清除被注入的js代码
declare @delStr nvarchar(500)
set @delStr= '<script src=http://3b3.org/c.js></script>'
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 (231,167,239,175,35) 为char,varchar,nchar,nvarchar,text类型
select name from syscolumns where xtype in (231,167,239,175,35) and id=@tbID
open cur1
fetch next from cur1 into @columnName
while @@fetch_status=0
begin
set @sql= 'update [' + @tableName + '] set ['+ @columnName + ']= replace(cast(['+@columnName+ '] as varchar(8000)), '''+@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
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