这个版本已经在sqlserver20008中破解成功 操作方法： 1.先copy下面这段sql在查询分析器里执行一下，此即为解密存储过程 create procedure [ dbo ] . [ sp_decrypt ] ( @procedure sysname = null ) as set nocount on begin declare @intprocspace bigint ,
这个版本已经在sqlserver20008中破解成功
操作方法：
1.先copy下面这段sql在查询分析器里执行一下，此即为解密存储过程
create procedure [dbo].[sp_decrypt]
(@procedure sysname = null)
as
set nocount on
begin
declare @intprocspace bigint, @t bigint, @maxcolid smallint,@intencrypted
tinyint,@procnamelength int
select @maxcolid = max(subobjid),@intencrypted = imageval from
sys.sysobjvalues where objid = object_id(@procedure)
group by imageval
select @procnamelength = datalength(@procedure) + 29
declare @real_01 nvarchar(max)
declare @fake_01 nvarchar(max)
declare @fake_encrypt_01 nvarchar(max)
declare @real_decrypt_01 nvarchar(max),@real_decrypt_01a nvarchar(max)
declare @objtype varchar(2),@parentname nvarchar(max)
select @real_decrypt_01a = ''
--提取对象的类型如是存储过程还是函数，如果是触发器，还要得到其父对象的名称
select @objtype=type,@parentname=object_name(parent_object_id)
from sys.objects where [object_id]=object_id(@procedure)
-- 从sys.sysobjvalues里提出加密的imageval记录
set @real_01=(select top 1 imageval from sys.sysobjvalues where objid =
object_id(@procedure) and valclass = 1 order by subobjid)
--创建一个临时表
create table #output ( [ident] [int] identity (1, 1) not null ,
[real_decrypt] nvarchar(max) )
--开始一个事务，稍后回滚
begin tran
--更改原始的存储过程，用短横线替换
if @objtype='p'
set @fake_01='alter procedure '+ @procedure +' with encryption as
'+replicate('-', 40003 - @procnamelength)
else if @objtype='fn'
set @fake_01='alter function '+ @procedure +'() returns int with encryption as begin return 1
/*'+replicate('*', datalength(@real_01) /2 - @procnamelength)+'*/ end'
else if @objtype='v'
set @fake_01='alter view '+ @procedure +' with encryption as select 1 as col
/*'+replicate('*', datalength(@real_01) /2 - @procnamelength)+'*/'
else if @objtype='tr'
set @fake_01='alter trigger '+ @procedure +' on '+@parentname+'with encryption after insert as raiserror (''n'',16,10)
/*'+replicate('*', datalength(@real_01) /2 - @procnamelength)+'*/'
execute (@fake_01)
--从sys.sysobjvalues里提出加密的假的
set @fake_encrypt_01=(select top 1 imageval from sys.sysobjvalues where objid =
object_id(@procedure) and valclass = 1 order by subobjid )
if @objtype='p'
set @fake_01='create procedure '+ @procedure +' with encryption as
'+replicate('-', 40003 - @procnamelength)
else if @objtype='fn'
set @fake_01='create function '+ @procedure +'() returns int with encryption as begin return 1
/*'+replicate('*', datalength(@real_01) /2 - @procnamelength)+'*/ end'
else if @objtype='v'
set @fake_01='create view '+ @procedure +' with encryption as select 1 as col
/*'+replicate('*', datalength(@real_01) /2 - @procnamelength)+'*/'
else if @objtype='tr'
set @fake_01='create trigger '+ @procedure +' on '+@parentname+'with encryption after insert as raiserror (''n'',16,10)
/*'+replicate('*', datalength(@real_01) /2 - @procnamelength)+'*/'
--开始计数
set @intprocspace=1
--使用字符填充临时变量
set @real_decrypt_01 = replicate(n'a', (datalength(@real_01) /2 ))
--循环设置每一个变量，创建真正的变量
--每次一个字节
set @intprocspace=1
--如有必要，遍历每个@real_xx变量并解密
while @intprocspace(datalength(@real_01)/2)
begin
--真的和假的和加密的假的进行异或处理
set @real_decrypt_01 = stuff(@real_decrypt_01, @intprocspace, 1,
nchar(unicode(substring(@real_01, @intprocspace, 1)) ^
(unicode(substring(@fake_01, @intprocspace, 1)) ^
unicode(substring(@fake_encrypt_01, @intprocspace, 1)))))
set @intprocspace=@intprocspace+1
end
--通过sp_helptext逻辑向表#output里插入变量
insert #output (real_decrypt) select @real_decrypt_01
-- select real_decrypt as '#output chek' from #output --测试
-- -------------------------------------
--开始从sp_helptext提取
-- -------------------------------------
declare @dbname sysname
,@blankspaceadded int
,@basepos int
,@currentpos int
,@textlength int
,@lineid int
,@addonlen int
,@lfcr int --回车换行的长度
,@definedlength int
,@syscomtext nvarchar(4000)
,@line nvarchar(255)
select @definedlength = 255
select @blankspaceadded = 0 --跟踪行结束的空格。注意len函数忽略了多余的空格
create table #commenttext
(lineid int
,text nvarchar(255) collate database_default)
--使用#output代替sys.sysobjvalues
declare ms_crs_syscom cursor local
for select real_decrypt from #output
order by ident
for read only
--获取文本
select @lfcr = 2
select @lineid = 1
open ms_crs_syscom
fetch next from ms_crs_syscom into @syscomtext
while @@fetch_status >= 0
begin
select @basepos = 1
select @currentpos = 1
select @textlength = len(@syscomtext)
while @currentpos != 0
begin
--通过回车查找行的结束
select @currentpos = charindex(char(13)+char(10), @syscomtext,
@basepos)
--如果找到回车
if @currentpos != 0
begin
--如果@lines的长度的新值比设置的大就插入@lines目前的内容并继续
while (isnull(len(@line),0) + @blankspaceadded +
@currentpos-@basepos + @lfcr) > @definedlength
begin
select @addonlen = @definedlength-(isnull(len(@line),0) +
@blankspaceadded)
insert #commenttext values
( @lineid,
isnull(@line, n'') + isnull(substring(@syscomtext,
@basepos, @addonlen), n''))
select @line = null, @lineid = @lineid + 1,
@basepos = @basepos + @addonlen, @blankspaceadded = 0
end
select @line = isnull(@line, n'') +
isnull(substring(@syscomtext, @basepos, @currentpos-@basepos + @lfcr), n'')
select @basepos = @currentpos+2
insert #commenttext values( @lineid, @line )
select @lineid = @lineid + 1
select @line = null
end
else
--如果回车没找到
begin
if @basepos @textlength
begin
--如果@lines长度的新值大于定义的长度
while (isnull(len(@line),0) + @blankspaceadded +
@textlength-@basepos+1 ) > @definedlength
begin
select @addonlen = @definedlength -
(isnull(len(@line),0) + @blankspaceadded)
insert #commenttext values
( @lineid,
isnull(@line, n'') + isnull(substring(@syscomtext,
@basepos, @addonlen), n''))
select @line = null, @lineid = @lineid + 1,
@basepos = @basepos + @addonlen, @blankspaceadded =
0
end
select @line = isnull(@line, n'') +
isnull(substring(@syscomtext, @basepos, @textlength-@basepos+1 ), n'')
if len(@line) @definedlength and charindex(' ',
@syscomtext, @textlength+1 ) > 0
begin
select @line = @line + ' ', @blankspaceadded = 1
end
end
end
end
fetch next from ms_crs_syscom into @syscomtext
end
if @line is not null
insert #commenttext values( @lineid, @line )
select text from #commenttext order by lineid
close ms_crs_syscom
deallocate ms_crs_syscom
drop table #commenttext
-- -------------------------------------
--结束从sp_helptext提取
-- -------------------------------------
--删除用短横线创建的存储过程并重建原始的存储过程
rollback tran
drop table #output
end
2.启用sqlserver的dac，远程dac启用方法
在查询分析器里运行
exec sp_configure 'remote admin connections', 1;
reconfigure;
3.然后开一个 数据库引擎查询（database engine query），切记这个查询和一般的查询不一样
接下来在弹开的数据库连接对话框里
“服务器名称 ”这一栏里面输入“admin:数据库ip地址或别名”，其他和平时连接一样
4. 这步你懂的 exec sp_decrypt '要破解的存储过程名字'