In theory, you should be safe if you play with your mods or cheats in VAC enabled games ONLY IN OFFLINE MODE WITHOUT INTERNET, or WHILE NOT CONNECTED TO A VAC SECURED SERVER. This will obviously happen if you're playing in an online game, or in a single player game with leaderboards or other type of data that's going to be compared with others players, and saved. You can check this if you set your firewall to a "learning mode" so any data that is trying to be sent, the firewall will ask you first if you allow this.
And once it detects a memory modification, this memory log is sent using the Steam client's reporter to that server.
A VAC enabled game is constantly checking for forced memory modifications (via memory modifiers like Cheat Engine, trainers, or modified game files) WHILE CONNECTED TO A VAC SECURED SERVER, to find gamers cheating in an online multiplayer game. On page two, we mod Dark Souls 2.Wait a minute, I think you're a little confused here. Nwks achieved the Dark Souls 1 frame rate unlocking using this process, and something similar might be possible for Dark Souls 2.įor now, we're going with the interception method. It can-in theory-be used to accomplish anything, but in practice this is often not feasible for large modern games due to the reverse engineering effort necessary to understand their code base to the degree required for meaningful alterations. In this process, some binary instructions in the original program are replaced with different ones, resulting in an altered behavior. Modifying the code of a running program directly in memory is the most powerful, but also most complex, form of modification. This difficulty is the reason why SweetFX works well with a great number of games: it simply changes the output image at the very end before it is presented on the monitor, and this point is easy to generically identify. Crucially, a library call or sequence of calls has to be determined which uniquely identifies what a program is doing at that given point in time. The largest challenge when writing an interceptor (beyond the mechanics of interception) is understanding the original program's behavior and determining how to alter it in order to achieve the desired effect. That alone would generally just break rendering-you also need to adjust rendering viewports, projection matrices, scissor rectangles and potentially shader parameters to make it work-but this is the basic idea. DSfix took this request, changed the resolution to whatever the user desired, and gave the subsequently generated surface back to Dark Souls. In simplified terms, DS1 asked Direct3D for a 1024x720 surface to render the game to. As an example, think of Dark Souls 1 and DSFix. It then reports its return values-or entirely different ones-to the program. An interceptor, as the name suggests, intercepts the program's library calls, altering them before they reach the library.
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