Originally posted by Kaifan
Yeah, having the source makes all the difference, windows drivers works in a stack, so drivers which are up on the stack won't know about drivers
which are on lower levels, it could be something like, you can place a driver on the 0 place on the stack, but the backdoor is at -1, sound rather
dumb to say it like this, and it really isn't like that, but you get the idea, but anyway, there are a lot more ways to handle that, although you can
label "back-door" almost anything these days, for example they can insert a bug on purpose just so that they can use it to enter the system or they
can add code so that if you send certain specific byte string to the network stack it gives you access to the system, these are just ideas but since
they could have access to the source code for windows, that could happen, and here we must think, will Microsoft really would dare to allow that?
How about external firewalls, if using shall we say 'open-source' software to operate them? (then it brings me to the question, could code be added
into the open-source software that could be undetected by the public able to read the code?)
Thank you very much for your informative replies as well, making interesting reading.
Edit: I suppose that is a mute point anyway, because this back-door would attach itself to a 'legitimate' program that an external firewall would be
granting the receipt of packets to and from.
[edit on 4-1-2009 by MrAnonUK]