Hi, Yes - you've sent it twice. This allows me to explain the following:
As followup to my message, it is not just cookies which we (the programmers) use to "open up" a sysstem as our "playground" - the biggest hole is programs themselves and how CPU treats data and instructions. A CPU does not know what it is doing unless a program or an operating system tells it what to do. Here's a textual diagram of how a malware could take control of your Braille Sense: You download a media player that claims to play Real Media formats. You install it and run it. While the program plays Real Video files, the program loads a second module from itself, namely the malware program. This module searches Flash Disk of your Braille Sense and finds files to open and modify it with its code (called infecting). Then it closes the file and finds other files to infect. If Windows CE's file manager (filesys.exe) was smart enough to detect changes in modification date/time of your files and if an anti-virus program is installed, the operating system will warn you that there might be a virus running around your braille Sense. These days, programmers are smart enough to "fool" the operating system to believing that they are "normal" programs - either by keeping the original modified date/time intact on infected files, or frequently changing its code to a different variant (called polymorphic code, which is hard to detect). Some advanced viruses changes its code completely but still offers almost same algorithms (this is called metamorphic code). As I said earlier, unless the malware destroyed important blocks of ROM, you can "cure" your Braille Sense via Hard Reset, if the above hypothetical scenario did happen. Now you know why experts in computer science are called "hackers". Cheers, Joseph From: Celeste Williams [mailto:[email protected]] Sent: Tuesday, August 31, 2010 12:01 AM To: [email protected] Subject: [GWN] Viruses I hope I'm not sending this twice. I was having trouble sending email. I asked this question a while back. I asked if the GW notetakers could get a virus and got the answer that not since they don't' support cookies. Now that they do, could viruses be a problem? If so, what can a person do to prevent the notetakers from getting a virus? Thanks. Celeste and Dealer Have an awesome blessed day! If you wish to unsubscribe from this list, visit: http://www.gwmicro.com/listserv If you wish to unsubscribe from this list, visit: http://www.gwmicro.com/listserv
