储：

DROP PROCEDURE sp_makewebtask

exec master..sp_dropextendedproc xp_cmdshell

exec master..sp_dropextendedproc xp_dirtree

exec master..sp_dropextendedproc xp_fileexist

exec master..sp_dropextendedproc xp_terminate_process

exec master..sp_dropextendedproc sp_oamethod

exec master..sp_dropextendedproc sp_oacreate

exec master..sp_dropextendedproc xp_regaddmultistring

exec master..sp_dropextendedproc xp_regdeletekey

exec master..sp_dropextendedproc xp_regdeletevalue

exec master..sp_dropextendedproc xp_regenumkeys

exec master..sp_dropextendedproc xp_regenumvalues

exec master..sp_dropextendedproc sp_add_job

exec master..sp_dropextendedproc sp_addtask

exec master..sp_dropextendedproc xp_regread

exec master..sp_dropextendedproc xp_regwrite

exec master..sp_dropextendedproc xp_readwebtask

exec master..sp_dropextendedproc xp_makewebtask

exec master..sp_dropextendedproc xp_regremovemultistring

exec master..sp_dropextendedproc sp_OACreate

DROP PROCEDURE sp_addextendedproc

/*不狐 附上恢复扩展存储过程的办法

先恢复sp_addextendedproc，语句如下：

SQL代码：

create procedure sp_addextendedproc --- 1996/08/30 20:13

@functname nvarchar(517),/* (owner.)name of function to call */ @dllname varchar(255)/* name of DLL containing function */ as

set implicit_transactions off

if @@trancount > 0

begin

raiserror(15002,-1,-1,'sp_addextendedproc')

return (1)

end

dbcc addextendedproc( @functname, @dllname)

return (0) -- sp_addextendedproc

GO

再恢复以上所有扩展存储过程

SQL代码：

use master

exec sp_addextendedproc xp_cmdshell,'xp_cmdshell.dll'

exec sp_addextendedproc xp_dirtree,'xpstar.dll'

exec sp_addextendedproc xp_enumgroups,'xplog70.dll'

exec sp_addextendedproc xp_fixeddrives,'xpstar.dll'

exec sp_addextendedproc xp_loginconfig,'xplog70.dll'

exec sp_addextendedproc xp_enumerrorlogs,'xpstar.dll'

exec sp_addextendedproc xp_getfiledetails,'xpstar.dll'

exec sp_addextendedproc sp_OACreate,'odsole70.dll'

exec sp_addextendedproc sp_OADestroy,'odsole70.dll'

exec sp_addextendedproc sp_OAGetErrorInfo,'odsole70.dll'

exec sp_addextendedproc sp_OAGetProperty,'odsole70.dll'

exec sp_addextendedproc sp_OAMethod,'odsole70.dll'

exec sp_addextendedproc sp_OASetProperty,'odsole70.dll'

exec sp_addextendedproc sp_OAStop,'odsole70.dll'

exec sp_addextendedproc xp_regaddmultistring,'xpstar.dll'

exec sp_addextendedproc xp_regdeletekey,'xpstar.dll'

exec sp_addextendedproc xp_regdeletevalue,'xpstar.dll'

exec sp_addextendedproc xp_regenumvalues,'xpstar.dll'

exec sp_addextendedproc xp_regread,'xpstar.dll'

exec sp_addextendedproc xp_regremovemultistring,'xpstar.dll'

exec sp_addextendedproc xp_regwrite,'xpstar.dll'

exec sp_addextendedproc xp_availablemedia,'xpstar.dll'