- 昂捷論壇 (http://m.yzsenyi.com/bbs/index.asp)
-- □-技術(shù)研討會(huì) (http://m.yzsenyi.com/bbs/list.asp?boardid=36)
---- SqlServer 2000和2005存儲(chǔ)過(guò)程破解 (http://m.yzsenyi.com/bbs/dispbbs.asp?boardid=36&id=7709)
-- 發(fā)布時(shí)間：2010/9/8 23:46:11
-- SqlServer 2000和2005存儲(chǔ)過(guò)程破解
親自測(cè)試了一下,發(fā)現(xiàn)2k的確實(shí)可以破解. sk5的可能需要搞到master表.
原文如下
===========================================================================
SQL Server加密存儲(chǔ)過(guò)程用到“WITH ENCRYPTION”參數(shù)的時(shí)候，就可以將它加密，這種加密方式是不可逆的，再也不能打開(kāi)了，嗚嗚～那么我們改怎么樣才能看到原來(lái)的代碼而不破壞這個(gè)存儲(chǔ)過(guò)程呢？icech在網(wǎng)上找到了兩個(gè)十分十分大牛的人！一個(gè)是j9988，早在2004年就寫了一個(gè)可以破解加密的存儲(chǔ)過(guò)程，支持SQL Server 2000非常的好；另一個(gè)是王成輝翻譯老外寫的一個(gè)，竟然可以支持SQL Server 2005版本！
如何加密SQL Server存儲(chǔ)過(guò)程？
命令如：
CREATE Procedure 存儲(chǔ)過(guò)程名(...) WITH ENCRYPTION AS ...
SQLServer2005里使用with encryption選項(xiàng)創(chuàng)建的存儲(chǔ)過(guò)程仍然和sqlserver2000里一樣，都是使用XOR進(jìn)行了的加密。和2000不一樣的是，在2005的系統(tǒng)表syscomments里已經(jīng)查不到加密過(guò)的密文了。要查密文必須使用DAC（專用管理員連接）連接到數(shù)據(jù)庫(kù)后，在系統(tǒng)表 sys.sysobjvalues查詢，該表的列imageval存儲(chǔ)了相應(yīng)的密文。具體可以使用下面的查詢：
SELECT imageval FROM sys.sysobjvalues WHERE objid = object_id(@procedure) AND
valclass = 1 AND subobjid = 1
針對(duì)SQL Server 2000的解密存儲(chǔ)過(guò)程
create PROCEDURE sp_decrypt(@objectname varchar(50))
AS
begin
set nocount on
--CSDN：j9988 copyright:2004.07.15
--V3.2
--破解字節(jié)不受限制，適用于SQLSERVER2000存儲(chǔ)過(guò)程，函數(shù)，視圖，觸發(fā)器
--修正上一版"視圖觸發(fā)器"不能正確解密錯(cuò)誤
--發(fā)現(xiàn)有錯(cuò)，請(qǐng)E_MAIL：CSDNj9988@tom.com
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
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
-- 發(fā)布時(shí)間：2010/9/8 23:46:27
--
針對(duì)SQL Server 2005的解密存儲(chǔ)過(guò)程
create PROCEDURE [dbo].[sp__windbi$decrypt]
(@procedure sysname = NULL, @revfl int = 1)
AS
/*
王成輝翻譯整理，轉(zhuǎn)貼請(qǐng)注明出自微軟BI開(kāi)拓者www.windbi.com
目前這個(gè)存儲(chǔ)過(guò)程只能解密存儲(chǔ)過(guò)程，至于解密函數(shù)、觸發(fā)器、視圖的存儲(chǔ)過(guò)程本網(wǎng)站會(huì)進(jìn)一步關(guān)注，調(diào)用形式為：
exec dbo.sp__windbi$decrypt @procedure,0
如果第二個(gè)參數(shù)使用1的話，會(huì)給出該存儲(chǔ)過(guò)程的一些提示。
--版本2.0
*/
SET NOCOUNT ON
IF @revfl = 1
BEGIN
PRINT \'警告：該存儲(chǔ)過(guò)程會(huì)刪除并重建原始的存儲(chǔ)過(guò)程。\'
PRINT \' 在運(yùn)行該存儲(chǔ)過(guò)程之前確保你的數(shù)據(jù)庫(kù)有一個(gè)備份。\'
PRINT \' 該存儲(chǔ)過(guò)程通常應(yīng)該運(yùn)行在產(chǎn)品環(huán)境的一個(gè)備份的非產(chǎn)品環(huán)境下。\'
PRINT \' 為了運(yùn)行這個(gè)存儲(chǔ)過(guò)程，將參數(shù)@refl的值更改為0。\'
RETURN 0
END
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 @maxColID as \'Rows in sys.sysobjvalues\'
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 = \'\'
--提取對(duì)象的類型如是存儲(chǔ)過(guò)程還是函數(shù)，如果是觸發(fā)器，還要得到其父對(duì)象的名稱
select @objtype=type,@parentname=object_name(parent_object_id)
from sys.objects where [object_id]=object_id(@procedure)
-- 從sys.sysobjvalues里提出加密的imageval記錄
SET @real_01=(SELECT top 1 imageval FROM sys.sysobjvalues WHERE objid =
object_id(@procedure) and valclass = 1 order by subobjid)
--創(chuàng)建一個(gè)臨時(shí)表
create table #output ( [ident] [int] IDENTITY (1, 1) NOT NULL ,
[real_decrypt] NVARCHAR(MAX) )
--開(kāi)始一個(gè)事務(wù)，稍后回滾
BEGIN TRAN
--更改原始的存儲(chǔ)過(guò)程，用短橫線替換
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)
--從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)+\'*/\'
--開(kāi)始計(jì)數(shù)
SET @intProcSpace=1
--使用字符填充臨時(shí)變量
SET @real_decrypt_01 = replicate(N\'A\', (datalength(@real_01) /2 ))
--循環(huán)設(shè)置每一個(gè)變量，創(chuàng)建真正的變量
--每次一個(gè)字節(jié)
SET @intProcSpace=1
--如有必要，遍歷每個(gè)@real_xx變量并解密
WHILE @intProcSpace<=(datalength(@real_01)/2)
BEGIN
--真的和假的和加密的假的進(jìn)行異或處理
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
--通過(guò)sp_helptext邏輯向表#output里插入變量
insert #output (real_decrypt) select @real_decrypt_01
-- select real_decrypt AS \'#output chek\' from #output --測(cè)試
-- -------------------------------------
--開(kāi)始從sp_helptext提取
-- -------------------------------------
declare @dbname sysname
,@BlankSpaceAdded int
,@BasePos int
,@CurrentPos int
,@TextLength int
,@LineId int
,@AddOnLen int
,@LFCR int --回車換行的長(zhǎng)度
,@DefinedLength int
,@SyscomText nvarchar(4000)
,@Line nvarchar(255)
Select @DefinedLength = 255
SELECT @BlankSpaceAdded = 0 --跟蹤行結(jié)束的空格。注意Len函數(shù)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
--獲取文本
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
--通過(guò)回車查找行的結(jié)束
SELECT @CurrentPos = CHARINDEX(char(13)+char(10), @SyscomText,
@BasePos)
--如果找到回車
IF @CurrentPos != 0
BEGIN
--如果@Lines的長(zhǎng)度的新值比設(shè)置的大就插入@Lines目前的內(nèi)容并繼續(xù)
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
--如果回車沒(méi)找到
BEGIN
IF @BasePos <= @TextLength
BEGIN
--如果@Lines長(zhǎng)度的新值大于定義的長(zhǎng)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
-- -------------------------------------
--結(jié)束從sp_helptext提取
-- -------------------------------------
--刪除用短橫線創(chuàng)建的存儲(chǔ)過(guò)程并重建原始的存儲(chǔ)過(guò)程
ROLLBACK TRAN
DROP TABLE #output
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