' Using sql code by Joseph Gama & ShoeBoy
' http://searchwindevelopment.techtarget.com/tip/0,289483,sid8_gci841704,00.html

' server = computername or ip address
server = "127.0.0.1"

' database = database where encrypted sp's are
database = "northwind"

' drop = if you want to make sure the decryption sp is dropped set to 1 else set to 0
drop = 1

'on error resume next
set conn = createobject("adodb.connection")
set rs = createobject("adodb.recordset")
connstring = "Driver={SQL Server};Server=" & server & ";Database=" & database & ";Trusted_Connection=yes;" 
conn.open connstring

set dropsp = conn.execute("drop PROCEDURE sp_decrypt_sp")
set dropsp = nothing
set createsp = conn.execute(getdecryptsp())
set createsp = nothing

sql = "select name, count(*) as c from sysobjects inner join syscomments on sysobjects.id = syscomments.id where xtype = 'P' and encrypted = 1 group by name;"
rs.open sql,conn
set name = rs("name")
set c = rs("c")
do
   if c > 1 then
      wscript.echo name & " - To large to decrypt "
   else
      sql = "sp_decrypt_sp " & name & ";"
      set decrypt = conn.execute(sql)
      set decrypt = nothing
      if err.number = 0 then 
         wscript.echo name & " - Decrypted "
      else
         wscript.echo name & " - Decryption Error  "
      end if


   end if
   err.clear
   rs.movenext
loop until rs.eof

if drop = 1 then 
   set dropsp = conn.execute("drop PROCEDURE sp_decrypt_sp")
   set dropsp = nothing
end if

function getdecryptsp()
   decryptsp = ""
   decryptsp = decryptsp & "create PROCEDURE sp_decrypt_sp (@objectName varchar(50))" & vbcrlf
   decryptsp = decryptsp & "AS" & vbcrlf
   decryptsp = decryptsp & "DECLARE  @OrigSpText1 nvarchar(4000),  @OrigSpText2 nvarchar(4000) , @OrigSpText3 nvarchar(4000), @resultsp nvarchar(4000)" & vbcrlf
   decryptsp = decryptsp & "declare  @i int , @t bigint" & vbcrlf
   decryptsp = decryptsp & "" & vbcrlf
   decryptsp = decryptsp & "--get encrypted data" & vbcrlf
   decryptsp = decryptsp & "SET @OrigSpText1=(SELECT ctext FROM syscomments  WHERE id = object_id(@objectName))" & vbcrlf
   decryptsp = decryptsp & "SET @OrigSpText2='ALTER PROCEDURE '+ @objectName +' WITH ENCRYPTION AS '+REPLICATE('-', 3938)" & vbcrlf
   decryptsp = decryptsp & "EXECUTE (@OrigSpText2)" & vbcrlf
   decryptsp = decryptsp & "" & vbcrlf
   decryptsp = decryptsp & "SET @OrigSpText3=(SELECT ctext FROM syscomments  WHERE id = object_id(@objectName))" & vbcrlf
   decryptsp = decryptsp & "SET @OrigSpText2='CREATE PROCEDURE '+ @objectName +' WITH ENCRYPTION AS '+REPLICATE('-', 4000-62)" & vbcrlf
   decryptsp = decryptsp & "" & vbcrlf
   decryptsp = decryptsp & "--start counter" & vbcrlf
   decryptsp = decryptsp & "SET @i=1" & vbcrlf
   decryptsp = decryptsp & "--fill temporary variable" & vbcrlf
   decryptsp = decryptsp & "SET @resultsp = replicate(N'A', (datalength(@OrigSpText1) / 2))" & vbcrlf
   decryptsp = decryptsp & "" & vbcrlf
   decryptsp = decryptsp & "--loop" & vbcrlf
   decryptsp = decryptsp & "WHILE @i<=datalength(@OrigSpText1)/2" & vbcrlf
   decryptsp = decryptsp & "BEGIN" & vbcrlf
   decryptsp = decryptsp & "--reverse encryption (XOR original+bogus+bogus encrypted)" & vbcrlf
   decryptsp = decryptsp & "SET @resultsp = stuff(@resultsp, @i, 1, NCHAR(UNICODE(substring(@OrigSpText1, @i, 1)) ^" & vbcrlf
   decryptsp = decryptsp & "                                (UNICODE(substring(@OrigSpText2, @i, 1)) ^" & vbcrlf
   decryptsp = decryptsp & "                                UNICODE(substring(@OrigSpText3, @i, 1)))))" & vbcrlf
   decryptsp = decryptsp & " SET @i=@i+1" & vbcrlf
   decryptsp = decryptsp & "END" & vbcrlf
   decryptsp = decryptsp & "--drop original SP" & vbcrlf
   decryptsp = decryptsp & "EXECUTE ('drop PROCEDURE '+ @objectName)" & vbcrlf
   decryptsp = decryptsp & "--remove encryption" & vbcrlf
   decryptsp = decryptsp & "--preserve case" & vbcrlf
   decryptsp = decryptsp & "SET @resultsp=REPLACE((@resultsp),'WITH ENCRYPTION', '')" & vbcrlf
   decryptsp = decryptsp & "SET @resultsp=REPLACE((@resultsp),'With Encryption', '')" & vbcrlf
   decryptsp = decryptsp & "SET @resultsp=REPLACE((@resultsp),'with encryption', '')" & vbcrlf
   decryptsp = decryptsp & "IF CHARINDEX('WITH ENCRYPTION',UPPER(@resultsp) )>0 " & vbcrlf
   decryptsp = decryptsp & "  SET @resultsp=REPLACE(UPPER(@resultsp),'WITH ENCRYPTION', '')" & vbcrlf
   decryptsp = decryptsp & "--replace Stored procedure without enryption" & vbcrlf
   decryptsp = decryptsp & "execute( @resultsp)" & vbcrlf
   getdecryptsp = decryptsp
end function