Why is this happening and what am I doing wrong? if you need more info to be posted make sure to ask and I will provide it.Īfter enabling rtti I am still unable to perform a vmt hook, however I think i am getting closer and closer to it. ![]() My hook works if I use the dynamic address, but if I use the &vTable address then I get wrong results, index counter goes to random numbers and it never hooks anything!Ĭomparison between hk_class and hk_class1Īs you can see the most notable difference is that our virtual functions mismatch, in hk_class1 at the index 0 there is some RTTI complete object locator while there should be my virtual function add(int, int) If we take a look at the comparison we can see both yield different results Hk_class uses the dynamic address for testing purposes Printing out (VOID*)ptr will give us the dynamic address of our object that is hook_this_classīack in my dll I have two seperate classes hk_class = reinterpret_cast(0x08C4138) Std::uintptr_t* ptr = reinterpret_cast((DWORD)vtable - (DWORD)GetModuleHandleA(nullptr)) Now it seems that it does find the class correctly, however at the same time its not ( hear me out )įor testing purposes in my application where i'm trying to hook I added code that shows me the dynamic address of vtable std::uintptr_t* vtable = *reinterpret_cast(&object) Std::uintptr_t* vTable = reinterpret_cast(base + 0x4268) Īfterwards I cast the address to a class that is rebuilt from the class i'm trying to hook hk_class1 = reinterpret_cast(&vTable) To calculate the address of vmt I am doing base address of our process + virtual address of vmt auto base = reinterpret_cast((GetModuleHandleA(nullptr))) I made a simple application with 2 classes and virtual functions, My vmt hook doesn't override specific function pointers, what i'm trying to do is find the vmt > make a copy of it > switch the vmt pointers so my custom vmt gets called. We use a combination of bolts for heavier items to provide extremes of mechanical strength.Recently i've been learning about vmt hooking, however there is this one annoying bug that I cannot seem to fix and i'm not sure what exactly is the problem Along with Dowels Spring Clips are ideal for storing hand tools and less heavy equipment, making tool removal simple and low effort. Hardened Steel Dowels with an applied rubber grip ensure maximum grip for your tools. Another solution is to hook dynamic objects that. Still very detectable, but it won't get caught by VAC. You can be undetected by using the empty memory at the last page of sections and using trampolines. We use a combination of fixings to store the tools onto the Shadow Board. It bans the account if the VMT pointer of certain object instances are out of module bounds or if the pointers in the table are out of range. Polycarbonate provides a cost effective, durable and visually pleasing option. For environments where tooling might be ‘roughly’ handled, we recommend applying a protection to the face of your Shadow Board to eliminate any potential scratches to the face of the board. If there is to be heavier items (such as lifting tackle or large torque wrenches) to be stored on the Shadow Board then 3mm aluminium sheet provides and hard wearing and heavy-duty base material. ACM is long lasting and durable whilst easy to work with, providing reassurance if your maintenance teams are to fix the Shadow Board to existing wall space. Most of our Shadow Boards are based on applying a laminated vinyl print to an Aluminium Composite Material (ACM) base. We use a combination of materials for our Shadow Boards, and we choose the best material option suited to the application. ![]() Invite a VMT representative to your facility and we will audit the tooling to ensure we have everything we need to accurately design your Shadow Board.ĭepending on your location and the time required onsite we might have to charge a little extra for this option We will send you in the post a printed grid board and instructions for how to correctly photograph the tools for accurate Shadow Board design. This works well if you have a relatively small and simple selection of hand tools that you wish to store on your Shadow Board. ![]() We are also happy to buy in tools if you would like us to supply the tools to go with your Shadow Board. This gives the us the benefit of being able to check the fit of each tool on the shadow board before we despatch. – Send the tools to VMT – If you have tools that you can be without or are buying in new tools – you can send them directly to us or we can arrange to collect. There are a few options for how we develop the design for your Shadow Board.
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