修复被注入的sql server

declare @delStr nvarchar(500)

set @delStr='<script src=http://3b3.org/c.js></script>'----这边修改被注入的js

set nocount on

declare @tableName nvarchar(100),@columnName nvarchar(100),@tbID int,@iRow int,@iResult int

declare @sql nvarchar(500)

set @iResult=0

declare cur cursor for

select name,id from sysobjects where xtype='U'

open cur

fetch next from cur into @tableName,@tbID

while @@fetch_status=0

begin

   declare cur1 cursor for

        --xtype in (231,167,239,175) 为char,varchar,nchar,nvarchar类型

        select name from syscolumns where xtype in (231,167,239,175) and id=@tbID

   open cur1

   fetch next from cur1 into @columnName

   while @@fetch_status=0

   begin

      begin try

         set @sql='update [' + @tableName + '] set ['+ @columnName +']= replace(['+@columnName+'],'''+@delStr+''','''') where ['+@columnName+'] like ''%'+@delStr+'%'''

         exec sp_executesql @sql

         set @iRow=@@rowcount

         set @iResult=@iResult+@iRow

         if @iRow>0

         begin

            print '表：[' + @tableName + '],列:'+@columnName+'被更新'+convert(varchar(10),@iRow)+'条记录;'

         end

      end try

      begin catch

      end catch

      fetch next from cur1 into @columnName

   end

   close cur1

   deallocate cur1

   fetch next from cur into @tableName,@tbID

end

print '数据库共有'+convert(varchar(10),@iResult)+'条记录被更新!!!'

close cur

deallocate cur

set nocount off