Microsoft Anti-Debug Patent

SilentK · **Joined:** 15 Jul 2008 01:38 **Posts:** 12

Microsoft has patented their anti-debug protection used on their games and probably other software. The methods described in the patent are brief and not in much detail, however enough information is said to get a general idea of where to start attacking. To view the patent in PDF with images, you need an account at this website. The images were brief and unimportant - more of a visual representation of what was written. The text is what is meaty.

http://www.freepatentsonline.com/y2008/0184198.html

aluigi · **Posted:** 04 Sep 2008 00:44

it seems a time based solution, softice "should" bypass it

Sethioz · **Posted:** 04 Sep 2008 03:27

that was my first tought too, i didn't really read all of it. does anybody know any specific game with such protection on it ? would like to test this theory about softice.

SilentK · **Joined:** 15 Jul 2008 01:38 **Posts:** 12

Yea, all xlive games from Microsoft. I can upload the Halo 2 executable and xlive.dll module if you want?

The detection seems to be event driven.

Sethioz · **Posted:** 05 Sep 2008 22:06

flatout ultimate carnage too then ? because it uses this live shit, but i had no problem using Tsearch with debugger on it.
i had halo 2, but it didnt had live stuff in it. or maybe it was because of crack ?
i want whole game..just to test if its really so hard to bypass

Luigi Auriemma

Microsoft Anti-Debug Patent