Sql存储过程解密算法破解微软的加密算法

1.把下面的代码在分析器里面执行一次到对应的数据库

-- 程序代码
create PROCEDURE sp_decrypt(@objectname varchar(50)) 
AS 
begin 
set nocount on 
--CSDN：j9988 copyright:2004.07.15 
--V3.2 
--破解字节不受限制，适用于SQL SERVER 2000存储过程，函数，视图，触发器 
--发现有错，请E_MAIL：[email protected] 
begin tran


declare @objectname1 varchar(100),@orgvarbin varbinary(8000)
declare @sql1 nvarchar(4000),@sql2 varchar(8000),@sql3 nvarchar(4000),@sql4 nvarchar(4000)
DECLARE @OrigSpText1 nvarchar(4000), @OrigSpText2 nvarchar(4000) , @OrigSpText3 nvarchar(4000), @resultsp nvarchar(4000)
declare @i int,@status int,@type varchar(10),@parentid int
declare @colid int,@n int,@q int,@j int,@k int,@encrypted int,@number int
select @type=xtype,@parentid=parent_obj from sysobjects where id=object_id(@objectname)


create table #temp(number int,colid int,ctext varbinary(8000),encrypted int,status int)
insert #temp Select number,colid,ctext,encrypted,status FROM syscomments Where id = object_id(@objectname)
select @number=max(number) from #temp
set @k=0


while @k<=@number 
   begin
   if exists(select 1 from syscomments where id=object_id(@objectname) and number=@k)
    begin
    if @type='P'
    set @sql1=(case when @number>1 then 'Alter PROCEDURE '+ @objectname +';'+rtrim(@k)+' WITH ENCRYPTION AS '
    else 'Alter PROCEDURE '+ @objectname+' WITH ENCRYPTION AS '
    end)


    if @type='TR'
     begin
      declare @parent_obj varchar(255),@tr_parent_xtype varchar(10)
      select @parent_obj=parent_obj from sysobjects where id=object_id(@objectname)
      select @tr_parent_xtype=xtype from sysobjects where id=@parent_obj
      if @tr_parent_xtype='V'
       begin
        set @sql1='Alter TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION INSTERD OF Insert AS PRINT 1 '
       end
      else
       begin
        set @sql1='Alter TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION FOR Insert AS PRINT 1 '
       end
     end
    if @type='FN' or @type='TF' or @type='IF'
     set @sql1=(case @type when 'TF' then 
     'Alter FUNCTION '+ @objectname+'(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end '
     when 'FN' then
     'Alter FUNCTION '+ @objectname+'(@a char(1)) returns char(1) with encryption as begin return @a end'
     when 'IF' then
     'Alter FUNCTION '+ @objectname+'(@a char(1)) returns table with encryption as return select @a as a'
     end)


    if @type='V'
     set @sql1='Alter VIEW '+@objectname+' WITH ENCRYPTION AS Select 1 as f'


    set @q=len(@sql1)
    set @sql1=@sql1+REPLICATE('-',4000-@q)
    select @sql2=REPLICATE('-',8000)
    set @sql3='exec(@sql1'
    select @colid=max(colid) from #temp where number=@k 
    set @n=1


    while @n<=CEILING(1.0*(@colid-1)/2) and len(@sql3)<=3996
    begin 
     set @sql3=@sql3+'+@'
     set @n=@n+1
    end
    set @sql3=@sql3+')'
    exec sp_executesql @sql3,N'@sql1 nvarchar(4000),@ varchar(8000)',@sql1=@sql1,@=@sql2
   end
   set @k=@k+1 
end --对应while


set @k=0
while @k<=@number 
begin
   if exists(select 1 from syscomments where id=object_id(@objectname) and number=@k)
    begin
     select @colid=max(colid) from #temp where number=@k 
     set @n=1
     while @n<=@colid
      begin
       select @OrigSpText1=ctext,@encrypted=encrypted,@status=status FROM #temp Where colid=@n and number=@k
       SET @OrigSpText3=(Select ctext FROM syscomments Where id=object_id(@objectname) and colid=@n and number=@k)
       if @n=1
        begin
         if @type='P'
         SET @OrigSpText2=(case when @number>1 then 'Create PROCEDURE '+ @objectname +';'+rtrim(@k)+' WITH ENCRYPTION AS '
         else 'Create PROCEDURE '+ @objectname +' WITH ENCRYPTION AS '
         end)


         if @type='FN' or @type='TF' or @type='IF'
          SET @OrigSpText2=(case @type when 'TF' then 
          'Create FUNCTION '+ @objectname+'(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end '
          when 'FN' then
          'Create FUNCTION '+ @objectname+'(@a char(1)) returns char(1) with encryption as begin return @a end'
          when 'IF' then
          'Create FUNCTION '+ @objectname+'(@a char(1)) returns table with encryption as return select @a as a'
          end)


         if @type='TR' 
         begin
          if @tr_parent_xtype='V'
          begin
           set @OrigSpText2='Create TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION INSTEAD OF Insert AS PRINT 1 '
          end
          else
          begin
           set @OrigSpText2='Create TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION FOR Insert AS PRINT 1 '
          end


         end


         if @type='V'
         
          set @OrigSpText2='Create VIEW '+@objectname+' WITH ENCRYPTION AS Select 1 as f'


          set @q=4000-len(@OrigSpText2)
          set @OrigSpText2=@OrigSpText2+REPLICATE('-',@q)
         end
         else
          begin
           SET @OrigSpText2=REPLICATE('-', 4000)
          end
SET @i=1


SET @resultsp = replicate(N'A', (datalength(@OrigSpText1) / 2))


WHILE @i<=datalength(@OrigSpText1)/2
BEGIN


SET @resultsp = stuff(@resultsp, @i, 1, NCHAR(UNICODE(substring(@OrigSpText1, @i, 1)) ^
(UNICODE(substring(@OrigSpText2, @i, 1)) ^
UNICODE(substring(@OrigSpText3, @i, 1)))))
SET @i=@i+1
END
set @orgvarbin=cast(@OrigSpText1 as varbinary(8000))
set @resultsp=(case when @encrypted=1 
then @resultsp 
else convert(nvarchar(4000),case when @status&2=2 then uncompress(@orgvarbin) else @orgvarbin end)
end)
print @resultsp


set @n=@n+1


end


end
set @k=@k+1
end


drop table #temp
rollback tran


end

go

2.分析器里面选择你需要的存储过程执行

-- Sql存储过程解密算法破解微软的加密算法.网上同样有很多的Sql存储过程的解密软件，但大都是收费的。 
-- 下边是网上流传的Sql存储过程解密算法，虽非官方，但绝对可行！同样可用于解密SQL存储过程或者触发器。 
exec sp_decrypt [GSP_GP_Get98pkGoods] 
EXEC sp_helptext GSP_GR_Get98pkGoods

sql server  2005

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